C08B 1/00
Preparatory treatment of cellulose for making derivatives thereof
Official title: Preparatory treatment of cellulose for making derivatives thereof {, e.g. pre-treatment, pre-soaking, activation}
C08B1/00 (Preparatory treatment of cellulose for making derivatives thereof) appears on 514 US grants and 633 published applications in this corpus.
Search patents in C08B- Granted patents
- 514
- Published applications
- 633
- Assignees
- 363
- Inventors
- 1,445
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 5 |
| 2003 | 8 | 12 |
| 2004 | 10 | 10 |
| 2005 | 9 | 10 |
| 2006 | 8 | 7 |
| 2007 | 5 | 14 |
| 2008 | 3 | 14 |
| 2009 | 1 | 21 |
| 2010 | 5 | 19 |
| 2011 | 8 | 31 |
| 2012 | 15 | 28 |
| 2013 | 20 | 51 |
| 2014 | 32 | 57 |
| 2015 | 40 | 38 |
| 2016 | 42 | 41 |
| 2017 | 24 | 28 |
| 2018 | 21 | 23 |
| 2019 | 25 | 41 |
| 2020 | 16 | 21 |
| 2021 | 27 | 26 |
| 2022 | 17 | 38 |
| 2023 | 13 | 16 |
| 2024 | 16 | 23 |
| 2025 | 14 | 31 |
| 2026 | 12 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cellulose ester compositions derived from recycled Cellulose ester content syngas25 Aug 2026US 12,715,938 B2Eastman Chemical Company
- Two methods for preparing universal microbial medium by eutectic system-based cellulose liquefaction25 Aug 2026US 12,716,050 B2Xinjiang University
- Process for manufacturing of nanocrystalline cellulose (NCC)18 Aug 2026US 12,709,648 B2Sixring Inc.
- Super-tough cellulose aerogel fiber as well as preparation method and use thereof14 Jul 2026US 12,680,198 B2Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano) , Chinese Academy of Sciences
- Device for pretreating refined cotton and method of use of same16 Jun 2026US 12,655,232 B2Hubei Jinhanjiang Refined Cotton Co., Ltd.
- Material for additive extrusion-based component production1 Oct 2026US 2026/0297290 A1Ceratizit Austria GmbH
- Low viscosity cm-mfc17 Sep 2026US 2026/0274998 A1Suzano S.A.
- Methods of making cellulose ester microbeads with water recovery and recycle17 Sep 2026US 2026/0275058 A1Eastman Chemical Company
- Polymer modified nanofiber composites10 Sep 2026US 2026/0265416 A1University of Maine System Board of Trustees
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process27 Aug 2026US 2026/0249512 A1SAS Woodoo
Most cited
By later US patents
- Dissolution and processing of cellulose using ionic liquids152US 6,824,599 B2University of Alabama · 2004
- Cellulose matrix encapsulation and method122US 6,808,557 B2PG Research Foundation · 2004
- Cellulose ethers and method of preparing the same121US 7,022,837 B2BKI Holding Corporation · 2006
- Biomass refining process120US 5,171,592 AAfex Corporation · 1992
- Oil bodies and associated proteins as affinity matrices120US 5,856,452 ASemBioSys Genetics Inc. · 1999