D21H 25/00
After-treatment of paper not provided for in groups d21h17/00 - d21h23/00
Official title: After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
D21H25/00 (After-treatment of paper not provided for in groups d21h17/00 - d21h23/00) appears on 1,337 US grants and 1,046 published applications in this corpus.
Search patents in D21H- Granted patents
- 1,337
- Published applications
- 1,046
- Assignees
- 624
- Inventors
- 2,745
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 16 | 0 |
| 1983 | 20 | 0 |
| 1984 | 10 | 0 |
| 1985 | 20 | 0 |
| 1986 | 8 | 0 |
| 1987 | 16 | 0 |
| 1988 | 12 | 0 |
| 1989 | 24 | 0 |
| 1990 | 18 | 0 |
| 1991 | 32 | 0 |
| 1992 | 27 | 0 |
| 1993 | 24 | 0 |
| 1994 | 24 | 0 |
| 1995 | 36 | 0 |
| 1996 | 28 | 0 |
| 1997 | 39 | 0 |
| 1998 | 35 | 0 |
| 1999 | 38 | 0 |
| 2000 | 47 | 0 |
| 2001 | 53 | 10 |
| 2002 | 47 | 48 |
| 2003 | 44 | 63 |
| 2004 | 38 | 61 |
| 2005 | 32 | 54 |
| 2006 | 19 | 41 |
| 2007 | 26 | 40 |
| 2008 | 20 | 46 |
| 2009 | 24 | 24 |
| 2010 | 33 | 31 |
| 2011 | 24 | 26 |
| 2012 | 22 | 35 |
| 2013 | 24 | 37 |
| 2014 | 27 | 43 |
| 2015 | 30 | 47 |
| 2016 | 32 | 52 |
| 2017 | 36 | 33 |
| 2018 | 25 | 44 |
| 2019 | 27 | 46 |
| 2020 | 36 | 46 |
| 2021 | 32 | 43 |
| 2022 | 41 | 42 |
| 2023 | 32 | 42 |
| 2024 | 39 | 29 |
| 2025 | 18 | 41 |
| 2026 | 21 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low cellulosic non-wood fiber products and methods of making the same6 Oct 2026US 12,753,553 B2Archer Daniels Midland Company
- Sanitary tissue product rolls29 Sep 2026US 12,747,535 B2The Procter & Gamble Company
- Moisture/oil resistant composite materials29 Sep 2026US 12,747,536 B2World Centric
- Method for producing a multilayer machine glazed paper comprising highly refined cellulose fibers and a multilayer machine glazed paper produced29 Sep 2026US 12,747,538 B2Stora Enso OYJ
- Extensible paper and its use in the production of expanded slit packaging wrap and void fill products22 Sep 2026US 12,741,798 B2HexcelPack, LLC
- Soft treated tissue product8 Oct 2026US 2026/0308852 A1Kimberly-Clark Worldwide, Inc.
- Method and apparatus for inputting thermal energy into a fluid, related apparatus and uses24 Sep 2026US 2026/0287253 A1Coolbrook Oy
- A method for producing a laminate, and a laminate27 Aug 2026US 2026/0250910 A1Stora Enso OYJ
- Process for producing a fibrous material27 Aug 2026US 2026/0250912 A1Stora Enso OYJ
- Paper treatment agent, paper using same, and method for improving texture of paper13 Aug 2026US 2026/0234874 A1Miyoshi Oil & Fat Co., Ltd.
Most cited
By later US patents
- Substrate for wallboard joint tape and process for making same802US 10,106,932 B2International Paper Company · 2018
- Tissue paper642US 4,529,480 AThe Procter & Gamble Company · 1985
- Tissue paper641US 4,637,859 AThe Procter & Gamble Company · 1987
- Soft absorbent imprinted paper sheet and method of manufacture thereof485US 4,191,609 AThe Procter & Gamble Company · 1980
- Soft tissue406US 5,607,551 AKimberly-Clark Corporation · 1997