D01F 9/08
Artificial filaments or the like of other substances: of inorganic material
Official title: of inorganic material (working or processing of metal wire B21F; from softened glass, minerals or slags C03B37/00)
D01F9/08 (Artificial filaments or the like of other substances: of inorganic material) appears on 2,375 US grants and 2,429 published applications in this corpus.
Search patents in D01F- Granted patents
- 2,375
- Published applications
- 2,429
- Assignees
- 1,097
- Inventors
- 5,360
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 26 | 0 |
| 1978 | 18 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 24 | 0 |
| 1982 | 20 | 0 |
| 1983 | 17 | 0 |
| 1984 | 36 | 0 |
| 1985 | 50 | 0 |
| 1986 | 36 | 0 |
| 1987 | 34 | 0 |
| 1988 | 30 | 0 |
| 1989 | 45 | 0 |
| 1990 | 47 | 0 |
| 1991 | 38 | 0 |
| 1992 | 26 | 0 |
| 1993 | 33 | 0 |
| 1994 | 37 | 0 |
| 1995 | 24 | 0 |
| 1996 | 29 | 0 |
| 1997 | 29 | 0 |
| 1998 | 32 | 0 |
| 1999 | 23 | 0 |
| 2000 | 18 | 0 |
| 2001 | 31 | 17 |
| 2002 | 31 | 66 |
| 2003 | 40 | 109 |
| 2004 | 54 | 89 |
| 2005 | 50 | 82 |
| 2006 | 71 | 95 |
| 2007 | 46 | 84 |
| 2008 | 42 | 89 |
| 2009 | 45 | 107 |
| 2010 | 83 | 103 |
| 2011 | 60 | 77 |
| 2012 | 51 | 83 |
| 2013 | 53 | 87 |
| 2014 | 55 | 93 |
| 2015 | 64 | 117 |
| 2016 | 83 | 113 |
| 2017 | 88 | 118 |
| 2018 | 82 | 101 |
| 2019 | 89 | 133 |
| 2020 | 79 | 128 |
| 2021 | 85 | 113 |
| 2022 | 88 | 103 |
| 2023 | 84 | 103 |
| 2024 | 103 | 104 |
| 2025 | 69 | 72 |
| 2026 | 34 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carbon fiber bundle containing sizing agent and method for producing same15 Sep 2026US 12,735,813 B2Toray Industries, Inc.
- Pitch-based ultrafine carbon fibers and pitch-based ultrafine carbon fiber dispersion15 Sep 2026US 12,735,814 B2Teijin Limited
- Laser writing in ambient conditions for carbonization of synthetic polymers, including nanostructured polymers treated in alkaline media15 Sep 2026US 12,735,815 B2Fondazione Istituto Italiano Di Technologia 5%
- Block copolymer porous carbon fibers and uses thereof25 Aug 2026US 12,715,819 B2Virginia Tech Intellectual Properties, Inc.
- Continuous fibres based on cellulose and/or cellulose derivatives, method for the production thereof and use thereof25 Aug 2026US 12,716,148 B2Centrotherm International AG
- Treatment agent for acrylic fibers and use of the same8 Oct 2026US 2026/0308815 A1Matsumoto Yushi-Seiyaku Co., Ltd.
- Method for preparing boron nitride nanosheets, method for preparing boron nitride nanosheet-based fibers, and fibers prepared thereby24 Sep 2026US 2026/0285683 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Carbon fiber precursor fiber bundle, thermally-stabilized fiber bundle, production method thereof, and method for producing carbon fiber bundle24 Sep 2026US 2026/0286575 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
- Method of making polyacrylonitrile based carbon fibers and polyacrylonitrile based carbon fiber fabric24 Sep 2026US 2026/0286576 A1University of Kentucky Research Foundation
- Refining and/or petrochemical facility and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy17 Sep 2026US 2026/0274747 A1Coolbrook Oy
Most cited
By later US patents
- Carbide nanomaterials684US 6,190,634 B1President and Fellows of Harvard College · 2001
- Production of metal ion containing carbon fibers useful in electron shielding applications454US 3,997,638 ACelanese Corporation · 1976
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Preparation of carbide nanorods351US 5,997,832 APresident and Fellows of Harvard College · 1999
- Nanotube films and articles330US 6,706,402 B2Nantero, Inc. · 2004