C08B 1/02
Rendering cellulose suitable for esterification
Official title: Rendering cellulose suitable for esterification {(esterification per se, C08B3/00, C08B5/00, C08B7/00 or C08B9/00)}
C08B1/02 (Rendering cellulose suitable for esterification) appears on 26 US grants and 36 published applications in this corpus.
Search patents in C08B- Granted patents
- 26
- Published applications
- 36
- Assignees
- 38
- Inventors
- 103
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 4 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 0 | 6 |
| 2020 | 3 | 2 |
| 2021 | 5 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
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
- Cellulose derivatives12 Dec 2023US 11,840,585 B2Betulium Oy
- Cellulose acetate, cellulose acetate fiber, cellulose acetate composition, method for producing cellulose acetate, and method for producing cellulose acetate composition13 Dec 2022US 11,525,014 B2Daicel Corporation
- Method for producing cellulose derivative, and cellulose derivative2 Nov 2021US 11,161,917 B2NEC Corporation
- Fine cellulose fiber and production method for same25 May 2021US 11,015,291 B2Asahi Kasei Kabushiki Kaisha
- Low viscosity cm-mfc17 Sep 2026US 2026/0274998 A1Suzano S.A.
- Method for preparing a thermoplastic composition5 Jun 2025US 2025/0179253 A1
- Method for preparing a thermoplastic composition29 May 2025US 2025/0171594 A1
- Janus-type spherical cellulose nanoparticles19 Dec 2024US 2024/0417487 A1AUT Ventures Limited
- Oleophilic cellulosic and/or lignocellulosic fibres, a composition and a product comprising the same, a method of preparing the same, and uses of the same28 Nov 2024US 2024/0392508 A1Metsa Fibre Oy
Most cited
By later US patents
- Process for the treatment of cellulose39US 5,473,061 ARhone-Poulenc Rhodia Aktiengesellschaft · 1995
- Process for preparation of cellulose acetate16US 4,306,060 ADaicel Chemical Industries, Ltd. · 1981
- Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs16US 6,022,614 AMichelin Recherche et Technique S.A. · 2000
- Pressure pretreatment for improving the acetylation of cellulose15US 5,371,207 AArbokem Inc. · 1994
- Preparation of highly reactive cellulose13US 4,399,275 AITT Corporation · 1983