C08B 3/12
Preparation of cellulose esters of organic acids: of polybasic organic acids
Official title: of polybasic organic acids
C08B3/12 (Preparation of cellulose esters of organic acids: of polybasic organic acids) appears on 41 US grants and 45 published applications in this corpus.
Search patents in C08B- Granted patents
- 41
- Published applications
- 45
- Assignees
- 39
- Inventors
- 129
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 3 |
| 2003 | 3 | 3 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 5 | 4 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 4 | 1 |
| 2025 | 2 | 4 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cellulosic superabsorbent polymer from post-consumer textile waste20 May 2025US 12,305,023 B2The Hong Kong Research Institute of Textiles and Apparel Limited
- Ply fibrous product20 May 2025US 12,305,336 B2Essity Hygiene and Health Aktiebolag
- Fibrous cellulose-containing material and method for producing same, dried fibrous cellulose and method for producing same, and fibrous cellulose composite resin and method for producing same16 Jul 2024US 12,037,482 B2Daio Paper Corporation
- Fibrous cellulose and method for manufacturing the same, and fibrous cellulose composite resin and method for manufacturing the same18 Jun 2024US 12,012,469 B2Daio Paper Corporation
- Method for treating a fibrous material comprising nanocellulose with an organic acid or organic acid salt5 Mar 2024US 11,920,297 B2Stora Enso OYJ
- Amphiphilic cellulose derivatives, methods of making, and uses thereof27 Aug 2026US 2026/0250426 A1Purdue Research Foundation
- Thiol-functionalized cellulose nanocrystals for applications in rubber30 Jul 2026US 2026/0217950 A1Compagnie Generale Des Etablissements Michelin
- Multilayer metallized paper-based packaging material9 Jul 2026US 2026/0193843 A1Societe des Produits Nestle S. A.
- Resin composition and method for producing same1 Jan 2026US 2026/0002016 A1Panasonic Intellectual Property Management Co., Ltd.
- Method for manufacturing cellulose nanocrystals26 Jun 2025US 2025/0206848 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Aldehyde-modified cellulosic fibers for paper products having high initial wet strength109US 5,698,688 AThe Procter & Gamble Company · 1997
- Modified textile and other materials and methods for their preparation46US 6,379,753 B1Nano-Tex, LLC · 2002
- Oil- and water-repellent finishes for textiles30US 6,472,476 B1Nano-Tex, LLC · 2002
- Copolymers and oil-and water-repellent compositions containing them28US 6,380,336 B1Nano-Tex, LLC · 2002
- Modified textile and other materials and methods for their preparation27US 6,617,267 B2Nano-Tex, LLC · 2003