D21H 17/25
Cellulose
D21H17/25 (Cellulose) appears on 306 US grants and 377 published applications in this corpus.
Search patents in D21H- Granted patents
- 306
- Published applications
- 377
- Assignees
- 189
- Inventors
- 769
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 8 | 8 |
| 2003 | 6 | 3 |
| 2004 | 0 | 3 |
| 2005 | 3 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 8 |
| 2009 | 1 | 10 |
| 2010 | 3 | 9 |
| 2011 | 3 | 4 |
| 2012 | 5 | 11 |
| 2013 | 7 | 10 |
| 2014 | 8 | 17 |
| 2015 | 11 | 48 |
| 2016 | 37 | 25 |
| 2017 | 15 | 18 |
| 2018 | 14 | 20 |
| 2019 | 14 | 22 |
| 2020 | 25 | 26 |
| 2021 | 22 | 24 |
| 2022 | 16 | 12 |
| 2023 | 14 | 22 |
| 2024 | 7 | 30 |
| 2025 | 8 | 14 |
| 2026 | 19 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymer compositions and coatings22 Sep 2026US 12,742,090 B2The Penn State Research Foundation
- Barrier coating for paper and paperboard22 Sep 2026US 12,742,291 B2Stora Enso OYJ
- Dry wipe, a biodegradable packaging containing the dry wipe, an arrangement and a process for providing a wet wipe5 May 2026US 12,618,027 B2Glatfelter Gernsbach GmbH
- Oil resistant article21 Apr 2026US 12,606,958 B2SWM Holdings US, LLC
- Treatment system for manufacture of paper, board or the like21 Apr 2026US 12,606,959 B2Kemira Oyj
- Method for producing long chain cellulose ester, long chain cellulose ester and its use13 Aug 2026US 2026/0234292 A1Kemira Oyj
- Composite papers and methods of making thereof6 Aug 2026US 2026/0226686 A1Eastman Chemical (China) Co., Ltd.
- Woven fabric30 Jul 2026US 2026/0218420 A1Spinnova Oyj
- Premium Sanitary Tissue Products Comprising Non-wood Fibers30 Jul 2026US 2026/0218456 A1The Procter & Gamble Company
- Nonwoven fabrics, products comprising the same and methods for manufacturing nonwoven fabrics23 Jul 2026US 2026/0210049 A1Spinnova Oyj
Most cited
By later US patents
- Water-disintegrable cleaning sheet156US 5,281,306 AKao Corporation · 1994
- Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use as paper additives144US 4,675,394 ANational Starch and Chemical Corporation · 1987
- Water dispersible formulations and materials and methods for influencing their water dispersibility91US 5,346,541 ANet/Tech International, Inc. · 1994
- Derivatized microfibrillar polysaccharide83US 6,602,994 B1Hercules Incorporated · 2003
- Papermaking using cationic starch and carboxymethyl cellulose or its additionally substituted derivatives81US 5,061,346 ABetz PaperChem, Inc. · 1991