D21H 11/20
Chemically or biochemically modified fibres
D21H11/20 (Chemically or biochemically modified fibres) appears on 469 US grants and 613 published applications in this corpus.
Search patents in D21H- Granted patents
- 469
- Published applications
- 613
- Assignees
- 233
- Inventors
- 1,062
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 9 | 16 |
| 2003 | 20 | 32 |
| 2004 | 19 | 16 |
| 2005 | 11 | 21 |
| 2006 | 10 | 11 |
| 2007 | 5 | 15 |
| 2008 | 4 | 9 |
| 2009 | 3 | 10 |
| 2010 | 6 | 8 |
| 2011 | 10 | 12 |
| 2012 | 10 | 22 |
| 2013 | 3 | 26 |
| 2014 | 18 | 20 |
| 2015 | 15 | 45 |
| 2016 | 41 | 23 |
| 2017 | 15 | 28 |
| 2018 | 23 | 34 |
| 2019 | 22 | 40 |
| 2020 | 30 | 64 |
| 2021 | 28 | 45 |
| 2022 | 34 | 32 |
| 2023 | 28 | 29 |
| 2024 | 26 | 22 |
| 2025 | 12 | 17 |
| 2026 | 5 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fibrous cellulose, fibrous cellulose dispersion, and fibrous cellulose production method16 Jun 2026US 12,655,233 B2Oji Holdings Corporation
- Lignocellulosic bioplastics and composites, and methods for forming and use thereof12 May 2026US 12,624,502 B2University of Maryland, College Park
- Method for producing modified cellulose fiber, and modified cellulose fiber21 Apr 2026US 12,606,952 B2Kao Corporation
- Fibrous cellulose, fibrous cellulose composite resin, and method for manufacturing fibrous cellulose24 Feb 2026US 12,559,578 B2Daio Paper Corporation
- Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose17 Feb 2026US 12,553,185 B2Oji Holdings Corporation
- Fibrous cellulose composite resin1 Oct 2026US 2026/0297311 A1Daio Paper Corporation
- Method for manufacturing paper-making filler using mixed solution of organic fiber and inorganic compound and use thereof1 Oct 2026US 2026/0297850 A1MarinePad Co., Ltd.
- Process for producing rigid cellulosic product20 Aug 2026US 2026/0243023 A1Honext Material, Sl
- Multilayer paperboard30 Jul 2026US 2026/0218458 A1Billerud Aktiebolag (publ)
- Novel wheat milling derivative products, methods of making and uses of the same16 Jul 2026US 2026/0201641 A1Archer Daniels Midland Company
Most cited
By later US patents
- Modified cellulosic fibers and fibrous webs containing these fibers137US 6,146,494 AThe Procter & Gamble Company · 2000
- Methods for forming a fluted composite125US 6,630,054 B1Weyerhaeuser Company · 2003
- Methods for forming a fluted composite122US 7,166,190 B2National Institute for Strategic Technology Acquisistion and Commercialization · 2007
- Crosslinked cellulose products and method for their preparation114US 5,225,047 AWeyerhaeuser Company · 1993
- Aldehyde-modified cellulosic fibers for paper products having high initial wet strength109US 5,698,688 AThe Procter & Gamble Company · 1997