D21H 27/00
Special paper not otherwise provided for
Official title: Special paper not otherwise provided for, e.g. made by multi-step processes
D21H27/00 (Special paper not otherwise provided for) appears on 3,769 US grants and 4,755 published applications in this corpus.
Search patents in D21H- Granted patents
- 3,769
- Published applications
- 4,755
- Assignees
- 1,450
- Inventors
- 7,621
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 34 | 0 |
| 1977 | 18 | 0 |
| 1978 | 27 | 0 |
| 1979 | 9 | 0 |
| 1980 | 11 | 0 |
| 1981 | 35 | 0 |
| 1982 | 26 | 0 |
| 1983 | 25 | 0 |
| 1984 | 43 | 0 |
| 1985 | 25 | 0 |
| 1986 | 19 | 0 |
| 1987 | 31 | 0 |
| 1988 | 23 | 0 |
| 1989 | 28 | 0 |
| 1990 | 26 | 0 |
| 1991 | 27 | 0 |
| 1992 | 28 | 0 |
| 1993 | 28 | 0 |
| 1994 | 15 | 0 |
| 1995 | 43 | 0 |
| 1996 | 51 | 0 |
| 1997 | 63 | 0 |
| 1998 | 57 | 0 |
| 1999 | 67 | 0 |
| 2000 | 58 | 0 |
| 2001 | 69 | 13 |
| 2002 | 63 | 78 |
| 2003 | 62 | 132 |
| 2004 | 68 | 127 |
| 2005 | 55 | 132 |
| 2006 | 48 | 125 |
| 2007 | 49 | 141 |
| 2008 | 44 | 128 |
| 2009 | 42 | 124 |
| 2010 | 91 | 142 |
| 2011 | 87 | 132 |
| 2012 | 99 | 154 |
| 2013 | 117 | 169 |
| 2014 | 110 | 157 |
| 2015 | 111 | 227 |
| 2016 | 145 | 182 |
| 2017 | 117 | 193 |
| 2018 | 139 | 224 |
| 2019 | 149 | 218 |
| 2020 | 195 | 301 |
| 2021 | 190 | 273 |
| 2022 | 201 | 288 |
| 2023 | 197 | 307 |
| 2024 | 190 | 303 |
| 2025 | 178 | 267 |
| 2026 | 136 | 218 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Corrugated board for humid conditions6 Oct 2026US 12,753,554 B2Billerud Aktiebolag (publ)
- Sanitary tissue product rolls29 Sep 2026US 12,747,535 B2The Procter & Gamble Company
- Cellulosic fiber material and process29 Sep 2026US 12,747,537 B2PaperShell AB
- 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
- Multi-ply liner with washed NSSC pulp29 Sep 2026US 12,747,539 B2Stora Enso OYJ
- Arrays of sanitary tissue products comprising non-wood(s)8 Oct 2026US 2026/0307891 A1The Procter & Gamble Company
- Soft treated tissue product8 Oct 2026US 2026/0308852 A1Kimberly-Clark Worldwide, Inc.
- Heat-sealing paper for packaging a solid product1 Oct 2026US 2026/0297389 A1Riccobono Patents Limited
- A method for producing a fiber based article1 Oct 2026US 2026/0297852 A1Kemira Oyj
- Compostable packaging material1 Oct 2026US 2026/0297854 A1Neenah Gessner GmbH
Most cited
By later US patents
- Method for making a fibrous structure comprising cellulosic and synthetic fibers1,393US 7,354,502 B2The Procter & Gamble Company · 2008
- Hesperaloe tissue having improved cross-machine direction properties809US 10,337,148 B2Kimberly-Clark Worldwide, Inc. · 2019
- Substrate for wallboard joint tape and process for making same802US 10,106,932 B2International Paper Company · 2018
- Soft tissue406US 5,607,551 AKimberly-Clark Corporation · 1997
- Papermaking belt and method of making the same using differential light transmission techniques387US 5,334,289 AThe Procter & Gamble Company · 1994