C01B 7/00
Halogens
Official title: Halogens; Halogen acids (oxyacids C01B11/00)
C01B7/00 (Halogens) appears on 1,339 US grants and 1,011 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,339
- Published applications
- 1,011
- Assignees
- 701
- Inventors
- 2,989
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 46 | 0 |
| 1977 | 46 | 0 |
| 1978 | 45 | 0 |
| 1979 | 36 | 0 |
| 1980 | 29 | 0 |
| 1981 | 27 | 0 |
| 1982 | 21 | 0 |
| 1983 | 22 | 0 |
| 1984 | 24 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 15 | 0 |
| 1988 | 15 | 0 |
| 1989 | 17 | 0 |
| 1990 | 25 | 0 |
| 1991 | 19 | 0 |
| 1992 | 33 | 0 |
| 1993 | 29 | 0 |
| 1994 | 28 | 0 |
| 1995 | 23 | 0 |
| 1996 | 19 | 0 |
| 1997 | 25 | 0 |
| 1998 | 35 | 0 |
| 1999 | 30 | 0 |
| 2000 | 22 | 0 |
| 2001 | 35 | 13 |
| 2002 | 33 | 39 |
| 2003 | 22 | 38 |
| 2004 | 34 | 52 |
| 2005 | 23 | 19 |
| 2006 | 26 | 28 |
| 2007 | 15 | 48 |
| 2008 | 15 | 54 |
| 2009 | 17 | 43 |
| 2010 | 26 | 67 |
| 2011 | 26 | 62 |
| 2012 | 34 | 57 |
| 2013 | 32 | 44 |
| 2014 | 38 | 36 |
| 2015 | 23 | 34 |
| 2016 | 25 | 35 |
| 2017 | 22 | 35 |
| 2018 | 38 | 48 |
| 2019 | 39 | 41 |
| 2020 | 36 | 34 |
| 2021 | 27 | 25 |
| 2022 | 22 | 34 |
| 2023 | 22 | 30 |
| 2024 | 23 | 41 |
| 2025 | 25 | 37 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for the separation of phosphorus pentafluoride from hydrogen chloride11 Aug 2026US 12,702,948 B2Mexichem Fluor S.A. De C.V.
- Method for producing high-purity cesium halide, and perovskite composite material11 Aug 2026US 12,703,640 B2Hanwha Solutions Corporation
- Process for the separation of a product mixture7 Jul 2026US 12,673,273 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Method of separating phosgene and hydrogen chloride23 Jun 2026US 12,662,376 B2BASF SE
- Method and apparatus for purifying ultra-high purity hydrogen fluoride19 May 2026US 12,630,422 B2Ram Technology Co., Ltd.
- Iodine extraction from brines1 Oct 2026US 2026/0296885 A1Voyageur Pharmaceuticals Ltd
- Iodine extraction from brines17 Sep 2026US 2026/0274665 A1Voyageur Pharmaceuticals Ltd
- Recirculatory fiber reactor27 Aug 2026US 2026/0249265 A1Chemtor, LP
- Process for manufacturing high-purity magnesium oxide from magnesium chloride13 Aug 2026US 2026/0234014 A1
- System and method for converting carbon dioxide in a gas stream to commercially desirable chemical products6 Aug 2026US 2026/0225031 A1Rushnu Inc
Most cited
By later US patents
- Fast quench reactor method295US 5,935,293 ALockheed Martin Idaho Technologies Company · 1999
- Fast quench reactor and method231US 5,749,937 ALockheed Idaho Technologies Company · 1998
- Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production129US 5,935,897 ABASF SE · 1999
- Thermal synthesis apparatus and process128US 6,821,500 B2Bechtel BWXT Idaho, LLC · 2004
- Bipolar membranes and method of making same111US 4,116,889 AAllied Chemical Corporation · 1978