sulfur dioxide sulfurous acid bisulfites sulfites

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CPC
D21C3/06

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DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C3/00Pulping cellulose-containing materials

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D21C3/06sulfur dioxide sulfurous acid bisulfites sulfites

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Arylsulfonic acid—modified sulfuric acid and uses thereof
- Patent number 12,123,138
- Issue date Oct 22, 2024
- SixRing Inc.
- Clay Purdy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Common preparation of lignocellulosic feedstock and a product conta...
- Patent number 12,116,729
- Issue date Oct 15, 2024
- Lenzing Aktiengesellschaft
- Richard Herchl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Processes for producing nanocellulose, and nanocellulose compositio...
- Patent number 12,091,818
- Issue date Sep 17, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Nanocellulose production co-located at a pulp and paper mill
- Patent number 12,077,910
- Issue date Sep 3, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dual surfactant digester additive composition and a method for enha...
- Patent number 11,970,816
- Issue date Apr 30, 2024
- Chemstone, Inc.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 11,932,706
- Issue date Mar 19, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nanolignocellulose compositions and processes to produce these comp...
- Patent number 11,834,523
- Issue date Dec 5, 2023
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Process for the production of cellulose, lignocellulosic sugars, li...
- Patent number 11,306,113
- Issue date Apr 19, 2022
- American Process International LLC
- Mikhail Iakovlev
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dual surfactant digester additive composition and a method for enha...
- Patent number 11,091,875
- Issue date Aug 17, 2021
- Chemstone, Inc.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sulfur dioxide and/or sulfurous acid pretreatment with sulfur dioxi...
- Patent number 10,995,314
- Issue date May 4, 2021
- Iogen Corporation
- Brian Foody
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Drying/transportation and releasing MFC
- Patent number 10,947,670
- Issue date Mar 16, 2021
- Stora Enso Oyj
- Jari Räsänen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 10,906,994
- Issue date Feb 2, 2021
- GranBio Intellectual Property Holdings, LLC
- Kimberly Nelson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Nanocellulose
- Patent number 10,704,197
- Issue date Jul 7, 2020
- The University of Queensland
- Darren James Martin
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Lignocellulosic biomass conversion
- Patent number 10,648,008
- Issue date May 12, 2020
- Borregaard Industries, Limited, Norge
- Anders Sjoede
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing increased bulk pulp fibers, pulp fibers obtai...
- Patent number 10,280,559
- Issue date May 7, 2019
- International Paper Company
- Gopal Goyal
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 10,093,748
- Issue date Oct 9, 2018
- API Intellectual Property Holdings, LLC
- Kimberly Nelson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Integration of non-woody biorefining at pulp and paper plants
- Patent number 9,856,605
- Issue date Jan 2, 2018
- API Intellectual Property Holdings, LLC
- Theodora Retsina
- C13 - SUGAR INDUSTRY
Information Patent Grant
Continuous process for production of cellulose pulp from grass-like...
- Patent number 9,777,429
- Issue date Oct 3, 2017
- Marinko Mikulic
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Treatment of biomass to dissolve lignin with ionic liquid composition
- Patent number 9,765,478
- Issue date Sep 19, 2017
- Imperial Innovations Ltd.
- Agnieszka Brandt
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Biomass fractionation processes employing sulfur dioxide
- Patent number 9,631,316
- Issue date Apr 25, 2017
- API Intellectual Property Holdings, LLC
- Theodora Retsina
- C13 - SUGAR INDUSTRY
Information Patent Grant
Pre-treatment of cellulosic material
- Patent number 9,528,129
- Issue date Dec 27, 2016
- Sekab E-Technology AB
- Torbjörn Van Der Meulen
- C13 - SUGAR INDUSTRY
Information Patent Grant
Cross-linked glycerol based polymers as digestion aids for improvin...
- Patent number 9,416,490
- Issue date Aug 16, 2016
- Nalco Company
- Prasad Y. Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sulfite-based processes for producing nanocellulose, and compositio...
- Patent number 9,399,840
- Issue date Jul 26, 2016
- API Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Nanocellulose production using lignosulfonic acid
- Patent number 9,322,134
- Issue date Apr 26, 2016
- API Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 9,322,133
- Issue date Apr 26, 2016
- API Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Processes and apparatus for producing nanocellulose, and compositio...
- Patent number 9,187,865
- Issue date Nov 17, 2015
- API Intellectual Property Holdings, LLC
- Kimberly Nelson
- C13 - SUGAR INDUSTRY
Information Patent Grant
Use of sodium dithionite in pulping
- Patent number 9,121,135
- Issue date Sep 1, 2015
- BASF SE
- Stefan Erren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Conditioning of SO2-ethanol-water spent liquor for fermentation by...
- Patent number 9,012,188
- Issue date Apr 21, 2015
- API Intellectual Property Holdings, LLC
- Adriaan Van Heiningen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Separation of lignin from hydrolyzate
- Patent number 8,864,941
- Issue date Oct 21, 2014
- API Intellectual Property Holdings, LLC
- Thoedora Retsina
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pre-treatment of cellulosic material
- Patent number 8,834,633
- Issue date Sep 16, 2014
- Sekab E-Technology AB
- Torbjörn Van Der Meulen
- C13 - SUGAR INDUSTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20240247081
- Publication date Jul 25, 2024
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
A HIGH YIELD COOKING METHOD
- Publication number 20230265611
- Publication date Aug 24, 2023
- AMPPC Finland Oy
- Matti KURKI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
A COOKING METHOD
- Publication number 20230265612
- Publication date Aug 24, 2023
- AMPPC Finland Oy
- Matti KURKI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD TO TREAT A CONDENSATE IN A PULPING PROCESS
- Publication number 20230265610
- Publication date Aug 24, 2023
- SUZANO S.A.
- Dimas DE MORAIS
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR CO-PRODUCING MOLDED FOOD-CONTAINER PULP AND FULVIC ACID...
- Publication number 20230220623
- Publication date Jul 13, 2023
- Bo BAI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ARYLSULFONIC ACID - MODIFIED SULFURIC ACID AND USES THEREOF
- Publication number 20220267956
- Publication date Aug 25, 2022
- SixRing Inc.
- Clay PURDY
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
COMMON PREPARATION OF LIGNOCELLULOSIC FEEDSTOCK AND A PRODUCT CONTA...
- Publication number 20220243399
- Publication date Aug 4, 2022
- LENZING AKTIENGESELLSCHAFT
- Richard HERCHL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CHEMICALLY MODIFIED LIGNIN AS REDUCING AGENT FOR ENZYMATIC HYDROLYS...
- Publication number 20220090155
- Publication date Mar 24, 2022
- BORREGAARD AS
- Oskar Bengtsson
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20220034038
- Publication date Feb 3, 2022
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
Dual Surfactant Digester Additive Composition and a Method for Enha...
- Publication number 20210372048
- Publication date Dec 2, 2021
- CHEMSTONE, INC.
- Michael M. Blackstone
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL
- Publication number 20210340706
- Publication date Nov 4, 2021
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- B82 - NANO-TECHNOLOGY
Information Patent Application
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20210284757
- Publication date Sep 16, 2021
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...
- Publication number 20210277151
- Publication date Sep 9, 2021
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MODIFIED ALKANESULFONIC ACID AND USES THEREOF
- Publication number 20210269971
- Publication date Sep 2, 2021
- SixRing Inc.
- Clay Purdy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...
- Publication number 20210221919
- Publication date Jul 22, 2021
- GranBio Intellectual Property Holdings, LLC
- Kimberly NELSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
DEGUMMING AND SCOURING OF BAST MATERIAL FOR PRODUCTION OF TEXTILE A...
- Publication number 20210148009
- Publication date May 20, 2021
- Renaissance Fiber LLC
- Michael S. Long
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20190271114
- Publication date Sep 5, 2019
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for improved pulping using an environmentally friendly pulpi...
- Publication number 20190226142
- Publication date Jul 25, 2019
- Jim Constantacos
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
DRYING/TRANSPORTATION AND RELEASING MFC
- Publication number 20190127911
- Publication date May 2, 2019
- STORA ENSO OYJ
- Jari Räsänen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20190100604
- Publication date Apr 4, 2019
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...
- Publication number 20180298113
- Publication date Oct 18, 2018
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL
- Publication number 20180251941
- Publication date Sep 6, 2018
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- B82 - NANO-TECHNOLOGY
Information Patent Application
SULFUR DIOXIDE AND/OR SULFUROUS ACID PRETREATMENT WITH SULFUR DIOXI...
- Publication number 20180037863
- Publication date Feb 8, 2018
- Iogen Corporation
- Brian Foody
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...
- Publication number 20170210826
- Publication date Jul 27, 2017
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20170210827
- Publication date Jul 27, 2017
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
A CONTINUOUS PROCESS FOR PRODUCTION OF CELLULOSE PULP FROM GRASS-LI...
- Publication number 20170107665
- Publication date Apr 20, 2017
- Marinko Mikulic
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
INTEGRATED PROCESS FOR PRODUCING CELLULOSIC PULP AND POLYOLS STREAM
- Publication number 20160362353
- Publication date Dec 15, 2016
- Biochemtex S.p.A
- Marco BERNARDI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
NANOCELLULOSE
- Publication number 20160289893
- Publication date Oct 6, 2016
- THE UNIVERSITY OF QUEENSLAND
- Darren James MARTIN
- B82 - NANO-TECHNOLOGY
Information Patent Application
SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...
- Publication number 20160281298
- Publication date Sep 29, 2016
- API Intellectual Property Holdings, LLC
- Kimberly NELSON
- C13 - SUGAR INDUSTRY
Information Patent Application
METHOD FOR PRODUCING CELLULOSE
- Publication number 20160244913
- Publication date Aug 25, 2016
- Mitsubishi Gas Chemical Company, Inc.
- Takamitsu TSURUGA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

sulfur dioxide sulfurous acid bisulfites sulfites

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Arylsulfonic acid—modified sulfuric acid and uses thereof

Common preparation of lignocellulosic feedstock and a product conta...

Processes for producing nanocellulose, and nanocellulose compositio...

Nanocellulose production co-located at a pulp and paper mill

Dual surfactant digester additive composition and a method for enha...

Processes and apparatus for producing nanocellulose, and compositio...

Nanolignocellulose compositions and processes to produce these comp...

Process for the production of cellulose, lignocellulosic sugars, li...

Dual surfactant digester additive composition and a method for enha...

Sulfur dioxide and/or sulfurous acid pretreatment with sulfur dioxi...

Drying/transportation and releasing MFC

Processes and apparatus for producing nanocellulose, and compositio...

Nanocellulose

Lignocellulosic biomass conversion

Process for producing increased bulk pulp fibers, pulp fibers obtai...

Processes and apparatus for producing nanocellulose, and compositio...

Integration of non-woody biorefining at pulp and paper plants

Continuous process for production of cellulose pulp from grass-like...

Treatment of biomass to dissolve lignin with ionic liquid composition

Biomass fractionation processes employing sulfur dioxide

Pre-treatment of cellulosic material

Cross-linked glycerol based polymers as digestion aids for improvin...

Sulfite-based processes for producing nanocellulose, and compositio...

Nanocellulose production using lignosulfonic acid

Processes and apparatus for producing nanocellulose, and compositio...

Processes and apparatus for producing nanocellulose, and compositio...

Use of sodium dithionite in pulping

Conditioning of SO2-ethanol-water spent liquor for fermentation by...

Separation of lignin from hydrolyzate

Pre-treatment of cellulosic material

Patents Applicationslast 30 patents

PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

A HIGH YIELD COOKING METHOD

A COOKING METHOD

METHOD TO TREAT A CONDENSATE IN A PULPING PROCESS

METHOD FOR CO-PRODUCING MOLDED FOOD-CONTAINER PULP AND FULVIC ACID...

ARYLSULFONIC ACID - MODIFIED SULFURIC ACID AND USES THEREOF

COMMON PREPARATION OF LIGNOCELLULOSIC FEEDSTOCK AND A PRODUCT CONTA...

CHEMICALLY MODIFIED LIGNIN AS REDUCING AGENT FOR ENZYMATIC HYDROLYS...

SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

Dual Surfactant Digester Additive Composition and a Method for Enha...

NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL

PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...

MODIFIED ALKANESULFONIC ACID AND USES THEREOF

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...

DEGUMMING AND SCOURING OF BAST MATERIAL FOR PRODUCTION OF TEXTILE A...

SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

Method for improved pulping using an environmentally friendly pulpi...

DRYING/TRANSPORTATION AND RELEASING MFC

PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

NANOLIGNOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE THESE COMP...

NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL

SULFUR DIOXIDE AND/OR SULFUROUS ACID PRETREATMENT WITH SULFUR DIOXI...

PROCESSES FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE COMPOSITIO...

PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

A CONTINUOUS PROCESS FOR PRODUCTION OF CELLULOSE PULP FROM GRASS-LI...

INTEGRATED PROCESS FOR PRODUCING CELLULOSIC PULP AND POLYOLS STREAM

NANOCELLULOSE

SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIO...

METHOD FOR PRODUCING CELLULOSE