D21H 27/001
Release paper
Official title: {Release paper}
D21H27/001 (Release paper) appears on 181 US grants and 170 published applications in this corpus.
Search patents in D21H- Granted patents
- 181
- Published applications
- 170
- Assignees
- 127
- Inventors
- 488
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 5 |
| 2003 | 3 | 8 |
| 2004 | 6 | 5 |
| 2005 | 3 | 13 |
| 2006 | 3 | 7 |
| 2007 | 2 | 14 |
| 2008 | 2 | 12 |
| 2009 | 0 | 5 |
| 2010 | 9 | 12 |
| 2011 | 6 | 4 |
| 2012 | 7 | 8 |
| 2013 | 9 | 8 |
| 2014 | 6 | 6 |
| 2015 | 3 | 4 |
| 2016 | 6 | 6 |
| 2017 | 5 | 6 |
| 2018 | 3 | 4 |
| 2019 | 4 | 5 |
| 2020 | 3 | 6 |
| 2021 | 4 | 3 |
| 2022 | 4 | 4 |
| 2023 | 2 | 6 |
| 2024 | 1 | 7 |
| 2025 | 7 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymer-coated cellulosic release liner base material16 Jun 2026US 12,655,325 B2Upm-Kymmene Corporation
- Organopolysiloxane composition for use in release paper or release film28 Apr 2026US 12,612,494 B2Shin-Etsu Chemical Co., Ltd.
- Addition-curable organopolysiloxane composition, release paper and release film17 Mar 2026US 12,577,429 B2Shin-Etsu Chemical Co., Ltd.
- BCTMP-tailored SCK paper for release liner18 Nov 2025US 12,473,693 B2Upm-Kymmene Corporation
- Method for manufacturing thermoplastic poly(vinyl alcohol) derivative in a melt state reaction and products thereof14 Oct 2025US 12,441,820 B2Upm-Kymmene Corporation
- A sck paper with short fiber furnish and improved sustainability23 Jul 2026US 2026/0210058 A1
- Addition-curable releasing silicone composition for silicone pressure sensitive adhesive, release film, and release paper21 May 2026US 2026/0139165 A1Shin-Etsu Chemical Co., Ltd.
- Coated paper liner30 Apr 2026US 2026/0117466 A1
- A sck paper comprising bctmp and recycled pulp29 Jan 2026US 2026/0028777 A1Upm-Kymmene Corporation
- Bctmp-tailored low basis weight sck paper for release liner1 Jan 2026US 2026/0002321 A1Upm-Kymmene Corporation
Most cited
By later US patents
- Coated sheet material69US 5,981,011 AA*Ware Technologies, L.C. · 1999
- Water dispersible/redispersible hydrophobic polyester resins and their application in coatings67US 5,958,601 ASeydel Companies, Inc. · 1999
- Water dispersible/redispersible hydrophobic polyester resins and their application in coatings59US 5,858,551 ASeydel Research, Inc. · 1999
- Coated sheet material and method56US 5,603,996 AA*Ware Technologies, L.C. · 1997
- Multi-ply tissue paper, paper converting device and method for producing a multi-ply tissue paper52US 7,871,692 B2SCA Hygiene Products AB · 2011