C08B 3/18
Aceto-butyrates
C08B3/18 (Aceto-butyrates) appears on 30 US grants and 55 published applications in this corpus.
Search patents in C08B- Granted patents
- 30
- Published applications
- 55
- Assignees
- 14
- Inventors
- 103
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 4 |
| 2007 | 0 | 4 |
| 2008 | 1 | 7 |
| 2009 | 4 | 7 |
| 2010 | 1 | 0 |
| 2011 | 6 | 2 |
| 2012 | 5 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 4 |
| 2021 | 0 | 1 |
| 2022 | 2 | 5 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cellulose ester compositions derived from recycled Cellulose ester content syngas25 Aug 2026US 12,715,938 B2Eastman Chemical Company
- Hydrophobically modified chitosan compositions2 Jun 2026US 12,643,993 B2Medcura, Inc.
- Variable-size hydrophobically-modified polymers24 Mar 2026US 12,584,002 B2Medcura, Inc.
- Type 1 helper t cell-increasing agent, food and pharmaceutical11 Feb 2025US 12,220,426 B2Daicel Corporation
- Hydrophobically modified chitosan compositions17 Oct 2023US 11,787,922 B2Medcura, Inc.
- Cellulose ester mineral particle compositions and methods of reducing the molecular weight the cellulose ester in the compositions thereof9 Apr 2026US 2026/0098103 A1Eastman Chemical Company
- Biodegradable microbeads with enhanced optical effects29 Jan 2026US 2026/0027018 A1Eastman Chemical Company
- Biodegradable cellulose ester microparticles and systems and methods for the production thereof29 Jan 2026US 2026/0027033 A1Eastman Chemical Company
- Biodegradable Microbeads from Mixed Cellulose Esters13 Feb 2025US 2025/0051482 A1Eastman Chemical Company
- Freshwater Biodegradable Mixed Ester Cellulose Esters30 Jan 2025US 2025/0034366 A1Eastman Chemical Company
Most cited
By later US patents
- Cellulose esters and their production in carboxylated ionic liquids81US 8,148,518 B2Eastman Chemical Company · 2012
- Carboxylated cellulose esters28US 5,973,139 AEastman Chemical Company · 1999
- Production of ionic liquids25US 7,919,631 B2Eastman Chemical Company · 2011
- 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
- Cellulose acylate film and process for producing the same, and optical film and image display device using the cellulose acylate film18US 7,604,852 B2FUJIFILM Corporation · 2009