B01D 2255/2022
Potassium
B01D2255/2022 (Potassium) appears on 166 US grants and 204 published applications in this corpus.
Search patents in B01D- Granted patents
- 166
- Published applications
- 204
- Assignees
- 120
- Inventors
- 563
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 3 |
| 2002 | 4 | 8 |
| 2003 | 4 | 6 |
| 2004 | 8 | 3 |
| 2005 | 4 | 5 |
| 2006 | 4 | 5 |
| 2007 | 1 | 5 |
| 2008 | 2 | 6 |
| 2009 | 3 | 10 |
| 2010 | 5 | 15 |
| 2011 | 4 | 16 |
| 2012 | 11 | 11 |
| 2013 | 9 | 13 |
| 2014 | 11 | 9 |
| 2015 | 8 | 11 |
| 2016 | 7 | 8 |
| 2017 | 11 | 18 |
| 2018 | 12 | 11 |
| 2019 | 15 | 8 |
| 2020 | 7 | 6 |
| 2021 | 4 | 6 |
| 2022 | 6 | 6 |
| 2023 | 1 | 8 |
| 2024 | 4 | 4 |
| 2025 | 4 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Complex oxides for reactive oxygen separation and related applications6 Oct 2026US 12,752,260 B2North Carolina State University
- Method for manufacturing catalyst for capture and conversion of carbon dioxide10 Mar 2026US 12,569,836 B2Lowcarbon Co., Ltd.
- Exhaust gas emissions abatement system13 Jan 2026US 12,521,696 B2Shell USA, Inc.
- Catalyst and catalytic oxidation-deoxidation method for unsaturated hydrocarbon-containing gas16 Dec 2025US 12,496,573 B2China Petroleum & Chemical Corporation
- Noxious gas purificant and its preparation and purification method thereof25 Nov 2025US 12,478,945 B2
- Improved hydrocarbon trap for cold-start hydrocarbon control from internal combustion engines1 Oct 2026US 2026/0295527 A1
- Material for the decomposition of n2o6 Nov 2025US 2025/0339849 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Photocatalyst granular material and preparation method therefor24 Apr 2025US 2025/0128247 A1Korea Institute of Civil Engineering and Building Technology
- Catalyst and application, and method for removing carbonyl sulfide in natural gas12 Dec 2024US 2024/0408582 A1China Petroleum & Chemical Corporation
- Method for manufacturing catalyst for capture and conversion of carbon dioxide15 Aug 2024US 2024/0269656 A1Lowcarbon Co., Ltd.
Most cited
By later US patents
- Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production129US 5,935,897 ABASF SE · 1999
- Multi-zoned catalytic trap and methods of making and using the same88US 6,375,910 B1Engelhard Corporation · 2002
- Lean-burn nox catalyst/nox trap system83US 5,727,385 AFord Global Technologies, LLC · 1998
- Exhaust gas purifying catalyst and manufacturing method thereof65US 7,851,405 B2Nissan Motor Co., Ltd. · 2010
- Catalytic reduction of nitrogen oxides64US 4,867,954 AUop LLC · 1989