C01B 21/0466
Zeolites
Official title: {Zeolites}
C01B21/0466 (Zeolites) appears on 40 US grants and 18 published applications in this corpus.
Search patents in C01B- Granted patents
- 40
- Published applications
- 18
- Assignees
- 23
- Inventors
- 89
- Latest grant
- 30 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 1 | 6 |
| 2017 | 5 | 0 |
| 2018 | 1 | 3 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and systems for performing chemical separations30 Mar 2021US 10,960,343 B2Lummus Technology Inc.
- High purity nitrogen/hydrogen production from an exhaust stream16 Jul 2019US 10,350,537 B2ExxonMobil Research and Engineering Company
- Processes using improved RHO adsorbent compositions9 Jul 2019US 10,343,139 B2Air Products and Chemicals, Inc.
- System and method for concentrating gas28 May 2019US 10,300,427 B2Invacare Corporation
- Material ITQ-55, method for preparation and use2 Jan 2018US 9,856,145 B2ExxonMobil Research and Engineering Company
- Methods and systems for performing chemical separations20 Feb 2020US 2020/0054983 A1Lummus Technology Inc.
- Processes using improved rho adsorbent compositions28 Mar 2019US 2019/0091651 A1Air Products and Chemicals, Inc.
- Methods and systems for performing chemical separations21 Jun 2018US 2018/0169561 A1Siluria Technologies, Inc.
- System and method for concentrating gas22 Mar 2018US 2018/0078891 A1Invacare Corporation
- High purity nitrogen/hydrogen production from an exhaust stream8 Feb 2018US 2018/0036670 A1ExxonMobil Research and Engineering Company
Most cited
By later US patents
- Nitrogen adsorption with a Ca and/or Sr exchanged lithium X-zeolite87US 5,152,813 AAir Products and Chemicals, Inc. · 1992
- Mixed ion-exchanged zeolites and processes for the use thereof in gas separations76US 5,174,979 AUop LLC · 1992
- Selective adsorption of CO.sub.2 on zeolites58US 4,775,396 AUnion Carbide Corporation · 1988
- Agglomerated adsorbent, process for the production thereof and use thereof for the non-cryogenic separation of industrial gases46US 6,652,626 B1Ceca S.A. · 2003
- Air separation by adsorption39US 4,026,680 AUnion Carbide Corporation · 1977