D01F 9/1271
Alkanes or cycloalkanes
Official title: {Alkanes or cycloalkanes}
D01F9/1271 (Alkanes or cycloalkanes) appears on 99 US grants and 90 published applications in this corpus.
Search patents in D01F- Granted patents
- 99
- Published applications
- 90
- Assignees
- 70
- Inventors
- 249
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 5 |
| 2003 | 1 | 3 |
| 2004 | 1 | 9 |
| 2005 | 5 | 11 |
| 2006 | 4 | 13 |
| 2007 | 4 | 8 |
| 2008 | 6 | 8 |
| 2009 | 5 | 8 |
| 2010 | 5 | 4 |
| 2011 | 7 | 0 |
| 2012 | 2 | 1 |
| 2013 | 3 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 4 |
| 2023 | 4 | 3 |
| 2024 | 0 | 4 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carbon nanotube-resin composite and method for manufacturing carbon nanotube-resin composite25 Nov 2025US 12,480,230 B2Sumitomo Electric Industries, Ltd.
- Process of controlling the morphology of graphite15 Jul 2025US 12,357,973 B2Hazer Group Ltd.
- Carbon nanotube assembled wire and carbon nanotube assembled wire bundle11 Feb 2025US 12,221,347 B2Sumitomo Electric Industries, Ltd.
- Method for preparing carbon nanotube fiber having enhanced tensile strength19 Dec 2023US 11,845,662 B2LG Chem.Ltd.
- Carbon fiber fabrication systems and methods5 Sep 2023US 11,746,444 B2Palo Alto Research Center Incorporated
- Method for recycling an effluent gas from chemical vapor deposition or infiltration30 Apr 2026US 2026/0117374 A1Safran Landing Systems
- Reactor and process for producing carbonaceous materials28 Nov 2024US 2024/0391766 A1Pact Fuel, LLC
- Method and apparatus for manufacturing carbon nanotube assembled wire21 Nov 2024US 2024/0383755 A1Sumitomo Electric Industries, Ltd.
- Method and apparatus for manufacturing carbon nanotube assembled wire7 Nov 2024US 2024/0367978 A1Sumitomo Electric Industries, Ltd.
- Carbon sequestration system and process and pyrolysis process and reactor15 Aug 2024US 2024/0271335 A1Kwi Kunststoffwerk Industries Inc.
Most cited
By later US patents
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Method of producing carbon nanotubes254US 6,333,016 B1The Board of Regents of the University of Oklahoma · 2001
- Carbon fibrils and method for producing same250US 5,165,909 AHyperion Catalysis Int'l., Inc. · 1992
- Method and apparatus for producing carbon nanotubes180US 6,413,487 B1The Board of Regents of the University of Oklahoma · 2002
- Process for preparing fine carbon fibers in a gaseous phase reaction148US 4,572,813 ANikkiso Co., Ltd. · 1986