D21H 13/02
Synthetic cellulose fibres
D21H13/02 (Synthetic cellulose fibres) appears on 299 US grants and 338 published applications in this corpus.
Search patents in D21H- Granted patents
- 299
- Published applications
- 338
- Assignees
- 179
- Inventors
- 735
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 1 |
| 2002 | 4 | 7 |
| 2003 | 6 | 9 |
| 2004 | 3 | 5 |
| 2005 | 3 | 3 |
| 2006 | 0 | 2 |
| 2007 | 3 | 2 |
| 2008 | 2 | 5 |
| 2009 | 0 | 5 |
| 2010 | 2 | 4 |
| 2011 | 1 | 1 |
| 2012 | 6 | 11 |
| 2013 | 6 | 7 |
| 2014 | 8 | 19 |
| 2015 | 8 | 39 |
| 2016 | 29 | 20 |
| 2017 | 17 | 22 |
| 2018 | 7 | 16 |
| 2019 | 11 | 18 |
| 2020 | 13 | 55 |
| 2021 | 19 | 21 |
| 2022 | 43 | 14 |
| 2023 | 13 | 16 |
| 2024 | 7 | 11 |
| 2025 | 10 | 14 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dry wipe, a biodegradable packaging containing the dry wipe, an arrangement and a process for providing a wet wipe5 May 2026US 12,618,027 B2Glatfelter Gernsbach GmbH
- Method for producing regenerated cellulose-based threads and felted cloths28 Apr 2026US 12,611,841 B2Refiberd, Inc.
- Method for producing modified cellulose fiber, and modified cellulose fiber21 Apr 2026US 12,606,952 B2Kao Corporation
- Quantitative Raman spectroscopy10 Mar 2026US 12,571,737 B2Aalto University Foundation sr
- Method for manufacturing onion pulp for paper and capsule9 Dec 2025US 12,492,511 B2
- Inorganic fiber sheet23 Jul 2026US 2026/0208083 A1Tomoegawa Co., Ltd.
- Lyocell fiber with increased tendency to fibrillate11 Jun 2026US 2026/0159995 A1Lenzing Aktiengesellschaft
- Method for improving surface structure of regenerated cellulose fiber11 Jun 2026US 2026/0160022 A1Qilu University of Technology (Sdas)
- Methods for Preparing Self-Structured Cellulose Aerogel Materials from Hydrogel and Their Applications30 Apr 2026US 2026/0117037 A1
- Packaging material and a pouched product for oral use16 Apr 2026US 2026/0103846 A1Swedish Match North Europe AB
Most cited
By later US patents
- Dispersible nonwoven fabric and method of making same166US 5,935,880 A1999
- Hydroentangled disintegratable fabric155US 4,755,421 AJames River Corporation of Virginia · 1988
- Cloth-like base sheet and method for making the same144US 6,315,864 B2Kimberly-Clark Worldwide, Inc. · 2001
- Lyocell fibre and a process for its manufacture119US 6,042,769 AAcordis Fibres (Holdings) Limited · 2000
- Wet laid bonded fibrous web containing bicomponent fibers including LLDPE116US 5,167,765 AHoechst Celanese Corporation · 1992