B01D 2251/80
Organic bases or salts
B01D2251/80 (Organic bases or salts) appears on 108 US grants and 146 published applications in this corpus.
Search patents in B01D- Granted patents
- 108
- Published applications
- 146
- Assignees
- 101
- Inventors
- 432
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 3 | 15 |
| 2011 | 1 | 16 |
| 2012 | 12 | 10 |
| 2013 | 7 | 6 |
| 2014 | 8 | 6 |
| 2015 | 4 | 11 |
| 2016 | 8 | 9 |
| 2017 | 9 | 12 |
| 2018 | 4 | 4 |
| 2019 | 13 | 5 |
| 2020 | 5 | 9 |
| 2021 | 7 | 7 |
| 2022 | 3 | 8 |
| 2023 | 4 | 10 |
| 2024 | 9 | 5 |
| 2025 | 4 | 7 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid carbon dioxide removal systems4 Aug 2026US 12,697,582 B2AirMyne, Inc.
- Method for simultaneously removing high-load sulfur dioxide and nitrogen oxide in waste gas10 Mar 2026US 12,569,807 B2Nanjing University
- Humidity control slurries, apparatuses, and methods of making same3 Feb 2026US 12,539,489 B2Boveda, 1nc.
- Device for continuous and efficient water absorption and regeneration of desiccant, an air cooler, and a method for controlling such a device3 Feb 2026US 12,540,741 B2Drupps Group AB
- Cyclopropenimines for activation of carbon dioxide25 Nov 2025US 12,478,951 B2International Business Machines Corporation
- Production of organic acid from monovalent acid salt via electrodialysis using a two-compartment electrodialysis unit2 Apr 2026US 2026/0091354 A1
- Plant and method for the purification of fumes and recovery of secondary raw material12 Feb 2026US 2026/0042062 A1Italcer S.P.A. Società Benefit
- Ethylene oxide abatement systems29 Jan 2026US 2026/0027520 A1Boston Scientific Scimed, Inc.
- Interfacial Surface Structures for Carbon Dioxide Removal Systems28 Aug 2025US 2025/0269322 A1AirMyne, Inc.
- Geocatalysts and their application to control co2 capture processes, economically and with environmental benefits28 Aug 2025US 2025/0269324 A1Danmarks Tekniske Universitet
Most cited
By later US patents
- CO2 recovery apparatus and CO2 recovery method75US 8,414,694 B2Mitsubishi Heavy Industries, Ltd. · 2013
- Amine absorber for carbon dioxide capture and processes for making and using the same58US 8,377,173 B2The University of Akron · 2013
- Gas liquid contactor and effluent cleaning system and method27US 7,866,638 B2Neumann Systems Group, Inc. · 2011
- Regenerative method for removing sulfides from gas streams25US 5,698,171 AQuaker Chemical Corporation · 1997
- Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canister20US 4,135,896 ACVI Incorporated · 1979