US20150001067A1 - Electrolyzer - Google Patents

Electrolyzer Download PDF

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Publication number
US20150001067A1
US20150001067A1 US14/372,843 US201214372843A US2015001067A1 US 20150001067 A1 US20150001067 A1 US 20150001067A1 US 201214372843 A US201214372843 A US 201214372843A US 2015001067 A1 US2015001067 A1 US 2015001067A1
Authority
US
United States
Prior art keywords
pressure
electrolysis cell
pressing force
electrolyzer
gas
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.)
Abandoned
Application number
US14/372,843
Other languages
English (en)
Inventor
Nils Mantai
Claus Würfel
Dennis Wilken
Uwe Küter
Stefan Höller
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.)
HTec Systems GmbH
Original Assignee
HTec Systems GmbH
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 HTec Systems GmbH filed Critical HTec Systems GmbH
Assigned to H-TEC SYSTEMS GMBH reassignment H-TEC SYSTEMS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Wilken, Dennis, Höller, Stefan, Küter, Uwe, Mantai, Nils, Würfel, Claus
Publication of US20150001067A1 publication Critical patent/US20150001067A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the invention relates to an electrolyzer with at least one electrolysis cell arranged between two end plates ( 6 , 8 ), in a polymer electrolyte membrane construction manner, and with means for producing a pressing force between the end plates.
  • Electrolyzers which use electrolysis cells in a polymer electrolyte membrane construction manner are known for this. These electrolysis cells usually consist essentially of a polymer electrolyte membrane, on whose two outer sides a gas diffusion electrode is arranged in each case. In the simplest case, an electrolysis cell, as a rule however a multitude of electrolysis cells in a stacked construction is arranged between two end plates, in the electrolyzer.
  • the end plates serve for the supply of electrical power and on the other hand serve for exerting a pressing force onto the electrolysis cell or onto the stack of electrolysis cells, said force being necessary for an effective operation of the electrolyzer. For this, the end plates are clamped to one another.
  • an object of the present invention to provide an electrolyzer of the type mentioned above. with which an adequately large pressing of the electrolysis cell or electrolysis cells is always ensured, independently of the operating pressure prevailing in the electrolyzer.
  • the electrolyzer according to the invention which serves for breaking water down into oxygen and hydrogen and preferably serves for the production of hydrogen, in the usual manner comprises at least one electrolysis cell in a polymer electrolyte membrane construction manner, said at least one cell being arranged between two end plates.
  • the electrolyzer according to the invention, between the two end plates can also comprise several electrolysis cells grouped together into a stack, for producing greater hydrogen quantities, and therefore when hereinafter one speaks of an electrolysis cell, this is also to be understood as an electrolysis cell stack.
  • the two end plates and the electrolysis cell arranged therebetween form a common construction unit.
  • the end plates and the electrolysis cell located therebetween are clamped together for example with tie rods.
  • this pressing force however alone is not sufficient, in order to ensure an operation of the electrolyzer which is optimal with regard to the efficiency of the electrolysis cell, at higher operating pressures, i.e. gas pressures produced by the electrolysis cell of e.g. above 2 MPa.
  • the electrolyzer according to the invention comprises further means for producing a pressing force between the end plates.
  • the basic idea of the invention is to control the pressing force exerted onto the electrolysis cell, at least partly in dependence on the gas pressure produced by the electrolysis cell. I.e. a control is provided, with which the size of the pressing force onto the electrolysis cell can be changed in a targeted manner in direct relation to a change of the gas pressure produced by the electrolysis cell.
  • the pressing force on the electrolysis cell can be increased preferably proportionally to the increase of the gas pressure, in a manner such that the previously outlined disadvantageous effect of a gas pressure increase on the pressing force is compensated, and a pressing force on the electrolysis cell and which is constant in the ideal case is always set independently of the gas pressure and permits the operation of the electrolysis cell with an optimal efficiency.
  • the gas pressure which is produced by the electrolysis cell can be detected as the case may be by way of a pressure sensor arranged in the region of the electrolyzer which is subjected to gas pressure, for the gas-pressure-dependent control of the pressing force on the electrolysis cell. wherein then an electrical output signal of the pressure sensor is led to the control as in input signal and there is converted into a control variable for preferably one, as the case may be however also several actuators for producing the pressing force.
  • the pressing force can however be controlled directly by the gas pressure produced by the electrolysis cell.
  • an actuator for producing the pressing force is impinged directly with the gas pressure as a control variable, or is actuated by the gas pressure.
  • a closed overflow path is to be provided from the inside of the electrolyzer to the actuator, wherein this overflow path on the electrolyzer can basically be formed in a region, in which the oxygen arises with the water decomposition, thus at the anode side, as well as in a region in which the hydrogen arises, thus at the cathode side.
  • an overflow path can be formed from a hydrogen outlet of the electrolyzer to an actuator producing the pressing force, or to a control controlling the actuator.
  • a pressing force exerted onto the electrolysis cell is greater than the gas pressure produced by the electrolysis cell, in order to ensure that an adequately large pressing force is exerted on the electrolysis cell independently of the gas pressure which is produced by the electrolysis cell.
  • the actuator for this can contain a pressure multiplier (amplifier) as the case may be.
  • the pressing force controlled by the gas pressure is fluidically produced. Accordingly, the pressing force on the electrolysis cell is produced directly or indirectly via a component suitable for this, by a gas or a liquid, wherein liquids as a rule are to be preferred since they behave in a quasi incompressible manner.
  • the pressing force on the electrolysis cell it is also conceivable for the pressing force on the electrolysis cell to be provided in the simplest case directly by the gas produced by the electrolysis cell.
  • a pressure-proof chamber being formed on at least one of the two end plates of the electrolyzer, at a side which faces the electrolysis cell. This chamber serves for receiving the fluid which is pressed directly against the flat side of the electrolysis cell which is arranged adjacent the chamber.
  • a pressing body which is displaceably guided in the direction of the electrolysis cell can be arranged in the chamber formed on the end plate, and this body is pressed by the fluid located in the chamber, against the electrolysis cell, and thus the pressing force is exerted into this.
  • the pressing body is hereby sealed off in a fluid tight manner with respect to the edge of the chamber, in order to prevent a flaw of the fluid out of the chamber.
  • the chamber is usefully conduit-connected to a pressure-producer for producing the pressing force.
  • a pressure-producer in this context is to be understood as a pump or likewise, with which the fluid is pressed into the chamber formed on the end plate.
  • the pressure producer is usefully arranged at the side of the end plate which is away from the electrolysis cell, wherein a fluid conduit is led from the pressure producer to the chamber, through the end plate.
  • a piston-cylinder arrangement can form the pressure producer, in a manner which is simple with regard to design.
  • a cylinder can be provided, which is divided by a piston which is movably guided therein, into two cylinder chambers, wherein one of the cylinder chambers is conduit-connected to the chamber formed on the end plate, and the piston of the other chamber is pressure-impinged by the hydrogen produced by the electrolysis cell.
  • a cylinder chamber of the piston-cylinder arrangement is conduit-connected to a hydrogen outlet of the electrolyzer.
  • the piston-cylinder arrangement is particularly advantageously designed in a manner such that it forms a pressure converter.
  • the end-face of the piston which delimits the cylinder chamber at the piston-cylinder arrangement which is conduit-connected at the chamber formed on the end plate, is smaller than the end-face of the piston which is pressure-impinged by the hydrogen, as is common for pressure converters, wherein the pressure conversion ratio of the pressure converter results from the quotient of the last-mentioned and first-mentioned piston end-face.
  • the pressure converter has a pressure conversion ratio which lies in a region of 1.1 to 2.5 and preferably between 1.2 and 2.0. It has been found that with such a pressure conversion ratio, an adequately large pressing force is exerted onto the electrolysis cell, without the pressing force being so large that the electrolysis cell is damaged by this or even destroyed.
  • the electrolyzer 2 comprises an electrolysis cell 4 which is arranged between two end plates 6 and 8 .
  • An opening 10 forming a hydrogen outlet of the electrolyzer 2 is formed on the end plate 6 , and a conduit 12 indicated only schematically connects to this opening at the outer side of the electrolyzer 2 .
  • the hydrogen produced in the electrolysis cell 4 is led away to a storage tank which is not shown in the drawing, via the opening 10 and the conduit 12 connected thereto.
  • a polymer electrolyte membrane 14 is arranged centrally in the electrolysis cell 4 .
  • This polymer electrolyte membrane 14 at its two flat sides is covered in each case by a gas diffusion electrode 16 and 18 .
  • a plate 20 is arranged on the outer side of the gas diffusion electrode 16 , and a plate 22 on the outer side of the gas diffusion electrode 18 .
  • the plates 20 and 22 serve for the electricity connection.
  • Seals 24 seal the intermediate spaces between the polymer electrolyte membrane 14 and the two plates 20 and 22 .
  • the electrolysis cell 4 at its end which is at the top in the drawing is sealed by two seals 26 .
  • the two end plates 6 and 8 are clamped to one another via tie rods which are not represented in the drawing.
  • a certain pressing force which is necessary for a high efficiency of the electrolysis taking place in the electrolysis cell 4 is exerted onto the electrolysis cell 4 by way of this. If a high gas pressure which is mainly due to the hydrogen occurring with the electrolysis prevails in the electrolyzer 2 , then the pressing force exerted by the end plates 6 and 8 onto the electrolysis cell 4 is no longer sufficient for an electrolysis which takes place with an adequate efficiency. For this reason, an additional pressing force must be exerted onto the electrolysis cell 4 .
  • the constructional measures which are selected for this are described hereinafter.
  • a recess 28 which tapers in the direction away from the plate 20 amid the formation of a shoulder 30 is formed on the flat side of the end plate 6 which faces the plate 20 .
  • the shoulder 30 extends around the complete periphery of the recess 28 and serves for receiving a seal 34 which seals the end plate 6 with respect to the plate 20 in a fluid-tight manner.
  • a bore 36 which runs out in the recess 28 extends through the end plate 6 . The bore 36 thus forms an access to the chamber which is formed by the recess 28 and the pressing body 32 .
  • a conduit branching 38 is formed on the conduit 12 .
  • a conduit 40 leads from this conduit branching 38 to a piston-cylinder arrangement 42 .
  • the piston-cylinder arrangement 42 comprises a closed hollow cylinder 44 , in which a piston 46 is axially displaceably guided.
  • the piston 46 divides the interior of the hollow cylinder 44 into a first cylinder chamber 48 and a second cylinder chamber 50 .
  • An opening 52 which runs out in the cylinder chamber 48 is formed on the hollow cylinder 44 on the peripheral side.
  • the conduit 40 is connected on this opening 52 .
  • a further opening 54 is formed on the hollow cylinder 44 on a faceside delimiting the cylinder chamber 50 .
  • a conduit 56 represented schematically in the torm at an arrow leads from the opening 54 to the bore 36 formed on the end plate 6 .
  • a piston rod 58 is formed on fhe pisfon 46 , on the face-side which faces the cylinder chamber 50 .
  • This piston rod 58 extends concentrically to a middle axis A of the piston 46 through an opening 60 which is formed on fhe face-side of the hollow cylinder 44 which delimits the cylinder chamber 50 .
  • the pressure-effective surface area of the piston 46 on the face-side tacing the cylinder chamber 50 is smaller than at the tace-side facing the cylinder chamber 48 , on account of this piston rod 58 led out of the cylinder chamber 50 .
  • the piston-cylinder arrangement 42 forms a pressure converter due to this design.
  • the hydrogen produced by the electrolyzer 2 is to be stored at a high pressure in a storage tank which is not represented. Accordingly, a high hydrogen pressure prevails in the electrolyzer 2 and in the conduit 12 leading to the storage tank, and this high pressure, with the electrolyzers which have been known until now, would lead to the fact that the gas diffusion electrodes 16 and 18 would no longer be pressed onto one another to a sufficient extent.
  • a fluid located in the recess 28 presses with a correspondingly increased pressure against the plate 20 so that it is ensured that the two gas diffusion electrodes 16 and 18 are pressed onto one another to an adequate extent.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Analytical Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
US14/372,843 2012-01-18 2012-12-18 Electrolyzer Abandoned US20150001067A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12151641.3 2012-01-18
EP12151641.3A EP2617874B1 (fr) 2012-01-18 2012-01-18 Electrolyseur
PCT/EP2012/076048 WO2013107590A1 (fr) 2012-01-18 2012-12-18 Électrolyseur

Publications (1)

Publication Number Publication Date
US20150001067A1 true US20150001067A1 (en) 2015-01-01

Family

ID=47471820

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/372,843 Abandoned US20150001067A1 (en) 2012-01-18 2012-12-18 Electrolyzer

Country Status (7)

Country Link
US (1) US20150001067A1 (fr)
EP (1) EP2617874B1 (fr)
JP (1) JP2015504116A (fr)
KR (1) KR102055191B1 (fr)
CN (1) CN104066872A (fr)
CA (1) CA2859849C (fr)
WO (1) WO2013107590A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170311641A1 (en) * 2016-04-28 2017-11-02 Renew Biomass, LLC Comestible Comprising Miscanthus Plant Fiber
US20190131634A1 (en) * 2017-10-30 2019-05-02 Commissariat A L'energie Atomique Et Aux Energies Al Ternatives Reversible individual unit for electrolysis or co-electrolysis of water (soec) or for fuel cell (sofc) with operation under pressure and decoupled compressive force
US10577700B2 (en) 2012-06-12 2020-03-03 Aquahydrex Pty Ltd Breathable electrode structure and method for use in water splitting
US10637068B2 (en) 2013-07-31 2020-04-28 Aquahydrex, Inc. Modular electrochemical cells
WO2020106153A1 (fr) * 2018-11-23 2020-05-28 Hyet Holding B.V. Compresseur à semi-conducteurs et procédé de fourniture d'une contrepression sur un empilement de cellules de compresseur à semi-conducteurs
US11005117B2 (en) 2019-02-01 2021-05-11 Aquahydrex, Inc. Electrochemical system with confined electrolyte

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747539B (zh) * 2013-12-26 2017-07-04 北京北方微电子基地设备工艺研究中心有限责任公司 一种密封装置及等离子体加工设备
KR101686138B1 (ko) * 2014-12-23 2016-12-28 (주) 테크윈 전해모듈
DK3543375T3 (da) * 2018-03-22 2021-12-06 Hymeth Aps Højttrykselektrolysatorsystem omfattende trykkompenserendesystem
US20210376339A1 (en) * 2018-11-06 2021-12-02 Panasonic Intellectual Property Management Co., Ltd. Electrochemical hydrogen pump
KR102375457B1 (ko) 2020-05-26 2022-03-17 중앙대학교 산학협력단 전해조용 채칼형 유로구조 및 그 유로구조를 갖는 고분자 전해질 전해조
WO2022102193A1 (fr) * 2020-11-10 2022-05-19 パナソニックＩｐマネジメント株式会社 Dispositif de compression
JP7016035B1 (ja) * 2020-11-10 2022-02-04 パナソニックＩｐマネジメント株式会社 圧縮装置
EP4112782A1 (fr) * 2021-06-30 2023-01-04 Siemens Energy Global GmbH & Co. KG Dispositif de montage, ainsi qu'utilisation du dispositif de montage pour le montage des cellules d'électrolyse d'un électrolyseur
JP7281656B1 (ja) * 2021-12-23 2023-05-26 パナソニックＩｐマネジメント株式会社 圧縮装置
WO2023120042A1 (fr) * 2021-12-23 2023-06-29 パナソニックＩｐマネジメント株式会社 Dispositif de compression

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040115511A1 (en) * 2001-03-24 2004-06-17 Stefan Holler End-plate assembly of an electrochemical cell with a polymer elctrolyte membrane construction

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US3432420A (en) * 1965-01-13 1969-03-11 Fairbanks Morse Inc Electrolytic cell assemblies
US4235694A (en) * 1978-10-06 1980-11-25 Hall Frederick F Electrolytic cells for hydrogen gas production
US4846951A (en) * 1988-07-15 1989-07-11 The Dow Chemical Company Process and apparatus for controlling gasket force in electrolysis cells
JP2003160891A (ja) * 2001-11-26 2003-06-06 Hitachi Zosen Corp 固体高分子型水電解槽における締め付け装置
JP4597800B2 (ja) * 2005-07-19 2010-12-15 本田技研工業株式会社 高圧水素製造装置
EP2180087A1 (fr) * 2008-10-27 2010-04-28 Casale Chemicals S.A. Électrolyseur haute pression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040115511A1 (en) * 2001-03-24 2004-06-17 Stefan Holler End-plate assembly of an electrochemical cell with a polymer elctrolyte membrane construction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10577700B2 (en) 2012-06-12 2020-03-03 Aquahydrex Pty Ltd Breathable electrode structure and method for use in water splitting
US11018345B2 (en) 2013-07-31 2021-05-25 Aquahydrex, Inc. Method and electrochemical cell for managing electrochemical reactions
US10637068B2 (en) 2013-07-31 2020-04-28 Aquahydrex, Inc. Modular electrochemical cells
US20170311641A1 (en) * 2016-04-28 2017-11-02 Renew Biomass, LLC Comestible Comprising Miscanthus Plant Fiber
US11063268B2 (en) * 2017-10-30 2021-07-13 Commissariat A L'energie Atomique Et Aux Energies Alternatives Reversible individual unit for electrolysis or co-electrolysis of water (SOEC) or for fuel cell (SOFC) with operation under pressure and decoupled compressive force
US20190131634A1 (en) * 2017-10-30 2019-05-02 Commissariat A L'energie Atomique Et Aux Energies Al Ternatives Reversible individual unit for electrolysis or co-electrolysis of water (soec) or for fuel cell (sofc) with operation under pressure and decoupled compressive force
NL2022067B1 (en) * 2018-11-23 2020-06-05 Hyet Holding B V Solid-state compressor and method for providing counter pressure on a solid-state compressor cell stack
BE1027327B1 (fr) * 2018-11-23 2021-04-19 Hyet Holding B V Compresseur a etat solide et procede pour fournir une contre-pression sur un empilement de cellules de compresseur a l'etat solide
WO2020106153A1 (fr) * 2018-11-23 2020-05-28 Hyet Holding B.V. Compresseur à semi-conducteurs et procédé de fourniture d'une contrepression sur un empilement de cellules de compresseur à semi-conducteurs
CN113302339A (zh) * 2018-11-23 2021-08-24 海厄特控股有限公司 固态压缩器和在固态压缩器电池叠堆上提供反压力的方法
US11891709B2 (en) 2018-11-23 2024-02-06 Hyet Holding B.V. Solid-state compressor and method for providing counter pressure on a solid-state compressor cell stack
US11005117B2 (en) 2019-02-01 2021-05-11 Aquahydrex, Inc. Electrochemical system with confined electrolyte
US11682783B2 (en) 2019-02-01 2023-06-20 Aquahydrex, Inc. Electrochemical system with confined electrolyte

Also Published As

Publication number Publication date
CN104066872A (zh) 2014-09-24
KR20140113958A (ko) 2014-09-25
EP2617874B1 (fr) 2015-06-03
CA2859849C (fr) 2021-05-04
JP2015504116A (ja) 2015-02-05
EP2617874A1 (fr) 2013-07-24
WO2013107590A1 (fr) 2013-07-25
CA2859849A1 (fr) 2013-07-25
KR102055191B1 (ko) 2019-12-12

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Legal Events

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AS Assignment

Owner name: H-TEC SYSTEMS GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MANTAI, NILS;WUERFEL, CLAUS;WILKEN, DENNIS;AND OTHERS;SIGNING DATES FROM 20140714 TO 20140715;REEL/FRAME:033350/0657

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION