Class D21C : PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
Subclass 1/06: Pretreatment of the finely-divided materials before digesting (of waste paper D21C 5/02) with alkaline reacting compounds
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11993895 | Method of feeding wood chips to a prehydrolysis reactor | Oct 02, 19 | May 28, 24 | Andritz Oy |
| 11932989 | Process for producing refined cotton with high polymerization degree | Aug 10, 22 | Mar 19, 24 | HUBEI JINHANJIANG REFINED COTTON CO., LTD. |
| 11919973 | Method of producing bioplastic granules from olive pit waste (prina) | May 05, 20 | Mar 05, 24 | Yildiz Teknik Universitesi; BIOLIVE BIYOLOJIK VE KIMYASAL TEKNOLOJILER SANAYI VE TICARET ANONIM SIRKETI; |
| 11572513 | Integrated waste conversion system and method | Sep 17, 18 | Feb 07, 23 | YMIR TECHNOLOGIES EHF. |
| 11566376 | Method for preparing unbleached biomechanical pulp from straw | Apr 29, 19 | Jan 31, 23 | QILU UNIVERSITY OF TECHNOLOGY |
| 11332768 | Methods for hydrolysing lignocellulosic material | Jul 10, 15 | May 17, 22 | LEAF SCIENCES PTY LTD |
| 11180891 | Natural fiber reinforced composite panel and method | Dec 13, 18 | Nov 23, 21 | The Regents of the University of Michigan; OPTIMAL, INC.; |
| 10961552 | Process for the production of an organic acid from a lignocellulosic feedstock | Sep 06, 17 | Mar 30, 21 | RISE Innventia AB |
| 10793647 | and composites therefrom | May 21, 18 | Oct 06, 20 | Case Western Reserve University |
| 10648008 | Lignocellulosic biomass conversion | Dec 16, 09 | May 12, 20 | Borregaard Industries Limited Norge |
| 10400092 | Cellulose platelet compositions, methods of preparing cellulose platelet compositions and products comprising same | Nov 15, 17 | Sep 03, 19 | CELLUCOMP LIMITED; Cosun Biobased Products B.V.; |
| 10266856 | Method for the preparation of lactic acid | Jul 28, 15 | Apr 23, 19 | Purac Biochem BV |
| 10240171 | Preparation of lactic acid and/or a lactate salt from lignocellulosic material by separate saccharification and fermentation steps | Jul 28, 15 | Mar 26, 19 | Purac Biochem B.V. |
| 10233592 | Method for processing straw | Oct 02, 15 | Mar 19, 19 | NAFICI ENVIRONMENTAL RESEARCH |
| 10151063 | Cost efficient kraft cooking method using polysulfide cooking liquor | Aug 26, 14 | Dec 11, 18 | Valmet AB |
| 10000578 | and composites therefrom | Dec 19, 14 | Jun 19, 18 | Case Western Reserve University |
| 9938663 | Methods for producing raw materials from plant biomass | Jun 23, 17 | Apr 10, 18 | 9FIBER, INC. |
| 9938662 | Process for treating biomass | Jul 16, 15 | Apr 10, 18 | THE MICHIGAN BIOTECHNOLOGY INSTITUTE |
| 9896342 | agro-wastes | Sep 27, 17 | Feb 20, 18 | KING SAUD UNIVERSITY |
| 9896661 | Method of producing cellulose nanostructures | Nov 03, 16 | Feb 20, 18 | KING SAUD UNIVERSITY |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0043,512 | HIGHLY REFINED PULP FROM FIBERS OBTAINED FROM USED BEVERAGE CARTONS | Oct 25, 22 | Feb 06, 25 | Stora Enso Oyj |
| 2024/0328,083 | METHOD FOR PREPARING FLUFF PULP FROM BAMBOOS AND FLUFF PULP PREPARED THEREBY | Oct 31, 22 | Oct 03, 24 | SOUTH CHINA UNIVERSITY OF TECHNOLOGY |
| 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 |
| 2023/0257,936 | PAPER PULP, A METHOD FOR PRODUCING PAPER PULP, AND PAPER PULP PRODUCTS | Nov 21, 22 | Aug 17, 23 | ShenZhen YUTO Packaging Technology Co., Ltd. |
| 2019/0194,867 | DOUBLE ALKALI CHARGING FOR CHIP IMPREGNATION | May 23, 17 | Jun 27, 19 | Valmet AB |
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