WO2021123641A1 - Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte - Google Patents

Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte Download PDF

Info

Publication number
WO2021123641A1
WO2021123641A1 PCT/FR2020/052503 FR2020052503W WO2021123641A1 WO 2021123641 A1 WO2021123641 A1 WO 2021123641A1 FR 2020052503 W FR2020052503 W FR 2020052503W WO 2021123641 A1 WO2021123641 A1 WO 2021123641A1
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
door assembly
flange
wall portion
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FR2020/052503
Other languages
English (en)
French (fr)
Inventor
Julien FELIX
Jean-Luc SCHNEIDER
Thierry Girard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABC Transfer SAS
Original Assignee
ABC Transfer SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABC Transfer SAS filed Critical ABC Transfer SAS
Priority to US17/787,195 priority Critical patent/US20230015340A1/en
Priority to CN202080086481.6A priority patent/CN115151392A/zh
Priority to EP20845600.4A priority patent/EP4076872B1/fr
Priority to JP2022536790A priority patent/JP2023507131A/ja
Publication of WO2021123641A1 publication Critical patent/WO2021123641A1/fr
Anticipated expiration legal-status Critical
Priority to JP2025105648A priority patent/JP2025165923A/ja
Ceased legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00Other devices specially designed for securing wings, e.g. with suction cups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J21/00Chambers provided with manipulation devices
    • B25J21/02Glove-boxes, i.e. chambers in which manipulations are performed by the human hands in gloves built into the chamber walls; Gloves therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00Enclosures; Chambers
    • B01L1/50Enclosures; Chambers for storing hazardous materials in the laboratory, e.g. cupboards, waste containers
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00Shielded cells or rooms
    • G21F7/005Shielded passages through walls; Locks; Transferring devices between rooms
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00Shielded cells or rooms
    • G21F7/04Shielded glove-boxes
    • G21F7/047Shielded passages; Closing or transferring means between glove-boxes

Definitions

  • the present invention relates to an assembly forming a door intended to equip a first closed volume and able to allow a sealed connection of a second closed volume on the first closed volume for the transfer to transfer products from there. 'to each other without breaking the containment.
  • This may be for example the transfer of hazardous products such as certain biological, chemical or radioactive products, the transfer of components such as caps, vials, plungers, syringes, etc., the transfer of environmental control devices such as pressure plates. culture medium, particulate counters, etc., the transfer of cleaning systems, the transfer of liquids, powders, tools, the transfer of waste to the outside of the enclosure and / or the transfer of any element necessary for production or maintenance of the production line.
  • volume is meant in the present application any product, equipment or installation delimiting a volume.
  • it can be an enclosure, an insulator, a receptacle, a container, a bag, etc.
  • closed volume is meant a volume isolated from the external environment. It may be in particular, but not exclusively, a volume for the preparation, storage and / or handling of products which must not be in contact with the outside or with a user.
  • the door assembly is intended in particular, but not exclusively, to be mounted on an enclosure having a glass wall.
  • the container is connected to the handling chamber by connecting the door / flange assemblies to one another.
  • This connection is generally made by engaging a so-called bayonet system - male ears of the flange and of the receptacle door respectively engaging in notches of the flange and of the handling enclosure door - followed by a rotation of the container allowing the locking of the container flange on the flange of the handling chamber as well as the locking of the container door on the chamber door, the unlocking of the doors connected one to the other the other being produced by unlocking the doors from their respective flanges.
  • the invention aims to remedy these problems by providing a door assembly, and an enclosure comprising such a door assembly, which can be assembled in a simple, rapid and easy manner without altering the walls of the enclosure on which it is mounted.
  • the invention provides a door assembly for a sealed enclosure, said enclosure comprising a wall having a wall portion delimiting at least one passage opening therein, said door assembly comprising a flange intended to be fixed to the wall portion delimiting the passage opening and an opening movable relative to the flange between a closed position in which the opening closes the passage opening and an open position , characterized in that the flange comprises two flange elements assembled together, one of the flange elements defining an inner ring of the enclosure and having a bearing surface arranged to bear on the inner surface of the wall portion , the other flange element defining an outer ring to the enclosure and having a bearing surface arranged to bear on the outer surface of the wall portion, the flange further comprising means for clamping one of them at least of the two flange members against the wall portion.
  • the wall of the enclosure is thus “sandwiched" between the inner and outer rings and clamped between the latter by means of the clamping means, the clamping being carried out from ring to ring without the wall 2 of the enclosure is crossed.
  • the two flange elements are separate parts and independent of each other. They are assembled with each other in a reversible manner.
  • the door assembly comprises at least one protective washer intended to be disposed between the bearing surface of at least one of the flange elements and the wall portion.
  • the door assembly comprises at least one seal intended to be inserted between the bearing surface of at least one of the flange elements and the wall portion.
  • the door assembly comprises a spacer arranged to be disposed between two wall elements forming the wall of said enclosure.
  • the door assembly is arranged to allow the sealed connection of a door assembly fitted to a container by means of a bayonet system.
  • the invention also relates to a sealed enclosure comprising at least one passage opening provided with a door assembly as described above.
  • FIG. 1 shows a first embodiment of a door assembly mounted on a single enclosure wall
  • FIG. 1 shows a cross-sectional view of the door assembly of Figure 1;
  • FIG. 3 shows a second embodiment of a door assembly mounted on a double enclosure wall
  • FIG. 4 shows a cross-sectional view of the door assembly of Figure 3.
  • identical or similar elements of the different embodiments are identified by identical reference signs on the set of figures.
  • the terms “exterior” and “interior” are defined with respect to the enclosure on which the door assembly is mounted.
  • the term “exterior” denotes that which is located outside the interior space of the enclosure, the furthest from the interior space or directed away from the interior of the enclosure and by “interior”. what is located in the interior space, closest to the interior space or directed towards the interior of the enclosure.
  • FIG. 1 there is described an assembly forming a door 1 fitted to an enclosure comprising a glass wall 2 provided with at least one passage opening for the passage of products from the outside of the enclosure inside it and vice versa.
  • the door assembly 1 is arranged to constitute a junction device making it possible to connect a closed volume, such as a container, bag or the like, equipped with a door assembly cooperating with the door assembly 1. according to the invention, without breaking the confinement.
  • the door assembly 1 comprises a flange 3 intended to be fixed on the wall portion 20 delimiting the passage opening on the one hand and an opening 4 mounted movably relative to the flange 3 between a closed position in which the opening 4 closes the passage opening and an open position.
  • the leaf 4 is movably mounted on the flange 3 by a hinge 5.
  • the flange 3 of the door assembly 1 comprises two flange elements 3a, 3b distinct from each other and assembled to each other by means, in the example illustrated, of assembly screws 6.
  • the assembly screws 6 are masked by covers 12.
  • the flange elements 3a, 3b are assembled directly to one another.
  • the flange 3 is mounted on the wall portion 20 of the enclosure, one of the flange elements 3a being located inside the enclosure while the other flange element 3b is located on the inside. exterior of the enclosure.
  • the flange elements 3a, 3b thus respectively define an inner ring to the enclosure and an outer ring to the enclosure.
  • the inner and outer rings are designated hereafter with the same references as those of the flange elements 3a, 3b.
  • the rings 3a, 3b have a surface 30a, 30b arranged to bear directly or indirectly on the surface of the wall portion 20 vis-à-vis which it is placed.
  • the inner ring 3a has an outer bearing surface 30a resting directly on the inner surface 20a of the wall portion 20 while the outer ring 3b has an inner bearing surface 30b s. 'pressing on the outer surface 20b of the wall portion 20.
  • the support is provided by pressure screws 11 housed in holes made in the outer ring 3b and protruding from the surface d 'internal support 30b.
  • two protective washers 7, 9, preferably of plastic material, are interposed respectively between the inner ring 3a and the wall portion 20 on the one hand and between the outer ring 3b and the wall portion 20 on the other hand.
  • These protective washers are hereinafter referred to as inner 7 and outer protective washers 9.
  • the inner protective washer 7, of annular shape is housed in a groove delimited by the peripheral rim 31a of the inner crown and a circular collar 33a outside the inner crown 3a.
  • the outer washer 9 for its part comprises an annular body, the periphery of which outer is provided with a heel 90 extending along the outer periphery 32b of the outer ring 3b on the one hand and along the wall portion 20.
  • the latter comprises at least one annular seal, advantageously elastomeric, and preferably made of silicone, interposed between the wall portion 20 and the surface d support of at least one of the two rings 3a, 3b.
  • the door assembly 1 comprises a single seal 8 interposed between the peripheral rim 31a of the inner ring 3a and the wall portion 20 of the enclosure. More particularly, the seal 8 is located in the gap delimited by the peripheral rim 31a of the inner ring 3a, the inner protective washer 7 and the inner surface 20a of the wall portion 20. It also has a heel 80 extending along the outer periphery 32a of the inner ring 3a on the one hand and along the inner surface 20a of the wall portion 20.
  • the crushing of the seal 8 is performed using the pressure screws 11.
  • the pressure screws 11 mounted through the outer ring 3b and extending beyond the bearing surface of the outer ring 3b thus press the outer protective washer 9 against the wall portion 20, pressing the latter against the inner protective washer 7 by jointly crushing the seal
  • the assembly of the rings 3a, 3b is carried out by assembly means, in the example of the screws, without the latter passing through the wall.
  • the receiving holes for the screws are thus formed on the rings 3a, 3b to be radially offset from the edge of the wall portion 20 when the rings 3a and 3b are mounted on the wall 2.
  • the screws d 'assembly 6 pass through the rings 3a and 3b near the edge of the wall portion 20, the screw holes in the inner ring being located in the circular collar 33a.
  • FIGS 3 and 4 illustrate another example of mounting a door assembly 10 according to the invention.
  • the assembly forming a door 10 is mounted on an enclosure wall formed by two wall elements 20, 21.
  • This assembly forming a door 10 incorporates all of the elements previously described except for the crown.
  • outer 3b and the outer protective washer 9 come to rest on the wall portion 21a of the outer wall element 21 while the inner ring 3a, the washer inner protection 7 and the seal 8 come to rest against the wall portion 20a of the inner wall element 20.
  • the door assembly 10 further comprises a spacer 13 placed between the two wall elements 20, 21.
  • the spacer 13 is assembled with the flange elements 3a, 3b by means of the assembly screws 6, the latter passing right through the spacer 13 to connect the two flange elements 3a, 3b, and this without passing through the wall elements 20,
  • Two seals 14, 15 annular, of substantially circular section, are placed between the spacer 13 and each of the wall portions 20a, 21a of the wall elements 20, 21.
  • the seal between the two wall elements 20, 21 is ensured by crushing said seals 14, 15 via the pressure screws.
  • the door assemblies are described in connection with a single or double wall of glass. It is of course obvious that the assembly forming a door according to the invention is not limited to this type of enclosure, is that it can be intended for enclosures having walls made of a material other than glass without going out. of the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Robotics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manipulator (AREA)
  • Casings For Electric Apparatus (AREA)
  • Closures For Containers (AREA)
  • Lock And Its Accessories (AREA)
PCT/FR2020/052503 2019-12-19 2020-12-17 Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte Ceased WO2021123641A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US17/787,195 US20230015340A1 (en) 2019-12-19 2020-12-17 Door Assembly Allowing Improved Installation on the Walls of an Enclosure, and Enclosure Comprising Such a Door Assembly
CN202080086481.6A CN115151392A (zh) 2019-12-19 2020-12-17 允许改进安装在封闭体壁上的门组合件以及包括此类门组合件的封闭体
EP20845600.4A EP4076872B1 (fr) 2019-12-19 2020-12-17 Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte
JP2022536790A JP2023507131A (ja) 2019-12-19 2020-12-17 筐体の壁への改善された設置を可能にするドアアセンブリ、およびそのようなドアアセンブリを含む筐体
JP2025105648A JP2025165923A (ja) 2019-12-19 2025-06-23 筐体の壁への改善された設置を可能にするドアアセンブリ、およびそのようなドアアセンブリを含む筐体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1914959 2019-12-19
FR1914959A FR3105054B1 (fr) 2019-12-19 2019-12-19 Ensemble formant porte permettant un montage ameliore sur les paroi d’une enceinte, et enceinte comportant un tel ensemble de porte

Publications (1)

Publication Number Publication Date
WO2021123641A1 true WO2021123641A1 (fr) 2021-06-24

Family

ID=70738628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2020/052503 Ceased WO2021123641A1 (fr) 2019-12-19 2020-12-17 Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte

Country Status (6)

Country Link
US (1) US20230015340A1 (https=)
EP (1) EP4076872B1 (https=)
JP (2) JP2023507131A (https=)
CN (1) CN115151392A (https=)
FR (1) FR3105054B1 (https=)
WO (1) WO2021123641A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023065253A (ja) * 2021-10-27 2023-05-12 万善工機株式会社 物品連結構造

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP1723868S (ja) * 2021-12-23 2022-09-02 移送ドア

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418160A1 (fr) * 1989-09-15 1991-03-20 Sne La Calhene Dispositif de fixation étanche d'un organe interchangeable dans une bride de cellule et outil de montage d'un tel dispositif
EP0720895A1 (en) * 1995-01-05 1996-07-10 Delaware Capital Formation Inc. Sterilizable glove apparatus
FR2777822A1 (fr) 1998-04-23 1999-10-29 Calhene Dispositif de transfert etanche a decontamination integree, par rayonnements ultraviolets
FR2834582A1 (fr) 2002-01-09 2003-07-11 Calhene Procede de montage d'un equipement de manipulation sur une enceinte de confinement contenant un milieu sterile
FR2858827A1 (fr) * 2003-08-15 2005-02-18 Premier Technology Inc Fermeture a bloc-fenetre
FR3036054A1 (fr) 2015-05-12 2016-11-18 Charles Glachet Bride et porte de conteneur en matiere plastique a compensation des tolerances d'injection pour connexion

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010588A (en) * 1973-10-19 1977-03-08 Central Research Laboratories, Inc. Sealing device
US4141609A (en) * 1977-11-25 1979-02-27 Central Research Laboratories, Inc. System for effecting access into sealed enclosures
FR2496325B1 (fr) * 1980-12-16 1987-05-22 Calhene Dispositif de securite pour systeme de verrouillage entre deux enceintes etanches
US4480426A (en) * 1982-01-19 1984-11-06 The United States Of America As Represented By The United States Department Of Energy Material bagging device
FR2695343B1 (fr) * 1992-09-04 1994-11-25 Sne Calhene Mécanisme de commande centralisé, à sécurités incorporées, pour un dispositif de transfert étanche entre deux volumes clos.
US5460439A (en) * 1994-01-07 1995-10-24 Delaware Capital Formation, Inc. Sealed transfer system
JP2000343479A (ja) * 1999-06-08 2000-12-12 Earekkusu:Kk アイソレータ装置のグローブ機構
US7780248B2 (en) * 2005-07-19 2010-08-24 Merrick & Company Glovebox for a double wall containment module
FR2944380B1 (fr) * 2009-04-09 2011-05-13 Charles Glachet Dispositif de fixation etanche d'un organe interchangeable dans une bague d'enceinte montee sur une paroi de cellule de confinement
US8887365B2 (en) * 2009-09-24 2014-11-18 Delaware Capital Formation, Inc. Glove port retrofit assembly and method of replacing components
US10538001B2 (en) * 2011-03-16 2020-01-21 Intech Defense, Llc Methods and systems for providing protection against harmful materials
FR3010120B1 (fr) * 2013-09-03 2016-03-04 Getinge La Calhene Dispositif de connexion etanche entre deux volumes clos comportant des moyens de maintien prealablement a la connexion
US11267143B2 (en) * 2016-05-23 2022-03-08 Nara Machinery Co., Ltd. Port structure of containment apparatus, kit for creating port of containment apparatus, and containment apparatus
US10550940B2 (en) * 2016-07-11 2020-02-04 In-Line Flow Products Ltd. Closure for pressure vessel or pipeline
EP3621774A1 (en) * 2017-05-08 2020-03-18 Delaware Capital Formation, Inc. Access port having a cover

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418160A1 (fr) * 1989-09-15 1991-03-20 Sne La Calhene Dispositif de fixation étanche d'un organe interchangeable dans une bride de cellule et outil de montage d'un tel dispositif
EP0720895A1 (en) * 1995-01-05 1996-07-10 Delaware Capital Formation Inc. Sterilizable glove apparatus
FR2777822A1 (fr) 1998-04-23 1999-10-29 Calhene Dispositif de transfert etanche a decontamination integree, par rayonnements ultraviolets
FR2834582A1 (fr) 2002-01-09 2003-07-11 Calhene Procede de montage d'un equipement de manipulation sur une enceinte de confinement contenant un milieu sterile
FR2858827A1 (fr) * 2003-08-15 2005-02-18 Premier Technology Inc Fermeture a bloc-fenetre
FR3036054A1 (fr) 2015-05-12 2016-11-18 Charles Glachet Bride et porte de conteneur en matiere plastique a compensation des tolerances d'injection pour connexion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023065253A (ja) * 2021-10-27 2023-05-12 万善工機株式会社 物品連結構造
JP7381109B2 (ja) 2021-10-27 2023-11-15 万善工機株式会社 物品連結構造

Also Published As

Publication number Publication date
US20230015340A1 (en) 2023-01-19
FR3105054A1 (fr) 2021-06-25
EP4076872A1 (fr) 2022-10-26
CN115151392A (zh) 2022-10-04
JP2025165923A (ja) 2025-11-05
JP2023507131A (ja) 2023-02-21
EP4076872C0 (fr) 2025-05-07
EP4076872B1 (fr) 2025-05-07
FR3105054B1 (fr) 2023-03-10

Similar Documents

Publication Publication Date Title
EP4076747B1 (fr) Conteneur etanche comprenant un dispositif permettant un raccordement amovible a une enceinte
EP4076872B1 (fr) Ensemble formant porte permettant un montage ameliore sur les parois d'une enceinte, et enceinte comportant un tel ensemble de porte
EP4076753B1 (fr) Conteneur à étanchéité renforcée
EP1433988B1 (fr) Vanne de régulation
FR2971425A1 (fr) Dispositif de radioprotection pour seringue
WO2021123635A1 (fr) Arrangement de porte permettant un transfert etanche entre deux volumes clos
FR2956953A1 (fr) Base de boitier, boitier et procede d'assemblage associes
FR3102698A1 (fr) Conteneur etanche comprenant un dispositif permettant un raccordement amovible a une enceinte
EP0247921B1 (fr) Dispositif deconnectable pour la mise en communication de deux volumes clos sans rupture du confinement
EP4241287A2 (fr) Ensemble de connexion pour conteneur de transfert etanche
WO2021089950A1 (fr) Dispositif de jonction etanche entre deux enceintes de confinement offrant une etancheite amelioree
EP4153506A1 (fr) Conteneur etanche a paroi souple comprenant une bague de fixation pour son assemblage avec un dispositif permettant un raccordement amovible du conteneur a une enceinte
EP4076754A1 (fr) Conteneur etanche pourvu d'une bride bi-matiere
EP4076874B1 (fr) Arrangement de porte equipant un premier volume clos permettant de reduire les risques de contamination lors du raccordement d'un deuxieme volume clos au premier volume clos
FR2994561A1 (fr) Systeme de fixation par sertissage d'un couvercle sur une enceinte close
WO2023111303A1 (fr) Conteneur etanche comprenant une bande de renfort d'etancheite bicouche
EP2609942A1 (fr) Dispositif anti retour de fluides incorporé dans un ensemble d'expression de lait maternel
FR3162998A1 (fr) Conteneur etanche raccordable a une enceinte sterile comprenant une collerette de protection d’une potentielle contamination lors du transfert de produits
FR2994532A1 (fr) Enceinte close pour une installation de transfert etanche a double porte
FR3163199A1 (fr) Conteneur blindé pour le transport d’un récipient contenant un produit radioactif
FR2594350A3 (fr) Filtre a air pour vehicules
FR2873611A1 (fr) Dispositif pour assurer l'etancheite de gants dans des installations pharmaceutiques

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20845600

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022536790

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020845600

Country of ref document: EP

Effective date: 20220719

WWG Wipo information: grant in national office

Ref document number: 2020845600

Country of ref document: EP