Class D21C : PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
Subclass 1/02: Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with water or steam
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12234602 | Apparatuses, methods and systems for yield increase in a kraft cooking plant | May 17, 22 | Feb 25, 25 | Bracell Bahia Specialty Cellulose SA |
| 12227900 | High brightness non-wood pulp | Nov 05, 21 | Feb 18, 25 | Kimberly Clark Worldwide Inc. |
| 12195782 | Hydrothermal-mechanical conversion of lignocellulosic biomass to ethanol or other fermentation products | Feb 17, 22 | Jan 14, 25 | GranBio Intellectual Property Holdings, LLC |
| 12152110 | Lignocellulosic biomass treatment method | Dec 04, 18 | Nov 26, 24 | IFP Energies Nouvelles; INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONMENT; AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT; |
| 12146262 | Non-wood pulp having high brightness and low debris | Nov 05, 21 | Nov 19, 24 | Kimberly Clark Worldwide Inc. |
| 12139853 | Reactor discharge | Apr 10, 19 | Nov 12, 24 | Valmet AB |
| 12098504 | Methods and devices for processing lignocellulosic biomass using mechanical pretreatment to enhance feedstock hydration properties | Nov 02, 17 | Sep 24, 24 | TAB HOLDING APS |
| 12098505 | System for treatment of a biomass material | Mar 22, 19 | Sep 24, 24 | Valmet AB |
| 12091817 | Reactor discharge screw | Oct 30, 19 | Sep 17, 24 | Valmet AB |
| 12091818 | Processes for producing nanocellulose, and nanocellulose compositions produced therefrom | Mar 23, 21 | Sep 17, 24 | GranBio Intellectual Property Holdings, LLC |
| 12077915 | Nanocellulose-reinforced corrugated medium | Jun 10, 22 | Sep 03, 24 | GranBio Intellectual Property Holdings, LLC |
| 12005418 | Reactor vessel for biomass material | Mar 29, 19 | Jun 11, 24 | Valmet AB |
| 12000087 | Combustion of streams derived from hot water extraction of wood material | Dec 28, 21 | Jun 04, 24 | Cascades Canada ULC |
| 11959194 | Method for producing shortened anionically modified cellulose fibers | Jun 06, 19 | Apr 16, 24 | KAO Corporation |
| 11939721 | Method for non-catalytic delignification of biomass inside an apparatus | Jan 13, 20 | Mar 26, 24 | LIGNOPURA AGROTECH PVT LTD. |
| 11834523 | Nanolignocellulose compositions and processes to produce these compositions | Jan 06, 21 | Dec 05, 23 | GranBio Intellectual Property Holdings, LLC |
| 11814790 | Dec 15, 18 | Nov 14, 23 | EXEGI IP MANAGEMENT B.V. | |
| 11692000 | Methods of making specialized lignin and lignin products from biomass | Dec 21, 20 | Jul 04, 23 | Apalta Patents OÜ |
| 11674264 | System for treatment of a biomass material and a method for connecting a valve to a transporting pipe | Apr 09, 19 | Jun 13, 23 | Valmet AB |
| 11661704 | Dissolving wood pulps and methods of making and using the same | Jul 29, 21 | May 30, 23 | GP Cellulose GMbH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0059,709 | NANOCELLULOSE-REINFORCED CORRUGATED MEDIUM | Aug 30, 24 | Feb 20, 25 | Not available |
| 2025/0034,806 | REACTOR DISCHARGE | Oct 11, 24 | Jan 30, 25 | Valmet AB |
| 2025/0012,010 | NON-WOOD PULP HAVING HIGH BRIGHTNESS AND LOW DEBRIS | Sep 17, 24 | Jan 09, 25 | Not available |
| 2024/0401,269 | THERMAL-PRESSURE HYDROLYSIS SUSTAINABLE BIOMASS FOR THE PRODUCTION OF ALTERNATIVE PROTEINS AND BIO-MATERIALS | Dec 21, 22 | Dec 05, 24 | THERMO PRESSURE TECHNOLOGIES LEMITED |
| 2024/0392,500 | METHODS AND DEVICES FOR PROCESSING LIGNOCELLULOSIC BIOMASS USING MECHANICAL PRETREATMENT TO ENHANCE FEEDSTOCK HYDRATION PROPERTIES | Aug 02, 24 | Nov 28, 24 | Not available |
| 2024/0309,586 | A METHOD FOR PRODUCING A CHEMI-THERMOMECHANICAL FIBROUS PULP FROM NON-WOOD PLANT RAW MATERIALS AND AN AUTOMATED LINE FOR PRODUCING SAID PULP BY SAID METHOD | Mar 22, 23 | Sep 19, 24 | Not available |
| 2024/0295,074 | METHODS FOR PRODUCING PULP AND PAPER PRODUCTS FROM PLANTS HAVING BAST AND HURD FIBERS | Dec 30, 21 | Sep 05, 24 | Not available |
| 2024/0279,406 | NEW METHOD | Jun 07, 22 | Aug 22, 24 | Not available |
| 2024/0229,353 | METHOD AND SYSTEM FOR CONTINOUSLY TREATING BIOMASS MATERIAL | May 03, 22 | Jul 11, 24 | Valmet AB |
| 2024/0226,841 | Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials | Jun 13, 16 | Jul 11, 24 | Not available |
| 2024/0131,489 | Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials | Jun 12, 16 | Apr 25, 24 | Not available |
| 2024/0102,239 | FIBROUS BODY PROCESSING APPARATUS | Sep 26, 23 | Mar 28, 24 | Not available |
| 2024/0102,240 | FIBROUS BODY PROCESSING APPARATUS | Sep 26, 23 | Mar 28, 24 | Not available |
| 2023/0098,986 | ARRANGEMENT AND METHOD FOR PRETREATMENT OF BIOMASS | Feb 02, 21 | Mar 30, 23 | Not available |
| 2023/0002,971 | METHOD AND PLANT FOR OBTAINING CELLULOSE FIBRES | Nov 27, 20 | Jan 05, 23 | LEINICH BETEILIGUNGEN GMBH |
| 2022/0298,725 | CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOSIC MATERIAL | May 10, 19 | Sep 22, 22 | Not available |
| 2020/0157,739 | BIOMASS, THERMAL PRESSURE HYDROLYSIS AND ANAEROBIC DIGESTION | Dec 19, 16 | May 21, 20 | Not available |
| 2020/0123,706 | Method For Recovering Concentrated Hydrolysate After Hydrolysis Of Cellulose Material | Feb 16, 16 | Apr 23, 20 | Valmet AB |
| 2019/0345,671 | METHOD FOR TREATING BIOMASS AND DEVICE FOR TREATING BIOMASS | Dec 07, 17 | Nov 14, 19 | Not available |
| 2019/0249,363 | METHOD FOR EXTRACTING CELLUSOSE, HEMICELLULOSE AND LIGNIN FROM LIGNOCELLULOSE FROM PLANT BIOMASS | Oct 06, 17 | Aug 15, 19 | Clariant International Ltd. |
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