B01D 53/1431
Pretreatment by other processes
Official title: {Pretreatment by other processes}
B01D53/1431 (Pretreatment by other processes) appears on 190 US grants and 262 published applications in this corpus.
Search patents in B01D- Granted patents
- 190
- Published applications
- 262
- Assignees
- 170
- Inventors
- 624
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 7 |
| 2012 | 2 | 6 |
| 2013 | 4 | 4 |
| 2014 | 5 | 6 |
| 2015 | 3 | 14 |
| 2016 | 12 | 23 |
| 2017 | 11 | 15 |
| 2018 | 15 | 18 |
| 2019 | 16 | 19 |
| 2020 | 8 | 16 |
| 2021 | 21 | 28 |
| 2022 | 16 | 17 |
| 2023 | 15 | 22 |
| 2024 | 17 | 28 |
| 2025 | 8 | 17 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for producing carbonate salts22 Sep 2026US 12,741,880 B2Nanomist Technologies Co., Ltd.
- Pollutant capturer and mobilizer8 Sep 2026US 12,729,640 B2
- Multi-stage direct capture of CO2 from air11 Aug 2026US 12,702,947 B2ExxonMobil Technology and Engineering Company
- 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
- Latent heat and condensation exchanger11 Aug 2026US 12,704,076 B2Sustainable Energy Solutions, LLC
- Catalytic reactor and system for purification of carbon dioxide streams and methods of using the same8 Oct 2026US 2026/0307007 A1Oxy Low Carbon Ventures, LLC
- Generation and utilization of ammoniated water in gasification1 Oct 2026US 2026/0297445 A1SunGas Renewables, Inc.
- Conditioning wet sour gas via integrated desulfurization and dehydration24 Sep 2026US 2026/0284582 A1Merichem Technologies, LLC
- Process for washing treatment for purifying ammonia-containing air3 Sep 2026US 2026/0257166 A1Klaas De Boer Beheer B.V.
- Exhaust gas purification method and exhaust gas purification apparatus20 Aug 2026US 2026/0241339 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- CO.sub.2 Removal from high CO.sub.2 content hydrocarbon containing streams96US 4,466,946 AStandard Oil Company (Indiana) · 1984
- Process for solids waste landfill gas treatment and separation of methane and carbon dioxide95US 5,642,630 A1997
- Energy-efficient process for the stripping of gases from liquids74US 4,444,571 ABend Research, Inc. · 1984
- Method for removing ammonia and carbon dioxide gases from a steam67US 6,027,552 AGraham Corporation · 2000
- CO.sub.2 removal from high CO.sub.2 content hydrocarbon containing streams46US 4,529,411 AThe Standard Oil Company · 1985