B01D 67/0067
By carbonisation or pyrolysis
Official title: {by carbonisation or pyrolysis}
B01D67/0067 (By carbonisation or pyrolysis) appears on 146 US grants and 190 published applications in this corpus.
Search patents in B01D- Granted patents
- 146
- Published applications
- 190
- Assignees
- 122
- Inventors
- 445
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 4 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 2 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 4 |
| 2009 | 2 | 7 |
| 2010 | 2 | 8 |
| 2011 | 6 | 4 |
| 2012 | 2 | 5 |
| 2013 | 6 | 7 |
| 2014 | 5 | 3 |
| 2015 | 4 | 10 |
| 2016 | 3 | 9 |
| 2017 | 3 | 14 |
| 2018 | 14 | 17 |
| 2019 | 10 | 17 |
| 2020 | 7 | 9 |
| 2021 | 13 | 11 |
| 2022 | 7 | 10 |
| 2023 | 11 | 9 |
| 2024 | 7 | 12 |
| 2025 | 8 | 7 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carbon molecular sieve membranes based on oxygen-free polymeric precursors22 Sep 2026US 12,741,250 B2King Abdullah University of Science and Technology
- Asymmetric carbon molecular sieve hollow fiber membranes26 May 2026US 12,636,618 B1Triad National Security, LLC
- Desalination and/or purification device, desalination and/or purification carbon membrane, and method of desalinating and/or purifying a liquid12 May 2026US 12,623,924 B2King Abdullah University of Science and Technology
- Carbon hollow fibre membrane23 Dec 2025US 12,502,645 B2Norwegian University of Science and Technology (Ntnu)
- Gas separation membrane and gas separation membrane module25 Nov 2025US 12,478,926 B2Toray Industries, Inc.
- Purge device and production method for separation membrane1 Oct 2026US 2026/0295514 A1Mitsubishi Heavy Industries, Ltd.
- Carbon molecular sieve membranes, methods of manufacturing, and use thereof13 Aug 2026US 2026/0233168 A1Dow Global Technologies LLC
- Carbon molecular sieve membranes, methods of manufacturing, and use thereof13 Aug 2026US 2026/0233172 A1Dow Global Technologies LLC
- High capacity production of carbon molecular sieve membranes6 Aug 2026US 2026/0225033 A1
- Nanofiltration membrane based on carbon nanotube fibers and method for fabricating the same30 Jul 2026US 2026/0216657 A1Institute of Physics, Chinese Academy of Sciences
Most cited
By later US patents
- Composite carbon fluid separation membranes82US 5,288,304 AThe University of Texas System · 1994
- Separation device52US 4,685,940 A1987
- Gas separations using mixed matrix membranes47US 6,503,295 B1Chevron U.S.A.Inc. · 2003
- Carbon based porous hollow fiber membrane and method for producing same46US 5,089,135 AMitsubishi Rayon Co., Ltd. · 1992
- Mixed matrix membranes and methods for making the same43US 6,585,802 B2Chevron U.S.A.Inc. · 2003