GB2459484B - Dual nitrogen expansion process - Google Patents

Dual nitrogen expansion process

Info

Publication number
GB2459484B
GB2459484B GB0807447.8A GB0807447A GB2459484B GB 2459484 B GB2459484 B GB 2459484B GB 0807447 A GB0807447 A GB 0807447A GB 2459484 B GB2459484 B GB 2459484B
Authority
GB
United Kingdom
Prior art keywords
expansion process
nitrogen expansion
dual nitrogen
dual
nitrogen
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.)
Expired - Fee Related
Application number
GB0807447.8A
Other versions
GB2459484A (en
GB0807447D0 (en
Inventor
Bengt Olav Neeraas
Tor Erking Sandvik
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.)
Equinor ASA
Original Assignee
Statoil ASA
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 Statoil ASA filed Critical Statoil ASA
Priority to GB0807447.8A priority Critical patent/GB2459484B/en
Publication of GB0807447D0 publication Critical patent/GB0807447D0/en
Priority to BRPI0911549A priority patent/BRPI0911549A8/en
Priority to CA2721494A priority patent/CA2721494A1/en
Priority to US12/989,117 priority patent/US20110113825A1/en
Priority to RU2010147631/06A priority patent/RU2496066C2/en
Priority to MX2010011500A priority patent/MX2010011500A/en
Priority to PCT/GB2009/001038 priority patent/WO2009130466A2/en
Priority to AU2009239763A priority patent/AU2009239763B2/en
Publication of GB2459484A publication Critical patent/GB2459484A/en
Priority to NO20101634A priority patent/NO20101634A1/en
Application granted granted Critical
Publication of GB2459484B publication Critical patent/GB2459484B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0277—Offshore use, e.g. during shipping
    • F25J1/0278—Unit being stationary, e.g. on floating barge or fixed platform
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/005—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by expansion of a gaseous refrigerant stream with extraction of work
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/007—Primary atmospheric gases, mixtures thereof
    • F25J1/0072—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0203—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle
    • F25J1/0204—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle as a single flow SCR cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
    • F25J1/0288—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings using work extraction by mechanical coupling of compression and expansion of the refrigerant, so-called companders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0294—Multiple compressor casings/strings in parallel, e.g. split arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
    • F25J2220/62—Separating low boiling components, e.g. He, H2, N2, Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/14—External refrigeration with work-producing gas expansion loop
    • F25J2270/16—External refrigeration with work-producing gas expansion loop with mutliple gas expansion loops of the same refrigerant

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)
GB0807447.8A 2008-04-23 2008-04-23 Dual nitrogen expansion process Expired - Fee Related GB2459484B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB0807447.8A GB2459484B (en) 2008-04-23 2008-04-23 Dual nitrogen expansion process
PCT/GB2009/001038 WO2009130466A2 (en) 2008-04-23 2009-04-23 Dual nitrogen expansion process
CA2721494A CA2721494A1 (en) 2008-04-23 2009-04-23 Dual nitrogen expansion process
US12/989,117 US20110113825A1 (en) 2008-04-23 2009-04-23 Dual nitrogen expansion process
RU2010147631/06A RU2496066C2 (en) 2008-04-23 2009-04-23 Method of nitrogen double expansion
MX2010011500A MX2010011500A (en) 2008-04-23 2009-04-23 Dual nitrogen expansion process.
BRPI0911549A BRPI0911549A8 (en) 2008-04-23 2009-04-23 DOUBLE NITROGEN EXPANSION PROCESS
AU2009239763A AU2009239763B2 (en) 2008-04-23 2009-04-23 Dual nitrogen expansion process
NO20101634A NO20101634A1 (en) 2008-04-23 2010-11-19 Two-part nitrogen expansion process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0807447.8A GB2459484B (en) 2008-04-23 2008-04-23 Dual nitrogen expansion process

Publications (3)

Publication Number Publication Date
GB0807447D0 GB0807447D0 (en) 2008-05-28
GB2459484A GB2459484A (en) 2009-10-28
GB2459484B true GB2459484B (en) 2012-05-16

Family

ID=39494141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0807447.8A Expired - Fee Related GB2459484B (en) 2008-04-23 2008-04-23 Dual nitrogen expansion process

Country Status (9)

Country Link
US (1) US20110113825A1 (en)
AU (1) AU2009239763B2 (en)
BR (1) BRPI0911549A8 (en)
CA (1) CA2721494A1 (en)
GB (1) GB2459484B (en)
MX (1) MX2010011500A (en)
NO (1) NO20101634A1 (en)
RU (1) RU2496066C2 (en)
WO (1) WO2009130466A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009117787A2 (en) * 2008-09-19 2009-10-01 Woodside Energy Limited Mixed refrigerant compression circuit
US8464551B2 (en) * 2008-11-18 2013-06-18 Air Products And Chemicals, Inc. Liquefaction method and system
KR101145303B1 (en) 2010-01-04 2012-05-14 한국과학기술원 Natural gas liquefaction method and equipment for LNG FPSO
FR2977015B1 (en) 2011-06-24 2015-07-03 Saipem Sa METHOD FOR LIQUEFACTING NATURAL GAS WITH TRIPLE FIRM CIRCUIT OF REFRIGERATING GAS
AU2012324797C1 (en) 2011-10-21 2018-08-16 Single Buoy Moorings Inc. Multi nitrogen expansion process for LNG production
JP5943722B2 (en) * 2012-06-08 2016-07-05 三菱重工業株式会社 Defect determination apparatus, radiation imaging system, and defect determination method
US8646289B1 (en) * 2013-03-20 2014-02-11 Flng, Llc Method for offshore liquefaction
US8683823B1 (en) * 2013-03-20 2014-04-01 Flng, Llc System for offshore liquefaction
CN105737516A (en) * 2016-04-18 2016-07-06 中国寰球工程公司 System and method for liquefying natural gas by mixed refrigerant precooling and nitrogen expansion
FR3053771B1 (en) 2016-07-06 2019-07-19 Saipem S.P.A. METHOD FOR LIQUEFACTING NATURAL GAS AND RECOVERING LIQUID EVENTS OF NATURAL GAS COMPRISING TWO NATURAL GAS SEMI-OPENING REFRIGERANT CYCLES AND A REFRIGERANT GAS REFRIGERANT CYCLE
CN106621684B (en) * 2016-12-13 2019-09-27 大连欧科膜技术工程有限公司 A kind of polyolefin tail recovery method
JP7229230B2 (en) * 2018-03-27 2023-02-27 大陽日酸株式会社 Natural gas liquefaction device and natural gas liquefaction method
US10866022B2 (en) * 2018-04-27 2020-12-15 Air Products And Chemicals, Inc. Method and system for cooling a hydrocarbon stream using a gas phase refrigerant
US10788261B2 (en) 2018-04-27 2020-09-29 Air Products And Chemicals, Inc. Method and system for cooling a hydrocarbon stream using a gas phase refrigerant
CN112556446B (en) * 2020-12-08 2022-08-19 江苏科技大学 Oil gas condensation recovery system of crude oil tanker and working method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768912A (en) * 1994-04-05 1998-06-23 Dubar; Christopher Alfred Liquefaction process
US6446465B1 (en) * 1997-12-11 2002-09-10 Bhp Petroleum Pty, Ltd. Liquefaction process and apparatus
US20050056051A1 (en) * 2003-09-17 2005-03-17 Roberts Mark Julian Hybrid gas liquefaction cycle with multiple expanders

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194025A (en) * 1963-01-14 1965-07-13 Phillips Petroleum Co Gas liquefactions by multiple expansion refrigeration
US4846862A (en) * 1988-09-06 1989-07-11 Air Products And Chemicals, Inc. Reliquefaction of boil-off from liquefied natural gas
DE4440406C1 (en) * 1994-11-11 1996-04-04 Linde Ag Process for liquefying a pressurized hydrocarbon-rich fraction
AU718068B2 (en) * 1995-10-05 2000-04-06 Bhp Petroleum Pty. Ltd. Liquefaction process
DE19612173C1 (en) * 1996-03-27 1997-05-28 Linde Ag Procedure for liquefaction of hydrocarbon rich process flow, especially natural gas
DZ2535A1 (en) * 1997-06-20 2003-01-08 Exxon Production Research Co Advanced process for liquefying natural gas.
RU2137067C1 (en) * 1997-07-17 1999-09-10 Закрытое акционерное общество "Криогенная технология" Natural gas liquefaction plant
GB0006265D0 (en) * 2000-03-15 2000-05-03 Statoil Natural gas liquefaction process
US20080016910A1 (en) * 2006-07-21 2008-01-24 Adam Adrian Brostow Integrated NGL recovery in the production of liquefied natural gas
DE102006039889A1 (en) * 2006-08-25 2008-02-28 Linde Ag Process for liquefying a hydrocarbon-rich stream
US8464551B2 (en) * 2008-11-18 2013-06-18 Air Products And Chemicals, Inc. Liquefaction method and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768912A (en) * 1994-04-05 1998-06-23 Dubar; Christopher Alfred Liquefaction process
US6446465B1 (en) * 1997-12-11 2002-09-10 Bhp Petroleum Pty, Ltd. Liquefaction process and apparatus
US20050056051A1 (en) * 2003-09-17 2005-03-17 Roberts Mark Julian Hybrid gas liquefaction cycle with multiple expanders

Also Published As

Publication number Publication date
RU2010147631A (en) 2012-05-27
WO2009130466A2 (en) 2009-10-29
BRPI0911549A2 (en) 2015-10-13
MX2010011500A (en) 2011-04-21
WO2009130466A3 (en) 2013-09-12
US20110113825A1 (en) 2011-05-19
GB2459484A (en) 2009-10-28
RU2496066C2 (en) 2013-10-20
AU2009239763B2 (en) 2014-03-20
BRPI0911549A8 (en) 2017-04-18
NO20101634A1 (en) 2011-01-24
CA2721494A1 (en) 2009-10-29
GB0807447D0 (en) 2008-05-28
AU2009239763A1 (en) 2009-10-29

Similar Documents

Publication Publication Date Title
GB2459484B (en) Dual nitrogen expansion process
GB0806422D0 (en) Process
GB0806419D0 (en) Process
GB0808836D0 (en) Process
GB0814519D0 (en) Process
GB0816432D0 (en) Process
GB0812742D0 (en) Process
GB0817021D0 (en) Process
GB0814053D0 (en) Process
GB0801209D0 (en) Process
GB0803669D0 (en) Process
GB0801580D0 (en) Process
GB0813598D0 (en) Process
GB0813433D0 (en) Process
GB0800875D0 (en) Process
GB0816258D0 (en) Process
GB0812400D0 (en) Process
GB0814912D0 (en) Process
GB0811851D0 (en) Process
GB0816095D0 (en) Process
GB0807161D0 (en) Process
GB0803960D0 (en) Process
GB0808764D0 (en) Process
GB0808357D0 (en) Process
GB0812919D0 (en) Process

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20130905 AND 20130911

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160423