C08L 1/32
Cellulose ether-esters
C08L1/32 (Cellulose ether-esters) appears on 61 US grants and 96 published applications in this corpus.
Search patents in C08L- Granted patents
- 61
- Published applications
- 96
- Assignees
- 40
- Inventors
- 201
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 0 | 1 |
| 2011 | 2 | 7 |
| 2012 | 1 | 10 |
| 2013 | 4 | 1 |
| 2014 | 1 | 7 |
| 2015 | 10 | 2 |
| 2016 | 4 | 4 |
| 2017 | 1 | 6 |
| 2018 | 4 | 14 |
| 2019 | 10 | 3 |
| 2020 | 3 | 5 |
| 2021 | 4 | 4 |
| 2022 | 2 | 5 |
| 2023 | 4 | 3 |
| 2024 | 1 | 3 |
| 2025 | 4 | 5 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydroxypropyl methyl cellulose acetate succinate, method for producing the same, and composition for hot-melt extrusion23 Dec 2025US 12,503,521 B2Shin-Etsu Chemical Co., Ltd.
- Hydroxypropyl methyl cellulose phthalate, method for producing the same, and composition for hot-melt extrusion18 Nov 2025US 12,473,425 B2Shin-Etsu Chemical Co., Ltd.
- Cellulosic superabsorbent polymer from post-consumer textile waste20 May 2025US 12,305,023 B2The Hong Kong Research Institute of Textiles and Apparel Limited
- Regioselectively substituted cellulose ester based C+ compensation films with improved wavelength dispersion18 Mar 2025US 12,252,603 B2Eastman Chemical Company
- Hydroxypropyl methyl cellulose phthalate and method for producing the same16 Jan 2024US 11,873,351 B2Shin-Etsu Chemical Co., Ltd.
- Hydroxypropyl methyl cellulose phthalate, method for producing the same, and composition for hot-melt extrusion20 Nov 2025US 2025/0353999 A1Shin-Etsu Chemical Co., Ltd.
- Thermoforming composition15 May 2025US 2025/0154346 A1Daicel Corporation
- Binder for lithium ion batteries, and electrode and separator using same15 May 2025US 2025/0158069 A1ATTACCATO Limited Liability Company
- Hydroxypropyl methylcellulose acetate succinate powder, and method of producing the same30 Jan 2025US 2025/0034284 A1Shin-Etsu Chemical Co., Ltd.
- Method of producing hydroxypropyl methylcellulose acetate succinate powder30 Jan 2025US 2025/0034285 A1Shin-Etsu Chemical Co., Ltd.
Most cited
By later US patents
- Use of carboxymethyl cellulose acetate butyrate as a precoat or size for cellulosic man-made fiber boards24US 7,026,470 B2Eastman Chemical Company · 2006
- Low molecular weight cellulose mixed esters and their use as low viscosity binders and modifiers in coating compositions22US 7,585,905 B2Eastman Chemical Company · 2009
- Pharmaceutical compositions with enhanced performance21US 8,940,800 B2Bend Research, Inc. · 2015
- Compositions comprising neutralized polysaccharide derivatives11US 5,521,292 AAsahi Kasei Kabushiki Kaisha · 1996
- Cellulose ester/elastomer compositions11US 9,068,063 B2Eastman Chemical Company · 2015