B01D 2256/00
Main component in the product gas stream after treatment
B01D2256/00 (Main component in the product gas stream after treatment) appears on 4,594 US grants and 5,451 published applications in this corpus.
Search patents in B01D- Granted patents
- 4,594
- Published applications
- 5,451
- Assignees
- 1,883
- Inventors
- 10,215
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 17 | 0 |
| 1978 | 9 | 0 |
| 1979 | 13 | 0 |
| 1980 | 13 | 0 |
| 1981 | 18 | 0 |
| 1982 | 23 | 0 |
| 1983 | 20 | 0 |
| 1984 | 25 | 0 |
| 1985 | 31 | 0 |
| 1986 | 19 | 0 |
| 1987 | 29 | 0 |
| 1988 | 43 | 0 |
| 1989 | 33 | 0 |
| 1990 | 34 | 0 |
| 1991 | 23 | 0 |
| 1992 | 48 | 0 |
| 1993 | 35 | 0 |
| 1994 | 23 | 0 |
| 1995 | 29 | 0 |
| 1996 | 46 | 0 |
| 1997 | 37 | 0 |
| 1998 | 37 | 0 |
| 1999 | 73 | 0 |
| 2000 | 60 | 0 |
| 2001 | 51 | 11 |
| 2002 | 75 | 52 |
| 2003 | 78 | 68 |
| 2004 | 47 | 55 |
| 2005 | 35 | 78 |
| 2006 | 37 | 70 |
| 2007 | 40 | 69 |
| 2008 | 51 | 115 |
| 2009 | 47 | 121 |
| 2010 | 83 | 189 |
| 2011 | 83 | 167 |
| 2012 | 133 | 217 |
| 2013 | 177 | 205 |
| 2014 | 159 | 245 |
| 2015 | 166 | 235 |
| 2016 | 187 | 296 |
| 2017 | 216 | 271 |
| 2018 | 257 | 355 |
| 2019 | 265 | 319 |
| 2020 | 258 | 341 |
| 2021 | 245 | 330 |
| 2022 | 280 | 346 |
| 2023 | 242 | 318 |
| 2024 | 253 | 360 |
| 2025 | 249 | 334 |
| 2026 | 132 | 284 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2256/24HydrocarbonsIndexing code1,727
- B01D 2256/12OxygenIndexing code1,194
- B01D 2256/16HydrogenIndexing code1,162
- B01D 2256/10NitrogenIndexing code755
- B01D 2256/22Carbon dioxideIndexing code515
- B01D 2256/18Noble gasesIndexing code288
- B01D 2256/20Carbon monoxideIndexing code227
- B01D 2256/26Halogens or halogen compoundsIndexing code79
All 9 subgroupsShow fewer
Recent patents
- Use of silica nanoparticles with triazine for H2S scavenging6 Oct 2026US 12,752,236 B2Nissan Chemical America Corporation
- System and method embodiments for treating produced water using supercritical water desalination coupled with supercritical water oxidation6 Oct 2026US 12,753,101 B1Triad National Security, LLC
- Autonomous modular flare gas conversion systems and methods6 Oct 2026US 12,753,138 B2M2X Energy Inc.
- Mixed gas separation method and mixed gas separation apparatus22 Sep 2026US 12,741,246 B2NGK Insulators, Ltd.
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Method for treating a fluid, fluid discharge device for a fluid and associated system8 Oct 2026US 2026/0306992 A1
- Gas separation method, method for producing purified gas, and gas separation apparatus8 Oct 2026US 2026/0306996 A1Asahi Kasei Kabushiki Kaisha
- 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
- Hydrogen generation device8 Oct 2026US 2026/0307031 A1
- Hydrogen generation apparatus8 Oct 2026US 2026/0307037 A1
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
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- Rapid cycle pressure swing adsorption oxygen concentration method and apparatus193US 5,827,358 AImpact MST, Incorporation · 1998