C01B 23/0094
Combined chemical and physical processing
Official title: {Combined chemical and physical processing}
C01B23/0094 (Combined chemical and physical processing) appears on 33 US grants and 29 published applications in this corpus.
Search patents in C01B- Granted patents
- 33
- Published applications
- 29
- Assignees
- 32
- Inventors
- 108
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 4 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Production of hyperpolarized gas12 Mar 2024US 11,926,525 B2The University of Nottingham
- Gas recovering apparatus, semiconductor manufacturing system, and gas recovering method26 Sep 2023US 11,766,635 B2Kioxia Corporation
- Method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber14 Mar 2023US 11,603,313 B2Praxair Technology, Inc.
- System and method for separating xenon-krypton mixed gas by hydrate formation process19 Jul 2022US 11,389,766 B2Dalian University of Technology
- Helium recovery from gaseous streams10 May 2022US 11,325,066 B2Saudi Arabian Oil Company
- Mixed gas separation device and mixed gas separation method27 Aug 2026US 2026/0250130 A1L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitaion des Procédés Georges Claude
- Process for producing very high purity helium or hydrogen30 Jul 2026US 2026/0217533 A1Air Liquide Advanced Technologies U.S. LLC
- Helium separation and recovery process17 Oct 2024US 2024/0343578 A1Arjae Design Solutions Ltd.
- Process for producing very high purity helium or hydrogen11 Jul 2024US 2024/0228285 A9Air Liquide Advanced Technologies U.S. LLC
- Process for producing very high purity helium or hydrogen25 Apr 2024US 2024/0132353 A1Air Liquide Advanced Technologies U.S. LLC
Most cited
By later US patents
- Process for the separation/recovery of gases114US 6,179,900 B2GKSS-Forschungszentrum Geesthacht GmbH · 2001
- Process for recovering helium from a gas stream99US 5,224,350 AAdvanced Extraction Technologies, Inc. · 1993
- Process for recovering helium from a multi-component gas stream77US 4,717,407 AAir Products and Chemicals, Inc. · 1988
- Enhanced helium recovery45US 5,632,803 ANitrotec Corporation · 1997
- Process for purifying a gas and apparatus for the implementation of such a process32US 5,993,612 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1999