A61K 8/731
Cellulose
Official title: {Cellulose; Quaternized cellulose derivatives}
A61K8/731 (Cellulose) appears on 2,419 US grants and 3,395 published applications in this corpus.
Search patents in A61K- Granted patents
- 2,419
- Published applications
- 3,395
- Assignees
- 1,016
- Inventors
- 6,227
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 15 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 16 | 0 |
| 1984 | 23 | 0 |
| 1985 | 23 | 0 |
| 1986 | 19 | 0 |
| 1987 | 28 | 0 |
| 1988 | 22 | 0 |
| 1989 | 43 | 0 |
| 1990 | 22 | 0 |
| 1991 | 36 | 0 |
| 1992 | 26 | 0 |
| 1993 | 34 | 0 |
| 1994 | 27 | 0 |
| 1995 | 24 | 0 |
| 1996 | 24 | 0 |
| 1997 | 40 | 0 |
| 1998 | 63 | 0 |
| 1999 | 73 | 0 |
| 2000 | 64 | 0 |
| 2001 | 68 | 32 |
| 2002 | 51 | 81 |
| 2003 | 64 | 112 |
| 2004 | 32 | 100 |
| 2005 | 25 | 108 |
| 2006 | 24 | 84 |
| 2007 | 28 | 98 |
| 2008 | 23 | 70 |
| 2009 | 24 | 75 |
| 2010 | 36 | 109 |
| 2011 | 35 | 97 |
| 2012 | 35 | 89 |
| 2013 | 65 | 100 |
| 2014 | 77 | 157 |
| 2015 | 78 | 159 |
| 2016 | 68 | 182 |
| 2017 | 93 | 222 |
| 2018 | 113 | 166 |
| 2019 | 114 | 171 |
| 2020 | 103 | 191 |
| 2021 | 116 | 208 |
| 2022 | 116 | 202 |
| 2023 | 93 | 185 |
| 2024 | 105 | 150 |
| 2025 | 93 | 144 |
| 2026 | 59 | 103 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tooth whitening film, process of manufacturing thereof and a method of using such a film6 Oct 2026US 12,751,906 B2Bsolve Limited
- Hyperbranched polyglycerol polyglycidyl ether and its use as crosslinker for polysaccharides6 Oct 2026US 12,753,158 B2Biopolimeri S.R.L.
- Cellulose acetate particles6 Oct 2026US 12,753,246 B2FUJIFILM Business Innovation Corp.
- Hydrogel patch including additive solution adjustable for its syneresis pattern and method of manufacturing the composition29 Sep 2026US 12,746,188 B2Jincostech Co., Ltd.
- Cellulose particles29 Sep 2026US 12,747,340 B2FUJIFILM Business Innovation Corp.
- Solid Composition Comprising Natural Dyes and Makeup Process Using Same8 Oct 2026US 2026/0306367 A1L'oreal
- Methods of use of oral care compositions comprising hops8 Oct 2026US 2026/0306372 A1The Procter & Gamble Company
- Artificial nail composition and artificial nail1 Oct 2026US 2026/0294764 A1Shofu Inc.
- Resin particles and cosmetic24 Sep 2026US 2026/0283928 A1FUJIFILM Business Innovation Corp.
- Biodegradable microbeads with enhanced particle size distributions17 Sep 2026US 2026/0272810 A1Eastman Chemical Company
Most cited
By later US patents
- Medical device intended to come into contact with a patient's tissue and related manufacturing method849US 8,753,664 B2Perouse Medical · 2014
- Ionic semiconductor materials and applications thereof795US 5,055,171 AT and G Corporation · 1991
- Cross-linked gels of hyaluronic acid and products containing such gels319US 4,582,865 ABiomatrix, Inc. · 1986
- Vehicle systems for use in cosmetic compositions310US 5,106,609 AThe Procter & Gamble Company · 1992
- Vehicle systems for use in cosmetic compositions296US 5,104,646 AThe Procter & Gamble Company · 1992