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C01B 13/0233

Chemical processing only

Official title: {Chemical processing only}

C01B13/0233 (Chemical processing only) appears on 62 US grants and 46 published applications in this corpus.

Search patents in C01B

Granted patents: 62
Published applications: 46
Assignees: 59
Inventors: 174
Latest grant: 23 Dec 2025

Filings by year

C01B 13/0233: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	1	0
1977	0	0
1978	0	0
1979	1	0
1980	0	0
1981	0	0
1982	1	0
1983	0	0
1984	1	0
1985	1	0
1986	0	0
1987	1	0
1988	0	0
1989	2	0
1990	1	0
1991	3	0
1992	3	0
1993	2	0
1994	1	0
1995	3	0
1996	3	0
1997	1	0
1998	1	0
1999	3	0
2000	1	0
2001	2	0
2002	0	0
2003	0	0
2004	0	1
2005	0	0
2006	0	6
2007	1	1
2008	1	2
2009	2	2
2010	2	6
2011	1	2
2012	0	2
2013	1	3
2014	4	5
2015	3	4
2016	4	0
2017	3	2
2018	2	1
2019	0	0
2020	0	3
2021	0	1
2022	3	1
2023	0	2
2024	0	1
2025	3	0
2026	0	1

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents

Recent patents

Method for separating gases in an oxy-fuel combustion process by using oxygen-permeable membranes23 Dec 2025US 12,502,639 B2Kerionics, S.L.
Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water16 Dec 2025US 12,497,705 B2Hangzhou Oxygen Plant Group Co., Ltd.
Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method5 Aug 2025US 12,378,686 B2Hangzhou Oxygen Plant Group Co., Ltd.
Cluster compounds containing [Mn3SrO4] and [Mn4SrO4] core structures, preparation method and application thereof29 Nov 2022US 11,511,266 B2Institute of Chemistry, Chinese Academy of Sciences
Method for refining argon gas and recovering and refining apparatus for argon gas19 Apr 2022US 11,305,994 B2Shin-Etsu Handotai Co., Ltd.

Most cited

By later US patents