B01D 2257/00
Components to be removed
B01D2257/00 (Components to be removed) appears on 14,556 US grants and 19,436 published applications in this corpus.
Search patents in B01D- Granted patents
- 14,556
- Published applications
- 19,436
- Assignees
- 6,024
- Inventors
- 33,640
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 38 | 0 |
| 1978 | 19 | 0 |
| 1979 | 21 | 0 |
| 1980 | 25 | 0 |
| 1981 | 32 | 0 |
| 1982 | 28 | 0 |
| 1983 | 32 | 0 |
| 1984 | 35 | 0 |
| 1985 | 45 | 0 |
| 1986 | 33 | 0 |
| 1987 | 36 | 0 |
| 1988 | 59 | 0 |
| 1989 | 50 | 0 |
| 1990 | 56 | 0 |
| 1991 | 44 | 0 |
| 1992 | 74 | 0 |
| 1993 | 60 | 0 |
| 1994 | 61 | 0 |
| 1995 | 77 | 0 |
| 1996 | 106 | 0 |
| 1997 | 146 | 0 |
| 1998 | 170 | 0 |
| 1999 | 181 | 0 |
| 2000 | 161 | 0 |
| 2001 | 172 | 66 |
| 2002 | 208 | 187 |
| 2003 | 229 | 261 |
| 2004 | 145 | 244 |
| 2005 | 144 | 333 |
| 2006 | 157 | 326 |
| 2007 | 175 | 349 |
| 2008 | 196 | 442 |
| 2009 | 226 | 582 |
| 2010 | 368 | 773 |
| 2011 | 369 | 769 |
| 2012 | 498 | 748 |
| 2013 | 641 | 764 |
| 2014 | 623 | 737 |
| 2015 | 595 | 839 |
| 2016 | 641 | 885 |
| 2017 | 690 | 865 |
| 2018 | 711 | 1016 |
| 2019 | 830 | 1045 |
| 2020 | 810 | 1002 |
| 2021 | 754 | 1030 |
| 2022 | 798 | 1038 |
| 2023 | 773 | 1193 |
| 2024 | 766 | 1340 |
| 2025 | 829 | 1429 |
| 2026 | 589 | 1173 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2257/50Carbon oxidesIndexing code5,524
- B01D 2257/70Organic compounds not provided for in groups b01d2257/00 - b01d2257/602Indexing code3,752
- B01D 2257/30Sulfur compoundsIndexing code2,962
- B01D 2257/10Single element gases other than halogensIndexing code2,607
- B01D 2257/40Nitrogen compoundsIndexing code2,499
- B01D 2257/80WaterIndexing code2,372
- B01D 2257/20Halogens or halogen compoundsIndexing code1,168
- B01D 2257/60Heavy metals or heavy metal compoundsIndexing code1,049
All 12 subgroupsShow fewer
- B01D 2257/90Odorous compounds not provided for in groups b01d2257/00 - b01d2257/708Indexing code585
- B01D 2257/91BacteriaIndexing code409
- B01D 2257/55Compounds of silicon, phosphorus, germanium or arsenicIndexing code230
- B01D 2257/93Toxic compounds not provided for in groups b01d2257/00 - b01d2257/708Indexing code175
Recent patents
- Contactor assembly and sorbent cartridge having sorbent bed for contactor assembly6 Oct 2026US 12,752,232 B2Mosaic Materials, Inc.
- Adsorbent bed with increased hydrothermal stability6 Oct 2026US 12,752,233 B2BASF SE
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- CO2 recovery system and CO2 recovery method6 Oct 2026US 12,752,235 B2Mitsubishi Heavy Industries, Ltd.
- Use of silica nanoparticles with triazine for H2S scavenging6 Oct 2026US 12,752,236 B2Nissan Chemical America Corporation
- Polysiloxane, method for its production and deodorant comprising it8 Oct 2026US 2026/0306689 A1Sagami Chemical Research Institute
- Gas turbine engine fuel system8 Oct 2026US 2026/0306970 A1General Electric Company
- Method of filtration of particulated systems with injection of nanobubbles, and, use8 Oct 2026US 2026/0306978 A1Universidade Federal Do Rio Grande Do Sul—Ufrgs
- Filter system for the removal of volatile organosulfur compounds (voscs) from indoor air8 Oct 2026US 2026/0306980 A1Air Tech Group, SLU
- Automotive air filters with hydrocarbon-absorbing media8 Oct 2026US 2026/0306983 A1
Most cited
By later US patents
- Membrane based fuel deoxygenator394US 6,315,815 B1United Technologies Corporation · 2001
- 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
- Operating room smoke evacuator with integrated vacuum motor and filter302US 7,597,731 B2Medtek Devices, Inc. · 2009
- Smoke plume evacuation filtration system295US 6,585,791 B12003