C01B 23/0052
By adsorption in solids
Official title: {by adsorption in solids}
C01B23/0052 (By adsorption in solids) appears on 106 US grants and 112 published applications in this corpus.
Search patents in C01B- Granted patents
- 106
- Published applications
- 112
- Assignees
- 54
- Inventors
- 334
- Latest grant
- 1 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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 4 |
| 2003 | 5 | 5 |
| 2004 | 3 | 3 |
| 2005 | 2 | 8 |
| 2006 | 0 | 3 |
| 2007 | 7 | 4 |
| 2008 | 5 | 2 |
| 2009 | 3 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 4 |
| 2012 | 4 | 5 |
| 2013 | 1 | 3 |
| 2014 | 7 | 5 |
| 2015 | 5 | 5 |
| 2016 | 3 | 6 |
| 2017 | 8 | 5 |
| 2018 | 3 | 6 |
| 2019 | 5 | 5 |
| 2020 | 2 | 3 |
| 2021 | 2 | 3 |
| 2022 | 2 | 5 |
| 2023 | 3 | 4 |
| 2024 | 4 | 4 |
| 2025 | 5 | 10 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of recycling helium from waste gas in semiconductor process1 Sep 2026US 12,722,973 B2Samsung Electronics Co., Ltd.
- Process and apparatus to recover helium23 Jun 2026US 12,662,379 B2The University of Western Australia
- Separation of krypton gas from xenon gas using natural clinoptilolite23 Sep 2025US 12,421,115 B1National Technology & Engineering Solutions of Sandia, LLC
- Waste argon separation system and method capable of reducing emission of cryogenic waste argon26 Aug 2025US 12,398,952 B2Shanghai Lifengas Co., Ltd
- Gas purification method and device13 May 2025US 12,297,107 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for obtaining xenon using a molecular sieve20 Aug 2026US 2026/0242223 A1Linde Aktiengesellschaft
- Device for purifying and liquefying helium and associated method20 Aug 2026US 2026/0243504 A1Bruker Switzerland AG
- Process for producing very high purity helium or hydrogen30 Jul 2026US 2026/0217533 A1Air Liquide Advanced Technologies U.S. LLC
- Waste gas treatment device, waste gas treatment method, and waste gas adsorption and recovery system including the same2 Oct 2025US 2025/0304445 A1Research Institute of Industrial Science & Technology
- Method for separating, enriching and recovering of he-3 from he-4 and use of the separated, enriched and recovered he-311 Sep 2025US 2025/0281879 A1Gfz Helmholtz-Zentrum Fur Geoforschung Stiftung Des Offentlichen Rechts Des Landes Bradenburg
Most cited
By later US patents
- Polymer formulations for gettering hydrogen62US 5,837,158 ASandia Corporation · 1998
- Gas supplying method and system54US 7,258,725 B2Taiyo Nippon Sanso Corporation · 2007
- Recovering of xenon by adsorption process50US 8,535,414 B2Air Products and Chemicals, Inc. · 2013
- Method for recovering high-value components from waste gas streams48US 8,795,411 B2Air Products and Chemicals, Inc. · 2014
- Enhanced helium recovery45US 5,632,803 ANitrotec Corporation · 1997