D01F 9/15
From coal pitch
Official title: from coal pitch
D01F9/15 (From coal pitch) appears on 93 US grants and 59 published applications in this corpus.
Search patents in D01F- Granted patents
- 93
- Published applications
- 59
- Assignees
- 59
- Inventors
- 224
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 1 | 4 |
| 2019 | 0 | 5 |
| 2020 | 3 | 4 |
| 2021 | 6 | 13 |
| 2022 | 5 | 2 |
| 2023 | 5 | 4 |
| 2024 | 7 | 4 |
| 2025 | 6 | 6 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pitch compositions for spinning into carbon articles and methods relating thereto19 May 2026US 12,630,947 B2ExxonMobil Technology and Engineering Company
- Methods for manufacturing carbon fiber from coal4 Nov 2025US 12,460,322 B2Carbon Holdings Intellectual Properties, LLC
- Methods for producing graphene from coal21 Oct 2025US 12,448,293 B2Carbon Holdings Intellectual Properties, LLC
- Pitch compositions for spinning into carbon articles and methods relating thereto7 Oct 2025US 12,435,450 B2Exxon Mobil Technology and Engineering Company
- Systems and methods for manufacturing carbon fiber from coal15 Jul 2025US 12,359,348 B2Carbon Holdings Intellectual Properties, LLC
- Chemical compound capture system and method5 Feb 2026US 2026/0035839 A1Carbon Holdings Intellectual Properties, LLC
- Methods for producing graphene from coal15 Jan 2026US 2026/0015241 A1Carbon Holdings Intellectual Properties, LLC
- Carbon-based energy storage devices, methods, and apparatuses8 Jan 2026US 2026/0009165 A1
- Systems and methods for manufacturing carbon fiber from coal16 Oct 2025US 2025/0320636 A1Carbon Holdings Intellectual Properties, LLC
- Using stimulus to convert coal to mesophase pitch and carbon fibers24 Apr 2025US 2025/0129293 A1Carbon Holdings Intellectual Properties, LLC
Most cited
By later US patents
- Low molecular weight mesophase pitch59US 4,209,500 AUnion Carbide Corporation · 1980
- Thermally conductive polymer sheet53US 6,652,958 B2Polymatech Co., Ltd. · 2003
- Thermally conductive polymer composition and thermally conductive molded article46US 6,730,731 B2Polymatech Co., Ltd. · 2004
- Non-aqueous electrolyte secondary cell cathode material and non-aqueous electrolyte secondary cell employing the cathode material40US 6,277,522 B1Sony Corporation · 2001
- Process for producing self-bonded webs of non-woven carbon fibers35US 4,032,607 AUnion Carbide Corporation · 1977