D21H 5/1272
Of fibres which can be physically or chemically modified during or after
Official title: {of fibres which can be physically or chemically modified during or after web formation (after treatment of coated or impregnated papers D21H25/00 - D21H25/18)}
D21H5/1272 (Of fibres which can be physically or chemically modified during or after) appears on 19 US grants and 5 published applications in this corpus.
Search patents in D21H- Granted patents
- 19
- Published applications
- 5
- Assignees
- 17
- Inventors
- 35
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for the hydrolysis of a polymer25 Jun 2024US 12,018,113 B2Solenis Technologies, L.P.
- Method for producing paper or cardboard24 Oct 2023US 11,795,255 B2Solenis Technologies, L.P.
- Medical nonwoven fabric, and preparation method thereof1 Oct 2019US 10,428,458 B2Korea Institute of Industrial Technology
- Heat treatment of paper products having starch additives24 Apr 1990US 4,919,758 AInternational Paper Company
- Envelope type separator for storage battery and manufacturing process therefor4 Apr 1989US 4,818,340 ANihon Muki Kabushiki Kaisha
- Method for producing cellulose-fiber-containing material, method for producing reaction cellulose fibers, and method for producing reaction microfibers4 Dec 2025US 2025/0369189 A1Daio Paper Corporation
- Method for the hydrolysis of a polymer3 Feb 2022US 2022/0033540 A1Solenis Technologies Cayman, L.P.
- Method for producing paper or cardboard3 Feb 2022US 2022/0033555 A1Solenis Technologies Cayman, L.P.
- Medical nonwoven fabric, and preparation method thereof2 Jun 2016US 2016/0153143 A1Korea Institute of Industrial Technology
- Medical nonwoven fabric, and preparation method thereof25 Oct 2012US 2012/0270458 A1Korea Institute of Industrial Technology
Most cited
By later US patents
- Heat treatment of paper products having starch additives67US 4,919,758 AInternational Paper Company · 1990
- Non-woven fabric of hot-melt adhesive composite fibers57US 4,477,516 AChisso Corporation · 1984
- Method of manufacturing an inorganic fiber filter tube and product43US 4,376,675 AWhatman Reeve Angel Limited · 1983
- Preparing permanently embossed, highly porous wallpapers24US 4,257,842 AMontedison S.p.A. · 1981
- Method for preparing paperlike products from fibers threaded with polymer12US 4,615,689 AMobil Oil Corporation · 1986