C01B 23/0042
By making use of membranes
Official title: {by making use of membranes}
C01B23/0042 (By making use of membranes) appears on 48 US grants and 60 published applications in this corpus.
Search patents in C01B- Granted patents
- 48
- Published applications
- 60
- Assignees
- 42
- Inventors
- 194
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 0 | 4 |
| 2016 | 5 | 6 |
| 2017 | 4 | 5 |
| 2018 | 2 | 3 |
| 2019 | 3 | 5 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 2 | 4 |
| 2025 | 4 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lunar regolith processing system for mining and beneficiation8 Sep 2026US 12,729,625 B2Interlune Corporation
- Particle repelling arrangement25 Nov 2025US 12,478,980 B1Lunar Helium-3 Mining, LLC
- Electrostatic filtration arrangement7 Oct 2025US 12,434,251 B1Lunar Helium-3 Mining, LLC
- Progressively chilled gas separation tanks2 Sep 2025US 12,405,056 B1Lunar Helium-3 Mining, LLC
- Ionized gas separation arrangement18 Feb 2025US 12,226,735 B1Lunar Helium-3 Mining, LLC
- Kiln exhaust gas regeneration apparatus and system, and kiln system16 Jul 2026US 2026/0199824 A1TDK Corporation
- Multi-stage hydrogen/helium separation using hydrogen-selective membranes11 Jun 2026US 2026/0158436 A1Hydrogen Onsite, S.L.
- Gas collection chamber with adsorber26 Feb 2026US 2026/0054270 A1Lunar Helium-3 Mining, LLC
- Systems and methods for production of low carbon intensity hydrogen from geologic sources27 Nov 2025US 2025/0361144 A1Koloma, Inc.
- Process to purify helium from methane with integrated nitrogen rejection using membrane technology4 Sep 2025US 2025/0276275 A1Air Liquide Advanced Technologies U.S. LLC
Most cited
By later US patents
- In-situ crystallized zeolite containing composition (LAI-ISC)46US 5,895,769 AExxon Research & Engineering Co. · 1999
- Membrane for separation of xenon from oxygen and nitrogen and method of using same39US 6,168,649 AMG Generon, Inc. · 2001
- Method of preparing high purity light gas by multiple-step gas separation32US 5,064,446 AUbe Industries, Ltd. · 1991
- Filter material and process for producing No.sub.2 -free gases or liquids25US 5,846,297 ATicona LLC · 1998
- Retention of noble gases in the exhaled air of ventilated patients by membrane separation22US 8,763,610 B22014