B01D 2255/2045
Calcium
B01D2255/2045 (Calcium) appears on 155 US grants and 206 published applications in this corpus.
Search patents in B01D- Granted patents
- 155
- Published applications
- 206
- Assignees
- 125
- Inventors
- 535
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 1 | 7 |
| 2010 | 2 | 10 |
| 2011 | 4 | 17 |
| 2012 | 5 | 9 |
| 2013 | 15 | 14 |
| 2014 | 8 | 14 |
| 2015 | 10 | 17 |
| 2016 | 13 | 13 |
| 2017 | 12 | 16 |
| 2018 | 10 | 11 |
| 2019 | 17 | 16 |
| 2020 | 11 | 10 |
| 2021 | 6 | 4 |
| 2022 | 6 | 7 |
| 2023 | 2 | 11 |
| 2024 | 8 | 7 |
| 2025 | 5 | 7 |
| 2026 | 5 | 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
- Steel mill offgas separation and purification18 Aug 2026US 12,708,874 B2Air Products and Chemicals, Inc.
- Process for producing functionalized organic molecules and uses thereof28 Jul 2026US 12,692,215 B2Universitat Politecnica De Catalunya
- 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.
- Exhaust gas purification method and exhaust gas purification apparatus20 Aug 2026US 2026/0241339 A1Mitsubishi Heavy Industries, Ltd.
- Plant and method for producing biomethane23 Oct 2025US 2025/0325938 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Two-stage air dryer system21 Aug 2025US 2025/0262594 A1
- SCR Zeolite Catalysts for Reduced N2O Formation10 Jul 2025US 2025/0222443 A1Umicore AG & Co. KG
- Catalyst with regular structure and preparation method thereof and method for simultaneously reducing both sox and nox from flue gas8 May 2025US 2025/0144567 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Exhaust gas purification device for an engine103US 5,472,673 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas purifying catalyst and manufacturing method thereof65US 7,851,405 B2Nissan Motor Co., Ltd. · 2010
- Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom42US 6,350,421 B1dmc2 Degussa Metals Catalysts Cerdec AG · 2002
- Alkaline earth/transition metal lean NOx catalyst29US 6,455,463 B1Delphi Technologies, Inc. · 2002
- Method for exhaust gas purification and system for exhaust gas purification used therein26US 6,029,441 ANGK Insulators, Ltd. · 2000