D21H 17/40
Unsaturated
Official title: unsaturated
D21H17/40 (Unsaturated) appears on 18 US grants and 13 published applications in this corpus.
Search patents in D21H- Granted patents
- 18
- Published applications
- 13
- Assignees
- 14
- Inventors
- 40
- Latest grant
- 27 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Aramid-based paper with improved properties27 Jun 2023US 11,686,048 B2Teijin Aramid B.V.
- Composition comprising cross-linked anionic, organic polymeric microparticles, its preparation and use in paper and paperboard making processes19 Apr 2022US 11,306,441 B2Solenis Technologies, L.P.
- Method for producing paper21 Apr 2020US 10,626,558 B2Solenis Technologies, L.P.
- Wet strengthened fiber products, wet strengthening resins, and methods for making and using same28 May 2019US 10,301,777 B2Ecolab USA Inc.
- Wet strengthened fiber products, wet strengthening resins, and methods for making and using same4 Jul 2017US 9,695,552 B2Georgia-Pacific Chemicals LLC
- Method for producing a filtering material22 May 2025US 2025/0163651 A1
- Aramid-based paper with improved properties13 May 2021US 2021/0140108 A1Teijin Aramid B.V.
- Interpenetrating polymer network containing cross-linked poly(n-vinylamine)30 Jul 2020US 2020/0239680 A1Kemira Oyj
- Composition comprising cross-linked anionic, organic polymeric microparticles, its preparation and use in paper and paperboard making processes9 Jul 2020US 2020/0217015 A1Solenis Technologies Cayman, L.P.
- Method for producing paper2 Aug 2018US 2018/0216294 A1BASF SE
Most cited
By later US patents
- Hydrophilic random interpolymer from quaternary ammonium monomers and method for making same59US 4,111,922 AJohnson & Johnson · 1978
- Ethylene vinyl acetate compositions for paper saturation15US 4,659,595 ANational Starch and Chemical Corporation · 1987
- Binder compositions for fiber mats, and fiber mats and articles comprising them15US 8,053,528 B2Georgia-Pacific Chemicals LLC · 2011
- Air drying process14US 4,145,248 AMonsanto Company · 1979
- Process for preparing water sorptive products12US 4,270,977 ANL Industries, Inc. · 1981