B01D 2253/104
Alumina
B01D2253/104 (Alumina) appears on 1,076 US grants and 1,006 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,076
- Published applications
- 1,006
- Assignees
- 542
- Inventors
- 2,417
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 11 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 12 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 11 | 0 |
| 1992 | 18 | 0 |
| 1993 | 15 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 21 | 0 |
| 1997 | 23 | 0 |
| 1998 | 25 | 0 |
| 1999 | 28 | 0 |
| 2000 | 34 | 0 |
| 2001 | 26 | 9 |
| 2002 | 34 | 26 |
| 2003 | 27 | 39 |
| 2004 | 28 | 30 |
| 2005 | 15 | 45 |
| 2006 | 28 | 40 |
| 2007 | 23 | 29 |
| 2008 | 23 | 29 |
| 2009 | 14 | 22 |
| 2010 | 26 | 42 |
| 2011 | 17 | 43 |
| 2012 | 29 | 39 |
| 2013 | 40 | 30 |
| 2014 | 33 | 33 |
| 2015 | 28 | 43 |
| 2016 | 34 | 45 |
| 2017 | 36 | 51 |
| 2018 | 40 | 77 |
| 2019 | 61 | 57 |
| 2020 | 49 | 44 |
| 2021 | 41 | 42 |
| 2022 | 38 | 38 |
| 2023 | 33 | 39 |
| 2024 | 21 | 45 |
| 2025 | 32 | 37 |
| 2026 | 16 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and apparatus for removing unwanted components from a gas mixture8 Sep 2026US 12,728,382 B2Linde Aktiengesellschaft
- Process for treating a gas stream from plastic pyrolisis and/or biomass pyrolisis, and installation for integration into a steam cracker11 Aug 2026US 12,703,671 B2Technip Energies France
- Pressure swing adsorption apparatus for high purity hydrogen purification from ammonia decomposition and hydrogen purification method using the same4 Aug 2026US 12,697,581 B2Korea Institute of Energy Research
- System and method for pre-purification of a feed gas stream4 Aug 2026US 12,697,584 B2Linde Aktiengesellschaft
- Systems and methods of abating hydrogen sulfide gas28 Jul 2026US 12,691,403 B2Rivian IP Holdings, LLC
- Method for purifying bromine gas1 Oct 2026US 2026/0295496 A1Resonac Corporation
- Manufacturing Method of Absorber, Absorber, and Lithium Secondary Battery Including Absorber6 Aug 2026US 2026/0225073 A1SK On Co., Ltd.
- Facility for recovering co2 contained in a feed gas flow30 Jul 2026US 2026/0216646 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Tail gas treatment by two stage adsorption with intermediate cooling30 Jul 2026US 2026/0216647 A1Saudi Arabian Oil Company
- Inorganic fiber sheet23 Jul 2026US 2026/0208083 A1Tomoegawa Co., Ltd.
Most cited
By later US patents
- Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions401US 6,500,487 B1Advanced Technology Materials, Inc. · 2002
- Abatement of effluents from chemical vapor deposition processes using organometallic source reagents392US 6,749,671 B2Advanced Technology Materials, Inc. · 2004
- Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions386US 6,833,024 B2Adanced Technology Materials, Inc. · 2004
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- High capacity regenerable sorbent for removal of mercury from flue gas191US 6,719,828 B12004