B01D 2257/2064
Chlorine
B01D2257/2064 (Chlorine) appears on 223 US grants and 257 published applications in this corpus.
Search patents in B01D- Granted patents
- 223
- Published applications
- 257
- Assignees
- 227
- Inventors
- 697
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 3 |
| 2002 | 3 | 4 |
| 2003 | 4 | 8 |
| 2004 | 5 | 8 |
| 2005 | 4 | 10 |
| 2006 | 3 | 7 |
| 2007 | 7 | 4 |
| 2008 | 4 | 14 |
| 2009 | 4 | 17 |
| 2010 | 10 | 9 |
| 2011 | 7 | 11 |
| 2012 | 6 | 13 |
| 2013 | 7 | 4 |
| 2014 | 9 | 11 |
| 2015 | 12 | 16 |
| 2016 | 9 | 14 |
| 2017 | 12 | 12 |
| 2018 | 12 | 14 |
| 2019 | 15 | 14 |
| 2020 | 10 | 11 |
| 2021 | 6 | 2 |
| 2022 | 9 | 16 |
| 2023 | 6 | 10 |
| 2024 | 6 | 9 |
| 2025 | 4 | 9 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of separating phosgene and hydrogen chloride23 Jun 2026US 12,662,376 B2BASF SE
- Highly chlorine- and water-resistant catalyst, preparation method therefor and use thereof28 Apr 2026US 12,611,654 B2Zhejiang University
- Industrial solid waste incinerator and flue gas treatment apparatus28 Apr 2026US 12,613,032 B2Zhejiang Weiming Environment Protection Co., Ltd.
- Carbon dioxide purification system24 Mar 2026US 12,582,937 B2M Icell Technology Co., Ltd.
- Titanium-organic framework photocatalyst for adsorption and decomposition of volatile organic compound, manufacturing method thereof and method for removing volatile organic compound using titanium-organic framework10 Mar 2026US 12,569,838 B2Industry-Academic Cooperation Foundation, Yonsei University
- Method and System for Azeotropic Separation Using Organophobic Ceramic Membranes27 Aug 2026US 2026/0249254 A1Molecular Filtration, Inc.
- Method for controlling semiconductor process environment30 Apr 2026US 2026/0115662 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Methods of treatment of volatile organic compounds using chlorine dioxide16 Apr 2026US 2026/0102531 A1Prokure Solutions, LLC
- Biogas halogen processing systems and methods12 Mar 2026US 2026/0070018 A1Stearns, Conrad and Schmidt, Consulting Engineers, Inc.
- Hazardous gas direct air capture module and system22 Jan 2026US 2026/0021438 A1GE Infrastructure Technology LLC
Most cited
By later US patents
- Environmental control unit, and air handling systems and methods using same100US 6,796,896 B22004
- Integrated filter combining physical adsorption and electrokinetic adsorption62US 6,274,041 B1Kimberly-Clark Worldwide, Inc. · 2001
- Enzyme systems for gas processing56US 6,143,556 A2000
- Porous pellet adsorbents fabricated from nanocrystals50US 6,093,236 AKansas State University Research Foundation · 2000
- Process and equipment for the treatment and recovery of solvent vapors by recycling on active charcoal49US 4,859,216 AAmeg France · 1989