B01D 53/1468
Removing hydrogen sulfide
Official title: {Removing hydrogen sulfide}
B01D53/1468 (Removing hydrogen sulfide) appears on 525 US grants and 527 published applications in this corpus.
Search patents in B01D- Granted patents
- 525
- Published applications
- 527
- Assignees
- 272
- Inventors
- 1,197
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 13 | 0 |
| 1984 | 12 | 0 |
| 1985 | 16 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 9 | 5 |
| 2004 | 4 | 7 |
| 2005 | 1 | 4 |
| 2006 | 4 | 8 |
| 2007 | 2 | 2 |
| 2008 | 8 | 9 |
| 2009 | 3 | 12 |
| 2010 | 6 | 6 |
| 2011 | 6 | 14 |
| 2012 | 7 | 11 |
| 2013 | 10 | 15 |
| 2014 | 16 | 28 |
| 2015 | 11 | 32 |
| 2016 | 21 | 40 |
| 2017 | 23 | 37 |
| 2018 | 33 | 41 |
| 2019 | 32 | 37 |
| 2020 | 31 | 39 |
| 2021 | 30 | 36 |
| 2022 | 33 | 25 |
| 2023 | 26 | 25 |
| 2024 | 25 | 43 |
| 2025 | 22 | 27 |
| 2026 | 13 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manufacturing method of chemical adsorbent for removing harmful gases, and apparatus thereof15 Sep 2026US 12,734,501 B2GTScien Co., Ltd.
- Systems and methods of abating hydrogen sulfide gas28 Jul 2026US 12,691,403 B2Rivian IP Holdings, LLC
- Systems and methods for ammonia recovery, acid gas separation, or combination thereof7 Jul 2026US 12,673,876 B2Innovator Energy, LLC
- Method of scavenging hydrogen sulfide from sour gas well using mineral oil nanoemulsions23 Jun 2026US 12,662,619 B1King Fahd University of Petroleum and Minerals
- Method and device for washing and purification with low-temperature methanol16 Jun 2026US 12,655,022 B2Dalian Jiachun Gas Purification Technology Development Co., Ltd
- Method Of Abating Carbon Dioxide And Hydrogen Sulfide1 Oct 2026US 2026/0295509 A1Barnard College
- Conditioning wet sour gas via integrated desulfurization and dehydration24 Sep 2026US 2026/0284582 A1Merichem Technologies, LLC
- Hydrogen sulphide and mercaptan scavenging additive concentrate comprising an oxazolidine compound and an alkoxylated amine24 Sep 2026US 2026/0284585 A1TotalEnergies One Tech
- Compositions and methods for carbon dioxide capture and fluid sweetening10 Sep 2026US 2026/0263993 A1Solugen, Inc.
- Rotary-bed device10 Sep 2026US 2026/0263995 A1Ifp Energies Nouvelles
Most cited
By later US patents
- Methods and configurations for acid gas enrichment156US 7,635,408 B2Fluor Technologies Corporation · 2009
- Hydrogen sulfide scavenging process105US 5,462,721 ACrescent Holdings Limited · 1995
- Scavengers for use in reducing sulfide impurities90US 6,267,938 B1Stanchem, Inc. · 2001
- Regeneration of hydrogen sulfide scavengers85US 5,980,845 A1999
- System for removal of hydrogen sulfide from a gas stream80US 5,738,834 AGas Research Institute · 1998