D21H 5/1236
Of fibres which have been treated to render them suitable for sheet
Official title: {of fibres which have been treated to render them suitable for sheet formation, e.g. fibrillatable fibres}
D21H5/1236 (Of fibres which have been treated to render them suitable for sheet) appears on 10 US grants and 10 published applications in this corpus.
Search patents in D21H- Granted patents
- 10
- Published applications
- 10
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Paper filler composition30 Apr 2024US 11,970,817 B2FiberLean Technologies Limited
- Paper filler composition22 Aug 2023US 11,732,411 B2FiberLean Technologies Limited
- Paper filler composition5 Jul 2022US 11,377,791 B2FiberLean Technologies Limited
- Paper filler composition2 Nov 2021US 11,162,219 B2FiberLean Technologies Limited
- Paper filler composition16 Oct 2018US 10,100,464 B2FiberLean Technologies Limited
- Method for preparing janus paper by mycelia and janus paper11 Jun 2026US 2026/0160021 A1Jilin Agricultural University
- Paper filler composition18 Jul 2024US 2024/0240400 A1FiberLean Technologies Limited
- Paper filler composition17 Nov 2022US 2022/0364305 A1FiberLean Technologies Limited
- Paper filler composition20 Jan 2022US 2022/0018068 A1FiberLean Technologies Limited
- Paper filler composition14 Mar 2019US 2019/0078257 A1FiberLean Technologies Limited
Most cited
By later US patents
- Method of manufacture of a felted fibrous product from a nonaqueous medium37US 4,597,930 A1986
- Paper filler method31US 8,231,764 B2Imerys Minerals Limited · 2012
- Chemically opening chrysotile asbestos and encapsulating23US 3,965,284 ACanadian Patents and Development Limited · 1976
- Paper filler composition12US 9,127,405 B2Imerys Minerals Limited · 2015
- Method for the production of high density fiberboard3US 4,634,498 AUnited States Gypsum Company · 1987