C01B 32/306
With molecular sieve properties
Official title: with molecular sieve properties
C01B32/306 (With molecular sieve properties) appears on 44 US grants and 35 published applications in this corpus.
Search patents in C01B- Granted patents
- 44
- Published applications
- 35
- Assignees
- 41
- Inventors
- 137
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 6 |
| 2017 | 4 | 5 |
| 2018 | 3 | 2 |
| 2019 | 5 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing carbon molecular sieve membranes18 Nov 2025US 12,472,482 B2Dow Global Technologies LLC
- Activated carbon25 Mar 2025US 12,258,284 B2Ad'all Co., Ltd.
- Activated carbon16 Jan 2024US 11,873,235 B2Ad'all Co., Ltd.
- Activated carbon fiber sheet for motor vehicle canister7 Nov 2023US 11,807,525 B2Nippon Paper Industries Co., Ltd.
- Reactive inhibition of pore structure collapse during pyrolytic formation of carbon molecular sieves30 May 2023US 11,660,575 B2ExxonMobil Technology and Engineering Company
- Staged pyrolysis-catalytic gasification process systems for hydrogen production from biomass waste20 Aug 2026US 2026/0242679 A1Changzhou University
- Synthesis of porous carbon-based materials from Expanded Polystyrene (EPS) or Styrofoam12 Dec 2024US 2024/0408568 A1
- Activated carbon for adsorbing neutral per- and polyfluoroalkyl compounds and analysis method for neutral per- and polyfluoroalkyl compounds in water sample23 Nov 2023US 2023/0372893 A1Futamura Kagaku Kabushiki Kaisha
- Method of producing carbon molecular sieve membranes7 Sep 2023US 2023/0278006 A1Dow Global Technologies LLC
- Molecular sieve activated carbon8 Dec 2022US 2022/0387967 A1Osaka Gas Chemicals Co., Ltd.
Most cited
By later US patents
- Air separation by pressure swing adsorption with a high capacity carbon molecular sieve41US 5,240,474 AAir Products and Chemicals, Inc. · 1993
- Carbon molecular sieves and a process for their preparation and use38US 4,540,678 ACalgon Carbon Corporation · 1985
- Method of manufacturing carbonaceous granular molecular sieve30US 4,046,709 ADirector-General of Agency of Industrial Science and Technology · 1977
- Process for producing carbon molecular sieves29US 4,880,765 ABergwerksverband GmbH · 1989
- Activated carbon materials for high energy density ultracapacitors23US 8,318,356 B2Corning Incorporated · 2012