Class D21C : PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
Subclass 3/18: Pulping cellulose-containing materials (digesters D21C 7/00) with halogens or halogen-generating compounds (bleaching cellulose pulp D21C 9/12)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11891501 | Method of producing resin modifier, resin modifier, and composite material | Feb 26, 20 | Feb 06, 24 | TOAGOSEI CO., LTD.; Japan as represented by President of the University of Tokyo; |
| 11479913 | Fiber production with supercritical fluid phase from cotton straw | Feb 13, 19 | Oct 25, 22 | Not available |
| 9777429 | Continuous process for production of cellulose pulp from grass-like plant feedstock | Mar 31, 14 | Oct 03, 17 | Not available |
| 9365973 | Method for producing cellulose nanofibers | Sep 13, 12 | Jun 14, 16 | NIPPON PAPER INDUSTRIES CO., LTD. |
| 9347179 | Methods of preserving starch in pulp and controlling calcium precipitation and/or scaling | Jun 22, 15 | May 24, 16 | Buckman Laboratories International, Inc. |
| 9091024 | Method to preserve native starch present in pulp in a papermaking process | May 15, 14 | Jul 28, 15 | Buckman Laboratories International, Inc. |
| 8764942 | Methods of preserving starch in pulp and controlling calcium precipitation and/or scaling | Jun 04, 13 | Jul 01, 14 | Buckman Laboratories International, Inc. |
| 7541175 | Alkaline extraction stages comprising xylanase | Dec 19, 01 | Jun 02, 09 | IOGEN ENERGY CORPORATION, NOVOZYMES A/S, |
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