B01D 71/025
Aluminium oxide
Official title: {Aluminium oxide}
B01D71/025 (Aluminium oxide) appears on 206 US grants and 283 published applications in this corpus.
Search patents in B01D- Granted patents
- 206
- Published applications
- 283
- Assignees
- 202
- Inventors
- 765
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 5 |
| 2003 | 5 | 4 |
| 2004 | 4 | 7 |
| 2005 | 3 | 4 |
| 2006 | 2 | 7 |
| 2007 | 7 | 7 |
| 2008 | 0 | 5 |
| 2009 | 5 | 12 |
| 2010 | 8 | 15 |
| 2011 | 6 | 14 |
| 2012 | 7 | 10 |
| 2013 | 11 | 7 |
| 2014 | 2 | 7 |
| 2015 | 3 | 14 |
| 2016 | 5 | 13 |
| 2017 | 9 | 18 |
| 2018 | 14 | 16 |
| 2019 | 13 | 20 |
| 2020 | 11 | 25 |
| 2021 | 16 | 15 |
| 2022 | 14 | 15 |
| 2023 | 11 | 11 |
| 2024 | 8 | 8 |
| 2025 | 9 | 13 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous medium with adjustable fluid permeability and associated systems and methods14 Jul 2026US 12,678,743 B2Massachusetts Institute of Technology
- Catalyst system for dehydrogenation2 Jun 2026US 12,643,076 B2The Regents of the University of Michigan
- Polyamide-functionalized silicon carbide (SiC) nanoparticles-based ceramic membrane for separating an oil and water mixture12 May 2026US 12,624,143 B2King Fahd University of Petroleum and Minerals
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same10 Mar 2026US 12,569,816 B2Vito NV
- Lithium extraction composite for recovery of lithium from brines, and process of using said composition20 Jan 2026US 12,528,056 B2All American Lithium LLC
- Method and System for Azeotropic Separation Using Organophobic Ceramic Membranes27 Aug 2026US 2026/0249254 A1Molecular Filtration, Inc.
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216665 A1Sumitomo Chemical Company, Limited
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216666 A1Sumitomo Chemical Company, Limited
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Jul 2026US 2026/0183722 A1Vito NV
- Porous, crystalline compound25 Jun 2026US 2026/0175192 A1Christian-Albrechts-Universitaet zu Kiel
Most cited
By later US patents
- Separators for electrochemical cells222US 6,153,337 AMoltech Corporation · 2000
- Micromachined fluid handling devices206US 5,839,467 AResearch International, Inc. · 1998
- Separators for electrochemical cells160US 6,306,545 B1Moltech Corporation · 2001
- Process to form mesostructured films157US 5,858,457 ASandia Corporation · 1999
- High strength polycrystalline ceramic spheres96US 7,669,658 B2William Marsh Rice University · 2010