D01B
Mechanical treatment of natural fibrous or filamentary material to obtain fibres of
Official title: MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING (crude extraction of asbestos fibres from ores B03B; apparatus for retting D01C)
D01B (Mechanical treatment of natural fibrous or filamentary material to obtain fibres of) appears on 355 US grants and 251 published applications in this corpus.
Search patents in D01B- Granted patents
- 355
- Published applications
- 251
- Assignees
- 213
- Inventors
- 637
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 3 | 0 |
| 1982 | 11 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 2 |
| 2002 | 8 | 3 |
| 2003 | 6 | 0 |
| 2004 | 3 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 2 | 7 |
| 2008 | 1 | 6 |
| 2009 | 3 | 8 |
| 2010 | 5 | 18 |
| 2011 | 3 | 4 |
| 2012 | 8 | 5 |
| 2013 | 7 | 13 |
| 2014 | 7 | 10 |
| 2015 | 6 | 9 |
| 2016 | 1 | 10 |
| 2017 | 9 | 13 |
| 2018 | 9 | 17 |
| 2019 | 8 | 20 |
| 2020 | 8 | 19 |
| 2021 | 13 | 21 |
| 2022 | 19 | 9 |
| 2023 | 13 | 9 |
| 2024 | 13 | 18 |
| 2025 | 8 | 10 |
| 2026 | 3 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- D01B 1/00Mechanical separation of fibres from plant material272
- D01B 3/00Mechanical removal of impurities from animal fibres37
- D01B 9/00Mechanical treatment of natural fibrous or filamentary material to obtain fibres of33
- D01B 7/00Obtaining silk fibres or filaments23
- D01B 5/00Hackling or heckling machines3
Recent patents
- Process for producing and using fibrillated biodegradable microfibers7 Jul 2026US 12,674,278 B2
- Feedstock processing method and system16 Jun 2026US 12,655,354 B2Defugo Techologies Pte Ltd
- Hemp separation apparatus21 Apr 2026US 12,606,938 B2
- Natural plant fibre reinforced concrete2 Dec 2025US 12,486,200 B2
- Continuous and discontinuous fibers, yarn, fabrics and composites using short natural fibers and fibrils4 Nov 2025US 12,460,323 B2GM Global Technology Operations LLC
- Process for converting raw bagasse into processed bagasse and processed bagasse made accordingly8 Oct 2026US 2026/0308642 A1
- Hemp-based products and method for producing the same24 Sep 2026US 2026/0286572 A1
- Method for producing thread bundle derived from bagworm silk threads spun on the surface of a base material10 Sep 2026US 2026/0265957 A1Kowa Company, Ltd.
- Automated adjustment of crop development estimates20 Aug 2026US 2026/0240069 A1Pioneer Hi-Bred International, Inc.
- System and apparatus for manufacturing insulation made from hemp, and product made therefrom23 Jul 2026US 2026/0209994 A1Knauf Insulation, Inc.
Most cited
By later US patents
- Cottonseed oil and uses56US 8,716,555 B2Commonwealth Scientific and Industrial Research Organisation · 2014
- Precursor silk feedstock for forming filaments40US 7,041,797 B2Spintec Engineering GmbH · 2006
- Method and apparatus for the splitting of cellulosic fibers, methods for the treatment of fibrous pulps for a papermaking process, methods for paper drying and paper products with split fibers40US 8,961,739 B22015
- Reinforcing and/or process fibres based on vegetable fibres and production thereof37US 7,195,694 B2Ecco Gleittechnik GmbH · 2007
- Fiber separation method and apparatus36US 5,513,805 A1996