B01D 2257/2025
Chlorine
B01D2257/2025 (Chlorine) appears on 109 US grants and 125 published applications in this corpus.
Search patents in B01D- Granted patents
- 109
- Published applications
- 125
- Assignees
- 106
- Inventors
- 383
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 4 |
| 2005 | 2 | 3 |
| 2006 | 1 | 3 |
| 2007 | 5 | 3 |
| 2008 | 2 | 3 |
| 2009 | 0 | 4 |
| 2010 | 1 | 5 |
| 2011 | 2 | 3 |
| 2012 | 3 | 0 |
| 2013 | 4 | 2 |
| 2014 | 4 | 4 |
| 2015 | 1 | 5 |
| 2016 | 4 | 10 |
| 2017 | 5 | 0 |
| 2018 | 4 | 8 |
| 2019 | 7 | 7 |
| 2020 | 5 | 8 |
| 2021 | 5 | 10 |
| 2022 | 6 | 15 |
| 2023 | 9 | 5 |
| 2024 | 8 | 8 |
| 2025 | 3 | 5 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for treating a gas stream from plastic pyrolisis and/or biomass pyrolisis, and installation for integration into a steam cracker11 Aug 2026US 12,703,671 B2Technip Energies France
- GIS-type zeolite formed body, adsorption apparatus, separation method, and GIS-type zeolite16 Jun 2026US 12,654,149 B2Asahi Kasei Kabushiki Kaisha
- Industrial solid waste incinerator and flue gas treatment apparatus28 Apr 2026US 12,613,032 B2Zhejiang Weiming Environment Protection Co., Ltd.
- Solid filtration medium incorporating polyacrylamide powder and carbon7 Apr 2026US 12,594,522 B2Purafil, Inc.
- Pyrolysis method and system for recycled waste31 Mar 2026US 12,590,252 B2ExxonMobil Product Solutions Company
- Method for purifying bromine gas1 Oct 2026US 2026/0295496 A1Resonac Corporation
- Discharge gas treatment method and discharge gas treatment device23 Jul 2026US 2026/0208102 A1Resonac Corporation
- Process for desulfurization, decarbonization, and co purification of blast furnace gas25 Jun 2026US 2026/0175171 A1Fujian province Sinogasholder Equipment Installation Co., Ltd.
- Method for decomposing chlorine gas and method for removing the same4 Jun 2026US 2026/0151733 A1Resonac Corporation
- Composite filter cartridge7 May 2026US 2026/0124559 A1Kemflo International Co., Ltd.
Most cited
By later US patents
- Nonparticulating adsorbent recirculating filter73US 5,538,545 AW. L. Gore & Associates, Inc. · 1996
- Method and apparatus for prevention of atmospheric corrosion of electronic equipment69US 4,684,510 AHewlett-Packard Company · 1987
- Multifunctional air filter and air-circulating clean unit with the same incorporated therein69US 5,772,738 AKabushiki Kaisha Toshiba · 1998
- Adsorbent assembly for removing gaseous contaminants61US 5,593,482 AW. L. Gore & Associates, Inc. · 1997
- Gas cabinet assembly comprising sorbent-based gas storage and delivery system56US 6,406,519 B1Advanced Technology Materials, Inc. · 2002