B01D 2256/26
Halogens or halogen compounds
B01D2256/26 (Halogens or halogen compounds) appears on 79 US grants and 90 published applications in this corpus.
Search patents in B01D- Granted patents
- 79
- Published applications
- 90
- Assignees
- 65
- Inventors
- 256
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 5 | 3 |
| 2003 | 6 | 8 |
| 2004 | 3 | 4 |
| 2005 | 2 | 5 |
| 2006 | 3 | 2 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 11 |
| 2017 | 6 | 3 |
| 2018 | 3 | 2 |
| 2019 | 3 | 4 |
| 2020 | 3 | 1 |
| 2021 | 3 | 3 |
| 2022 | 1 | 7 |
| 2023 | 0 | 3 |
| 2024 | 4 | 4 |
| 2025 | 6 | 4 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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 of separating phosgene and hydrogen chloride23 Jun 2026US 12,662,376 B2BASF SE
- Molding catalyst for hydrogen chloride oxidation reaction, and method for producing same18 Nov 2025US 12,472,486 B2Hanwha Solutions Corporation
- Halon purification method4 Nov 2025US 12,459,880 B2Resonac Corporation
- Hydrogen chloride dehydration method2 Sep 2025US 12,404,172 B2Tokuyama Corporation
- Purge device and production method for separation membrane1 Oct 2026US 2026/0295514 A1Mitsubishi Heavy Industries, Ltd.
- Process for treating fluorinated gases28 May 2026US 2026/0145118 A1NuMat Technologies, Inc.
- Fluid Separation System26 Feb 2026US 2026/0054214 A1Vacuum Engineering Services Ltd
- Molding catalyst for hydrogen chloride oxidation reaction, and method for producing same5 Feb 2026US 2026/0034537 A1Hanwha Solutions Corporation
- Method for separating gas29 Jan 2026US 2026/0027513 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Gas purification system and method484US 6,514,313 B1Aeronex, Inc. · 2003
- Abatement of effluents from chemical vapor deposition processes using organometallic source reagents392US 6,749,671 B2Advanced Technology Materials, Inc. · 2004
- Method for water removal from corrosive gas streams90US 5,910,292 AAeronex, Inc. · 1999
- Sorbent-based gas storage and delivery system for dispensing of high-purity gas, and apparatus and process for manufacturing semiconductor devices, products and precursor structures utilizing same82US 6,132,492 AAdvanced Technology Materials, Inc. · 2000
- Gas cabinet assembly comprising sorbent-based gas storage and delivery system56US 6,406,519 B1Advanced Technology Materials, Inc. · 2002