FI20070288L - Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi - Google Patents
Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi Download PDFInfo
- Publication number
- FI20070288L FI20070288L FI20070288A FI20070288A FI20070288L FI 20070288 L FI20070288 L FI 20070288L FI 20070288 A FI20070288 A FI 20070288A FI 20070288 A FI20070288 A FI 20070288A FI 20070288 L FI20070288 L FI 20070288L
- Authority
- FI
- Finland
- Prior art keywords
- reusing
- processing
- etching solution
- etching
- solution
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
- C22B13/045—Recovery from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B25/00—Obtaining tin
- C22B25/04—Obtaining tin by wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/065—Nitric acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/30—Acidic compositions for etching other metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/346—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from semiconductor processing, e.g. waste water from polishing of wafers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
- C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Chemical Treatment Of Metals (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
CN200880011967.2A CN101668705B (zh) | 2007-04-13 | 2008-04-11 | 剥离液的处理和再利用方法 |
PCT/FI2008/050178 WO2008125728A2 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
JP2010502536A JP5091306B2 (ja) | 2007-04-13 | 2008-04-11 | 剥離液の処理および再生使用のための方法 |
CA 2682146 CA2682146C (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
DE200860002925 DE602008002925D1 (de) | 2007-04-13 | 2008-04-11 | Verfahren zur behandlung und wiederverwendung einer stripplösung |
EP20080736827 EP2152633B1 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
US12/595,445 US20100193467A1 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
AT08736827T ATE483668T1 (de) | 2007-04-13 | 2008-04-11 | Verfahren zur behandlung und wiederverwendung einer stripplösung |
KR1020097023774A KR101212755B1 (ko) | 2007-04-13 | 2008-04-11 | 스트리퍼 용액의 처리 및 재사용 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
FI20070288 | 2007-04-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20070288A0 FI20070288A0 (fi) | 2007-04-13 |
FI20070288L true FI20070288L (fi) | 2008-10-14 |
FI120052B FI120052B (fi) | 2009-06-15 |
Family
ID=38009827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100193467A1 (fi) |
EP (1) | EP2152633B1 (fi) |
JP (1) | JP5091306B2 (fi) |
KR (1) | KR101212755B1 (fi) |
CN (1) | CN101668705B (fi) |
AT (1) | ATE483668T1 (fi) |
CA (1) | CA2682146C (fi) |
DE (1) | DE602008002925D1 (fi) |
FI (1) | FI120052B (fi) |
WO (1) | WO2008125728A2 (fi) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5481233B2 (ja) * | 2010-03-04 | 2014-04-23 | Dowaメタルテック株式会社 | Snイオンを含有する廃液の再生処理方法 |
KR101143216B1 (ko) * | 2010-03-19 | 2012-05-18 | 김경선 | 폐납재로부터 고체주석화합물을 분리하는 방법 및 그로부터 고순도의 주석(Sn)을 회수하는 방법 |
CN102560118B (zh) * | 2012-01-09 | 2013-07-24 | 刘景洋 | 一种废电路板浸提液中锡铅回收方法 |
CN103436885A (zh) * | 2013-09-25 | 2013-12-11 | 深圳市瑞世兴科技有限公司 | 退锡废液的循环利用方法 |
KR101527108B1 (ko) * | 2014-06-13 | 2015-06-15 | 대진대학교 산학협력단 | 질산계 주석 함유 폐액으로부터 주석의 선택적 회수방법 |
CN104894599A (zh) * | 2015-06-23 | 2015-09-09 | 成都虹华环保科技股份有限公司 | 一种退锡废液的回收利用工艺 |
CN108383278B (zh) * | 2018-03-16 | 2019-08-09 | 深圳市祺鑫天正环保科技有限公司 | 退锡废液的处理方法 |
CN109534575A (zh) * | 2018-12-25 | 2019-03-29 | 江西遂川通明电子科技有限公司 | 一种pcb退锡废水的无损再生处理工艺 |
CN118422206B (zh) * | 2024-04-02 | 2025-02-07 | 深圳前海榕达创途化工科技股份有限公司 | 一种用于铜面退锡的护铜剂以及实现尾水全循环回用的工艺 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125605A (en) * | 1975-02-25 | 1976-11-02 | Toray Ind Inc | A method of fractional recovery of heavy metals |
JPH01312086A (ja) * | 1988-06-10 | 1989-12-15 | Hitachi Condenser Co Ltd | エッチング廃液の再生処理法 |
US4957653A (en) * | 1989-04-07 | 1990-09-18 | Macdermid, Incorporated | Composition containing alkane sulfonic acid and ferric nitrate for stripping tin or tin-lead alloy from copper surfaces, and method for stripping tin or tin-lead alloy |
EP0429044A1 (en) * | 1989-11-21 | 1991-05-29 | GC GALVANO CONSULT GmbH | Process for recovering metals from aqueous solutions |
US5505872A (en) * | 1995-05-23 | 1996-04-09 | Applied Electroless Concepts, Inc. | Solder stripper recycle and reuse |
US5755950A (en) * | 1995-06-07 | 1998-05-26 | Dulin Metals Company | Process for removing plating materials from copper-based substrates |
JPH1121681A (ja) * | 1997-07-04 | 1999-01-26 | Mec Kk | 錫または半田用剥離液の再生処理方法 |
US6290835B1 (en) * | 2000-02-07 | 2001-09-18 | Rd Chemical Company | Treatment of waste from printed circuit board production for recovery of tin and environmentally safe disposal |
TW553906B (en) * | 2002-03-21 | 2003-09-21 | Amia Co Ltd | A method for the treatment of waste tin-lead stripping solution |
US6685820B2 (en) * | 2002-04-26 | 2004-02-03 | Amia Co., Ltd. | Method for treating spent tin/lead stripping solution |
JP4071041B2 (ja) * | 2002-05-22 | 2008-04-02 | 日鉱金属株式会社 | 銅合金酸洗廃液の再生方法 |
CN1209500C (zh) * | 2002-08-01 | 2005-07-06 | 昶昕实业股份有限公司 | 去除剥锡或剥锡铅废液中铜、亚锡及亚铅离子的方法 |
JP2005105309A (ja) * | 2003-09-29 | 2005-04-21 | Toto Ltd | クロムめっき液中の銅不純物除去方法 |
FI121569B (fi) | 2005-10-14 | 2011-01-14 | Yara Suomi Oy | Menetelmä metallioksidien saostamiseksi jätevesiliuoksesta |
-
2007
- 2007-04-13 FI FI20070288A patent/FI120052B/fi not_active IP Right Cessation
-
2008
- 2008-04-11 AT AT08736827T patent/ATE483668T1/de not_active IP Right Cessation
- 2008-04-11 CN CN200880011967.2A patent/CN101668705B/zh not_active Expired - Fee Related
- 2008-04-11 JP JP2010502536A patent/JP5091306B2/ja not_active Expired - Fee Related
- 2008-04-11 CA CA 2682146 patent/CA2682146C/en not_active Expired - Fee Related
- 2008-04-11 KR KR1020097023774A patent/KR101212755B1/ko not_active Expired - Fee Related
- 2008-04-11 EP EP20080736827 patent/EP2152633B1/en not_active Not-in-force
- 2008-04-11 WO PCT/FI2008/050178 patent/WO2008125728A2/en active Application Filing
- 2008-04-11 DE DE200860002925 patent/DE602008002925D1/de active Active
- 2008-04-11 US US12/595,445 patent/US20100193467A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP5091306B2 (ja) | 2012-12-05 |
KR101212755B1 (ko) | 2012-12-14 |
CA2682146C (en) | 2012-07-31 |
CA2682146A1 (en) | 2008-10-23 |
EP2152633A2 (en) | 2010-02-17 |
DE602008002925D1 (de) | 2010-11-18 |
WO2008125728A3 (en) | 2009-03-19 |
WO2008125728A2 (en) | 2008-10-23 |
CN101668705B (zh) | 2014-12-31 |
US20100193467A1 (en) | 2010-08-05 |
ATE483668T1 (de) | 2010-10-15 |
KR20100008783A (ko) | 2010-01-26 |
EP2152633B1 (en) | 2010-10-06 |
FI20070288A0 (fi) | 2007-04-13 |
JP2010524657A (ja) | 2010-07-22 |
FI120052B (fi) | 2009-06-15 |
CN101668705A (zh) | 2010-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0923090A2 (pt) | método implementado por computador | |
BRPI0912934A2 (pt) | aparelho e método | |
BRPI0817394A2 (pt) | Método para processamento de pozzolans | |
FI20075926L (fi) | Menetelmä ja laite plasman tuottamiseksi | |
FI20095553L (fi) | Jätteenkäsittelyjärjestelmä ja menetelmä | |
BRPI0910713A2 (pt) | método e aparelhos | |
FI20075269A0 (fi) | Menetelmä ja järjestely antennin sovittamiseksi | |
FI20095554A0 (fi) | Menetelmä ja väline jätteenkäsittelyssä | |
FI20070288L (fi) | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi | |
FI20085409A0 (fi) | Menetelmä ja laite viestien käsittelemiseksi | |
IT1398433B1 (it) | Apparato e procedimento per la lavorazione di un substrato | |
BRPI0817076A2 (pt) | Sistema e método de processamento | |
FI20085158A0 (fi) | Laite ja menetelmä | |
FI20095616L (fi) | Menetelmä huokoisen tuotteen prosessoimiseksi ja huokoinen tuote | |
FI20105391A0 (fi) | Jätteenjalostusmenetelmä | |
DE112010000869T8 (de) | Plasmaverarbeitungsvorrichtung | |
FI20060498L (fi) | Menetelmä uuttoaltaan valmistamiseksi ja uuttoallas | |
IT1402390B1 (it) | Dispositivo di lavorazione e metodo di lavorazione | |
KR101652071B9 (ko) | 기판을 처리하기 위한 장치 및 방법 | |
KR101151250B9 (ko) | 플라즈마 처리 장치 및 처리 방법 | |
DE112010000717T8 (de) | Plasmaverarbeitungsvorrichtung | |
BRPI0914668A2 (pt) | método e aparelho de separação | |
FI20090326A7 (fi) | Menetelmä ja laitteisto hunajakennon käsittelemiseksi | |
KR101255763B9 (ko) | 기판 처리 방법 | |
FI20080145L (fi) | Menetelmä massan käsittelemiseksi |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: YARA SUOMI OY Free format text: YARA SUOMI OY |
|
FG | Patent granted |
Ref document number: 120052 Country of ref document: FI |
|
MM | Patent lapsed |