D21H 21/16
Sizing or water-repelling agents
D21H21/16 (Sizing or water-repelling agents) appears on 909 US grants and 1,257 published applications in this corpus.
Search patents in D21H- Granted patents
- 909
- Published applications
- 1,257
- Assignees
- 542
- Inventors
- 2,740
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 16 | 0 |
| 1997 | 21 | 0 |
| 1998 | 15 | 0 |
| 1999 | 26 | 0 |
| 2000 | 30 | 0 |
| 2001 | 41 | 8 |
| 2002 | 27 | 25 |
| 2003 | 18 | 29 |
| 2004 | 26 | 39 |
| 2005 | 14 | 31 |
| 2006 | 4 | 35 |
| 2007 | 20 | 32 |
| 2008 | 12 | 40 |
| 2009 | 16 | 35 |
| 2010 | 26 | 54 |
| 2011 | 22 | 37 |
| 2012 | 27 | 48 |
| 2013 | 29 | 42 |
| 2014 | 38 | 45 |
| 2015 | 22 | 41 |
| 2016 | 29 | 54 |
| 2017 | 45 | 39 |
| 2018 | 31 | 42 |
| 2019 | 31 | 43 |
| 2020 | 30 | 57 |
| 2021 | 26 | 45 |
| 2022 | 44 | 61 |
| 2023 | 29 | 86 |
| 2024 | 43 | 113 |
| 2025 | 34 | 93 |
| 2026 | 40 | 83 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermoformable ovenable recyclable coated cellulosic board, ovenable recyclable coated cellulosic board food vessels thermoformed therefrom, and methods for manufacturing and using thereof29 Sep 2026US 12,747,540 B2WestRock MWV, LLC
- Method for preparing multifunctional environmental friendly coating for waterproof and oil-proof food packaging papers by one step method and application thereof15 Sep 2026US 12,735,842 B2Zhejiang University of Science and Technology
- Amide compound25 Aug 2026US 12,715,948 B2Daikin Industries, Ltd.
- Graft polymer25 Aug 2026US 12,715,951 B2Daikin Industries, Ltd.
- Method for producing a machine glazed paper comprising microfibrillated cellulose and a machine glazed paper25 Aug 2026US 12,716,172 B2Stora Enso OYJ
- Oil Resistant Sheet Product8 Oct 2026US 2026/0308851 A1SWM Holdco Luxembourg
- Method for coating a hollow container comprising molded pulp8 Oct 2026US 2026/0308853 A1
- Coating apparatus for coating a hollow container comprising molded pulp1 Oct 2026US 2026/0297855 A1
- Oxygen barrier material24 Sep 2026US 2026/0286611 A1Upm-Kymmene Corporation
- Packaging web material, packaging pouch and process for forming a packaging pouch24 Sep 2026US 2026/0286615 A1Mondi AG
Most cited
By later US patents
- Dual-zoned absorbent webs287US 5,990,377 AKimberly-Clark Worldwide, Inc. · 1999
- Dual-zoned absorbent webs269US 6,395,957 B1Kimberly-Clark Worldwide, Inc. · 2002
- Dual-zoned absorbent webs109US 6,911,573 B2Kimberly-Clark Worldwide, Inc. · 2005
- Polysaccharide graft-polymers and the use in papermaking thereof91US 5,583,193 ANational Starch and Chemical Investment Holding Corporation · 1996
- Method and composition for the sizing of paper with a mixture of a polyacid and a polybase84US 6,171,444 B2SRI International · 2001