C01B 7/09
Bromine
Official title: Bromine; Hydrogen bromide
C01B7/09 (Bromine) appears on 165 US grants and 133 published applications in this corpus.
Search patents in C01B- Granted patents
- 165
- Published applications
- 133
- Assignees
- 109
- Inventors
- 386
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 12 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 3 |
| 2002 | 6 | 4 |
| 2003 | 4 | 8 |
| 2004 | 9 | 6 |
| 2005 | 0 | 6 |
| 2006 | 6 | 4 |
| 2007 | 1 | 4 |
| 2008 | 3 | 10 |
| 2009 | 1 | 6 |
| 2010 | 4 | 12 |
| 2011 | 5 | 7 |
| 2012 | 11 | 6 |
| 2013 | 2 | 8 |
| 2014 | 6 | 8 |
| 2015 | 5 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 2 |
| 2018 | 3 | 2 |
| 2019 | 2 | 2 |
| 2020 | 3 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 4 |
| 2023 | 3 | 4 |
| 2024 | 6 | 5 |
| 2025 | 0 | 11 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing high-purity cesium halide, and perovskite composite material11 Aug 2026US 12,703,640 B2Hanwha Solutions Corporation
- Halogen generator12 Nov 2024US 12,139,412 B2FEI Company
- Recovery of bromine from waste bromide brines27 Aug 2024US 12,071,353 B2Reaction 35, LLC
- Gas to olefins processes with coproduction of hydrogen27 Aug 2024US 12,071,389 B2Sulzer Management AG
- Process for recovering metals from recycled rechargeable batteries4 Jun 2024US 12,000,014 B2Bromine Compounds Ltd.
- Halogen mediated production of hydrogen and carbon from hydrocarbons9 Oct 2025US 2025/0313459 A1The Regents of the University of California
- Process for purifying hydrogen halide solutions containing organic impurities21 Aug 2025US 2025/0263296 A1
- Process For the Production of Dimethyl Ether and Hydrogen from Methane Using a Solid Metal Oxide Reagent21 Aug 2025US 2025/0263361 A1Sulzer Management AG
- Method of electrolysing hydrogen bromide after bromination21 Aug 2025US 2025/0263849 A1Sulzer Management AG
- Method of producing h2 and/or br2 by electrolysing hbr using fluoropolymer membranes21 Aug 2025US 2025/0263859 A1Totalenergies Onetech
Most cited
By later US patents
- Membrane solvent extraction82US 3,956,112 AAllied Chemical Corporation · 1976
- Comprehensive system for utility load leveling, hydrogen production, stack gas cleanup, greenhouse gas abatement, and methanol synthesis76US 6,093,306 ASolar Reactor Technologies, Inc. · 2000
- Cross-linked montmorillonite molecular sieves70US 4,216,188 AYeda Research and Development Co. Ltd. · 1980
- Inorganic perbromide compositions and methods of use thereof61US 5,607,619 AGreat Lakes Chemical Corporation · 1997
- Stabilized bromine solutions, method of manufacture and uses thereof for biofouling control61US 6,270,722 B1Nalco Chemical Company · 2001