C01B 13/027
Zeolites
Official title: {Zeolites}
C01B13/027 (Zeolites) appears on 57 US grants and 40 published applications in this corpus.
Search patents in C01B- Granted patents
- 57
- Published applications
- 40
- Assignees
- 46
- Inventors
- 142
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 3 | 7 |
| 2010 | 3 | 4 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 0 | 0 |
| 2019 | 4 | 2 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 2 | 3 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for mobile pressure swing adsorption oxygen production device30 Dec 2025US 12,508,534 B2Chengdu Yingchen Technology Co., Ltd
- Process for separation of hydrogen and oxygen26 Dec 2023US 11,850,546 B2Sabic Global Technologies B.V.
- Multivariable model predictive controller13 Sep 2022US 11,442,437 B2Lehigh University
- Process for separation of hydrogen and oxygen29 Mar 2022US 11,285,428 B2Sabic Global Technologies B.V.
- Adsorber with rotary dryer17 Sep 2019US 10,413,859 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Methods and equipment for cryogenic removal of impurities from oxygen gas11 Dec 2025US 2025/0376373 A1Entegris, Inc.
- Materials, systems, and processes for production of high purity oxygen30 Jan 2025US 2025/0033023 A1
- Method for dissociating water molecules to obtain hydrogen and oxygen gas and apparatus for dissociating water molecules30 Jan 2025US 2025/0034722 A1Adasune S.R.O.
- Method for Mobile Pressure Swing Adsorption Oxygen Production Device22 Feb 2024US 2024/0058744 A1Chengdu Yingchen Technology Co., Ltd
- Mixed gas generating system with oxygen generator or breathing tube2 Nov 2023US 2023/0347094 A1
Most cited
By later US patents
- Portable oxygen concentrator151US 6,520,176 B1L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2003
- Electrical current generation system94US 6,921,597 B2QuestAir Technologies Inc. · 2005
- Portable home oxygen therapy medical equipment90US 6,314,957 B1Air Liquide Sante (International) · 2001
- 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