Class D21B : FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
Subclass 1/34: Fibrous raw materials or their mechanical treatment (beaters D21D 1/00) by dividing raw materials into small particles, e.g. fibres (breaking-up or cutting wood or the like by dry methods B27L; disintegrating peat C10F 7/02; obtaining fibres mechanically for spinning from rags, peat, or the like D01B) by wet methods, by the use of steam Defibrating by other means Kneading or mixing; Pulpers
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12163283 | Method and apparatus for treating lignocellulosic material | Jun 26, 20 | Dec 10, 24 | Sustainable Fiber Technologies, LLC |
| 12139852 | Wet pulp material processing machine | Feb 14, 20 | Nov 12, 24 | TAIZEN CO., LTD. |
| 12012694 | Pulper for circulating a fibrous stock suspension | Oct 21, 20 | Jun 18, 24 | Voith Patent GmbH |
| 11898308 | Process to recover a portion of post-recycling municipal solid waste | Aug 05, 20 | Feb 13, 24 | ANAERGIA INC. |
| 11859347 | Method for predicting or controlling microbial status of a paper or board making process | Dec 07, 18 | Jan 02, 24 | Kemira Oyj |
| 11673172 | Method and system for recovering pulp fibers from used absorbent articles | Jul 26, 18 | Jun 13, 23 | Unicharm Corporation |
| 11498980 | Method for producing cellulose nanofiber and apparatus for producing cellulose nanofiber | Sep 11, 19 | Nov 15, 22 | Saiden Chemical Industry Co. Ltd. |
| 11486089 | High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber | Oct 05, 20 | Nov 01, 22 | GPCP IP Holdings LLC |
| 11371184 | Method for recycling baled waste material | Sep 22, 15 | Jun 28, 22 | JUNO LLC |
| 11352745 | Methods of staging, processing, and transporting biomasses | Jan 12, 16 | Jun 07, 22 | MATERA, LLC |
| 11352749 | Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine | Jun 29, 20 | Jun 07, 22 | WETEND TECHNOLOGY OY; VALMET TECHNOLOGIES OY; |
| 11291961 | Stirring apparatus | Jun 16, 20 | Apr 05, 22 | SEIKO EPSON CORPORATION |
| 11286619 | Bale of virgin cellulose and cellulose ester | Jul 26, 19 | Mar 29, 22 | Eastman Chemical Company |
| 11230811 | Recycle bale comprising cellulose ester | Jul 26, 19 | Jan 25, 22 | Eastman Chemical Company |
| 11208762 | Method for separating fibers | Dec 15, 17 | Dec 28, 21 | REPULPING TECHNOLOGY GMBH & CO. KG |
| 11174101 | Method for the destruction of data carriers, collection vehicle and use of a pulper | Feb 06, 14 | Nov 16, 21 | RHENUS DATA OFFICE AG |
| 11098451 | Methods for liberating trichome fibers from portions of a host plant | Apr 19, 19 | Aug 24, 21 | The Procter & Gamble Company |
| 11090591 | Swirling flow generation device and deposition device | Dec 26, 19 | Aug 17, 21 | SEIKO EPSON CORPORATION |
| 11028532 | Device and process for the production of nanocellulose | May 08, 19 | Jun 08, 21 | JAROLIM FASERTECHNIK GmbH |
| 10821408 | High-concentration mixer for producing a cellulose suspension having a high cellulose concentration | Oct 04, 16 | Nov 03, 20 | Chemiefaser Lenzing Aktiengesellschaft |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0075,428 | Methods for Liberating Trichome Fibers from Portions of a Host Plant | Nov 18, 24 | Mar 06, 25 | Not available |
| 2025/0073,655 | STIRRING DEVICE, FIBER STRUCTURE MANUFACTURING APPARATUS, AND METHOD OF PRODUCING FIBER STRUCTURE | Aug 29, 24 | Mar 06, 25 | Not available |
| 2024/0376,674 | BINDER COMPOSITION AND METHOD COMPRISING MICROFIBRILLATED CELLULOSE AND RECYCLED CELLULOSIC MATERIALS | Jul 22, 24 | Nov 14, 24 | FiberLean Technologies Limited |
| 2024/0368,353 | LIGNIN REMOVAL FROM LIGNOCELLULOSIC WASTE USING REJECTED BRINE SOLUTION | May 04, 23 | Nov 07, 24 | Not available |
| 2024/0229,352 | AN ACCEPT TANK MIXING ARRANGEMENT | May 20, 22 | Jul 11, 24 | Not available |
| 2024/0191,430 | METHOD OF MAKING FIRE RETARDANT MATERIALS AND RELATED PRODUCTS | Jul 18, 23 | Jun 13, 24 | ClLEANFIBER INC.. |
| 2024/0173,683 | PAPER STOCK MODIFICATION DEVICE | Apr 20, 21 | May 30, 24 | Not available |
| 2024/0167,223 | SHEET MANUFACTURING APPARATUS | Nov 20, 23 | May 23, 24 | Not available |
| 2024/0011,224 | PULP MOLD COMPRISING SEAWEED, AND PRODUCTION METHOD FOR SAME | Dec 02, 21 | Jan 11, 24 | MARINE INNOVATION, INC. |
| 2023/0092,526 | MOBILE DISPERSION SYSTEM AND METHODS FOR THE RESUSPENSION OF PARTIALLY-DRIED MICROFIBRILLATED CELLULOSE | Sep 07, 22 | Mar 23, 23 | FiberLean Technologies Limited |
| 2021/0238,800 | METHOD FOR PREPARING CHITOSAN AND DERIVATIVE NANOFIBER THEREOF BY MECHANICAL MEANS | Oct 31, 18 | Aug 05, 21 | SOUTH CHINA UNIVERSITY OF TECHNOLOGY |
| 2021/0131,039 | BINDER COMPOSITION AND METHOD COMPRISING MICROFIBRILLATED CELLULOSE AND RECYCLED CELLULOSIC MATERIALS | Oct 29, 20 | May 06, 21 | Not available |
| 2020/0362,513 | PROCESS TO RECOVER A PORTION OF POST-RECYCLING MUNICIPAL SOLID WASTE | Aug 05, 20 | Nov 19, 20 | Not available |
| 2018/0345,234 | HIGH-CONCENTRATION MIXER FOR PRODUCING A CELLULOSE SUSPENSION HAVING A HIGH CELLULOSE CONCENTRATION | Oct 04, 16 | Dec 06, 18 | Not available |
| 2018/0195,236 | PROCESS TO RECOVER A PORTION OF POST-RECYCLING MUNICIPAL SOLID WASTE | Jan 10, 18 | Jul 12, 18 | Not available |
| 2017/0226,693 | PROCESSOR, DEVICE COMPRISING A PROCESSOR, CYCLONE AND METHOD FOR TREATING A MATERIAL MIXTURE | Aug 14, 15 | Aug 10, 17 | CODUKTE BOLTERSDORF |
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