D01F 9/328
For manufacturing filaments from polyaddition, polycondensation, or polymerisation products
Official title: {for manufacturing filaments from polyaddition, polycondensation, or polymerisation products}
D01F9/328 (For manufacturing filaments from polyaddition, polycondensation, or polymerisation products) appears on 34 US grants and 50 published applications in this corpus.
Search patents in D01F- Granted patents
- 34
- Published applications
- 50
- Assignees
- 33
- Inventors
- 125
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 4 |
| 2015 | 0 | 4 |
| 2016 | 1 | 4 |
| 2017 | 5 | 5 |
| 2018 | 2 | 1 |
| 2019 | 4 | 4 |
| 2020 | 0 | 3 |
| 2021 | 3 | 8 |
| 2022 | 4 | 2 |
| 2023 | 2 | 2 |
| 2024 | 6 | 8 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Production method for precarbonized fiber bundle, production method for carbon fiber bundle, and precarbonization furnace6 Jan 2026US 12,516,451 B2Toray Industries, Inc.
- System for producing carbon fibers from multipurpose commercial fibers19 Nov 2024US 12,146,242 B2UT-Battelle, LLC
- Furnace15 Oct 2024US 12,117,241 B2Onejoon GmbH
- Method of producing flame-resistant fiber bundle and carbon fiber bundle and flameproofing furnace13 Aug 2024US 12,060,659 B2Toray Industries, Inc.
- Oxidation heat treatment oven and method for manufacturing oxidized fiber bundle and carbon fiber bundle9 Jul 2024US 12,031,244 B2Toray Industries, Inc.
- Systems and methods for controlling closed die tooling movement during heat treatment of fiberous preform13 Nov 2025US 2025/0347034 A1Goodrich Corporation
- Process for preparing a carbon fiber precursor17 Jul 2025US 2025/0230583 A1
- Continuous oven9 Jan 2025US 2025/0012005 A1Teijin Carbon Europe GmbH
- Process for preparing a carbon fiber precursor31 Oct 2024US 2024/0360596 A1
- Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same12 Sep 2024US 2024/0301590 A1Hexcel Corporation
Most cited
By later US patents
- Crimped carbonaceous fibers32US 5,582,912 AThe Dow Chemical Company · 1996
- Apparatus and method for stabilization or oxidation of polymeric materials15US 7,649,078 B1UT-Battelle, LLC · 2010
- Non-linear carbonaceous fiber14US 5,356,707 AThe Dow Chemical Company · 1994
- Apparatus for producing oxidized filaments11US 4,559,010 AToray Industries, Inc. · 1985
- Process for manufacturing carbon fibers3US 9,677,196 B2M.A.E. S.P.A. · 2017