KR950010939A - 공기중에 함유된 탄화수소를 흡착에 의해 제거하는 방법 - Google Patents
공기중에 함유된 탄화수소를 흡착에 의해 제거하는 방법 Download PDFInfo
- Publication number
- KR950010939A KR950010939A KR1019940026806A KR19940026806A KR950010939A KR 950010939 A KR950010939 A KR 950010939A KR 1019940026806 A KR1019940026806 A KR 1019940026806A KR 19940026806 A KR19940026806 A KR 19940026806A KR 950010939 A KR950010939 A KR 950010939A
- Authority
- KR
- South Korea
- Prior art keywords
- adsorption
- gas
- desorption
- adsorbent material
- recycling
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0431—Beds with radial gas flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
- B01D2253/1085—Zeolites characterized by a silicon-aluminium ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/34—Specific shapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40077—Direction of flow
- B01D2259/40081—Counter-current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30207—Sphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30223—Cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30226—Cone or truncated cone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/302—Basic shape of the elements
- B01J2219/30246—Square or square-derived
- B01J2219/30253—Pyramid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/304—Composition or microstructure of the elements
- B01J2219/30416—Ceramic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/30—Details relating to random packing elements
- B01J2219/304—Composition or microstructure of the elements
- B01J2219/30416—Ceramic
- B01J2219/30425—Carbon
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312483A FR2711323B1 (fr) | 1993-10-18 | 1993-10-18 | Procédé d'élimination par adsorption d'hydrocarbures contenus dans l'air. |
FR93-12483 | 1993-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950010939A true KR950010939A (ko) | 1995-05-15 |
Family
ID=9452023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940026806A KR950010939A (ko) | 1993-10-18 | 1994-10-18 | 공기중에 함유된 탄화수소를 흡착에 의해 제거하는 방법 |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPH07185251A (xx) |
KR (1) | KR950010939A (xx) |
CN (1) | CN1058420C (xx) |
DE (1) | DE4437078A1 (xx) |
FR (1) | FR2711323B1 (xx) |
GB (1) | GB2282978B (xx) |
IT (1) | IT1270657B (xx) |
SE (1) | SE9403539L (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100456215B1 (ko) * | 2002-11-11 | 2004-11-06 | 주식회사 에이디칩스 | 블럭 버퍼링을 사용하는 캐쉬 메모리 장치 및 그 제어방법 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2736845B1 (fr) * | 1995-07-17 | 1997-09-05 | Renault | Procede et appareillage et installation pour le traitement d'effluents gazeux contenant des composes organiques volatils |
US5843381A (en) * | 1996-04-12 | 1998-12-01 | Calgon Carbon Corporation | Apparatus for removal of hydrogen sulfide |
DE19931799B4 (de) * | 1999-07-08 | 2008-09-11 | Süd-Chemie Zeolites GmbH | Schüttschicht mit verbesserter Wärmeübertragungseigenschaft |
CN104174251B (zh) * | 2014-08-28 | 2016-10-05 | 江苏航天惠利特环保科技有限公司 | 一种耦合法油气回收装置 |
CN105817114A (zh) * | 2016-04-08 | 2016-08-03 | 长春工业大学 | 一种间歇周期式气缸型净化含VOCs气体的方法 |
FR3096278B1 (fr) * | 2019-05-23 | 2021-09-10 | Air Liquide | Procédé de réglage d’une unité de production d’oxygène par comparaison des pressions différentielles caractéristiques des différents adsorbeurs |
CN110559801A (zh) * | 2019-09-17 | 2019-12-13 | 上海兰宝环保科技有限公司 | 一种沸石转轮中的蜂窝轮芯结构 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB501359A (en) * | 1936-09-03 | 1939-02-27 | Cons Air Conditioning Corp | Air purification |
US3873287A (en) * | 1972-07-27 | 1975-03-25 | Barnebey Cheney Co | Modular fluid filter construction |
DE7908113U1 (de) * | 1979-03-23 | 1979-11-08 | Dornier System Gmbh, 7990 Friedrichshafen | Filtereinrichtung |
CH663906A5 (de) * | 1984-08-13 | 1988-01-29 | Sulzer Ag | Adsorptionsvorrichtung zum reinigen von gasen. |
JPS62135168A (ja) * | 1985-12-03 | 1987-06-18 | 科研製薬株式会社 | 除湿包装材料 |
EP0260481B1 (de) * | 1986-09-16 | 1991-04-17 | OTTO OEKO-TECH GMBH & CO. KG | Verfahren und Vorrichtung zum Abscheiden und Rückgewinnen von flüchtigen Lösungsmitteln |
US4756726A (en) * | 1986-11-20 | 1988-07-12 | Terry Peace | Regenerable dehumidifier |
AU601817B2 (en) * | 1987-03-04 | 1990-09-20 | Union Carbide Canada Limited | Process for the recovery of halogenated hydrocarbons in a gas stream |
EP0434219B1 (en) * | 1989-11-22 | 1995-02-01 | Alberta Research Council | Hollow fiber bundle element |
US5057128A (en) * | 1990-07-03 | 1991-10-15 | Flakt, Inc. | Rotary adsorption assembly |
GB9016415D0 (en) * | 1990-07-26 | 1990-09-12 | Boc Group Plc | Gas treatment or separation apparatus |
FR2671492B1 (fr) * | 1991-01-11 | 1994-07-22 | Benzaria Jacques | Conteneur pour materiaux solides granulaires, sa fabrication et ses applications notamment en catalyse et en adsorption. |
DE4118129A1 (de) * | 1991-06-03 | 1992-12-10 | Kimmerle Hans Joachim | Luftfilter |
US5198001A (en) * | 1991-09-13 | 1993-03-30 | Calgon Carbon Corporation | Apparatus and process for removing organic compounds from a gas stream |
FR2687620B1 (fr) * | 1992-02-20 | 1998-03-13 | Inst Francais Du Petrole | Procede et dispositif pour adsorber les hydrocarbures liquides et gazeux provenant de l'event de reservoir d'essence de moteurs. |
FR2702158B1 (fr) * | 1993-03-05 | 1995-04-14 | Inst Francais Du Petrole | Procédé de traitement d'air de ventilation contenant du styrène. |
GB2279584A (en) * | 1993-07-03 | 1995-01-11 | Kenneth Ian Fitzsimmonds | System for obtaining oil-free compressed air |
-
1993
- 1993-10-18 FR FR9312483A patent/FR2711323B1/fr not_active Expired - Lifetime
-
1994
- 1994-10-13 IT ITMI942090A patent/IT1270657B/it active IP Right Grant
- 1994-10-17 SE SE9403539A patent/SE9403539L/xx not_active Application Discontinuation
- 1994-10-17 DE DE4437078A patent/DE4437078A1/de not_active Withdrawn
- 1994-10-18 JP JP6251719A patent/JPH07185251A/ja active Pending
- 1994-10-18 GB GB9420970A patent/GB2282978B/en not_active Expired - Fee Related
- 1994-10-18 KR KR1019940026806A patent/KR950010939A/ko active IP Right Grant
- 1994-10-18 CN CN94117260A patent/CN1058420C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100456215B1 (ko) * | 2002-11-11 | 2004-11-06 | 주식회사 에이디칩스 | 블럭 버퍼링을 사용하는 캐쉬 메모리 장치 및 그 제어방법 |
Also Published As
Publication number | Publication date |
---|---|
GB2282978A (en) | 1995-04-26 |
GB2282978B (en) | 1998-01-21 |
CN1106713A (zh) | 1995-08-16 |
CN1058420C (zh) | 2000-11-15 |
DE4437078A1 (de) | 1995-04-20 |
JPH07185251A (ja) | 1995-07-25 |
ITMI942090A0 (it) | 1994-10-13 |
ITMI942090A1 (it) | 1996-04-13 |
SE9403539D0 (sv) | 1994-10-17 |
FR2711323A1 (fr) | 1995-04-28 |
SE9403539L (sv) | 1995-04-19 |
FR2711323B1 (fr) | 1996-06-21 |
GB9420970D0 (en) | 1994-12-07 |
IT1270657B (it) | 1997-05-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2408664C2 (ru) | Объединенный способ удаления тяжелых углеводородов, аминовой очистки и осушки | |
US7449049B2 (en) | Method of purifying a natural gas by mercaptan adsorption | |
US3594983A (en) | Gas-treating process and system | |
MX2014009319A (es) | Proceso de remocion de hidrocarburos pesados. | |
EP1574247A1 (en) | Hydrocarbon separation method | |
JPH09141053A (ja) | 揮発性有機物の回収方法 | |
JPH08299740A (ja) | 揮発性有機物回収方法 | |
CN102958583A (zh) | 提纯天然气并使一个或多个吸附器再生的方法 | |
US5658369A (en) | Recovery of substances from exhaust streams | |
RU2613914C9 (ru) | Способ переработки природного углеводородного газа | |
KR101196929B1 (ko) | 희박한 휘발성 탄화수소를 포함하는 대량의 배기가스 정화장치 | |
CA2413513A1 (en) | Claus feed gas hydrocarbon removal | |
KR950010939A (ko) | 공기중에 함유된 탄화수소를 흡착에 의해 제거하는 방법 | |
RU2100336C1 (ru) | Способ извлечения алкена | |
RU2717052C1 (ru) | Способ и установка адсорбционной осушки и очистки природного газа | |
RU2006138029A (ru) | Способ удаления соединений с окисленной серой из углеводородного потока | |
JP2004148315A (ja) | 原料ガス流からの亜酸化窒素除去方法及び装置 | |
US5503658A (en) | Process for the removal of volatile organic compounds from a fluid stream | |
JP2836047B2 (ja) | ガス状或は液状混合物をアルミナ及びモレキュラーシーブで構成される吸着装置を使用して乾燥させる方法 | |
RU2002123346A (ru) | Способ регенерации и/или выделения оксифторидов серы из газовых смесей | |
NO860506L (no) | Selektiv adsorpsjonsprosess. | |
JP2005095858A (ja) | 揮発性炭化水素を含む排ガスの浄化方法 | |
RU2652192C2 (ru) | Способ осушки и очистки природных газов | |
JP2008068205A (ja) | 希薄な揮発性炭化水素を含む大量の排ガス浄化方法 | |
US5259853A (en) | Vent gas processing scheme with vacuum swing adsorption |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
NORF | Unpaid initial registration fee |