C02F 3/102
Permeable membranes
Official title: {Permeable membranes}
C02F3/102 (Permeable membranes) appears on 106 US grants and 147 published applications in this corpus.
Search patents in C02F- Granted patents
- 106
- Published applications
- 147
- Assignees
- 85
- Inventors
- 303
- Latest grant
- 8 Sep 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 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 4 |
| 2004 | 1 | 3 |
| 2005 | 2 | 4 |
| 2006 | 3 | 4 |
| 2007 | 9 | 2 |
| 2008 | 2 | 6 |
| 2009 | 3 | 3 |
| 2010 | 3 | 4 |
| 2011 | 4 | 8 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 4 |
| 2016 | 4 | 4 |
| 2017 | 2 | 9 |
| 2018 | 2 | 8 |
| 2019 | 5 | 6 |
| 2020 | 7 | 11 |
| 2021 | 6 | 15 |
| 2022 | 9 | 4 |
| 2023 | 6 | 14 |
| 2024 | 2 | 12 |
| 2025 | 4 | 8 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and installation for controlled microbiome shift for biomass densification in a biological treatment of a raw influent8 Sep 2026US 12,729,143 B2Newport Corporation
- MABR-based method for treating rare earth mine tailwater12 May 2026US 12,623,940 B2Guangdong University of Technology
- Wastewater treatment systems and methods21 Apr 2026US 12,606,473 B2Arizona Board of Regents on behalf of Arizona State University
- Device and method for cooperatively treating aquaculture tail water14 Apr 2026US 12,600,653 B2Nanchang University
- Process for water treatment using immersed gas transfer membranes17 Mar 2026US 12,577,137 B2Bl Technologies, Inc.
- Operation method of water treatment apparatus and water treatment apparatus8 Oct 2026US 2026/0308031 A1Kubota Corporation
- Systems for catalytically removing per- and polyfluoroalkyl substances from a fluid and related methods1 Oct 2026US 2026/0296939 A1Arizona Board of Regents on behalf of Arizona State University
- Floating apparatus for membrane biofilm reactor and process for water treatment25 Jun 2026US 2026/0176180 A1Bl Technologies, Inc.
- Methods and systems for removing trichloroethane, trichloroethene, and 1,4-dioxane from contaminated water and wastewater28 May 2026US 2026/0145975 A1Arizona Board of Regents on behalf of Arizona State University
- Membrane assembly for supporting a biofilm21 Aug 2025US 2025/0263318 A1Bl Technologies, Inc.
Most cited
By later US patents
- Membrane module for gas transfer and membrane supported biofilm process99US 6,645,374 B2Zenon Environmental Inc. · 2003
- Support aerated biofilm reactor91US 5,116,506 AOregon State University · 1992
- Fluid separation membrane module77US 6,986,428 B23M Innovative Properties Company · 2006
- Method of producing secondary metabolites76US 5,945,002 AWater Research Committe · 1999
- Granular activated carbon-sequencing batch biofilm reactor (GAC-SBBR)64US 5,126,050 ASBR Technologies, Inc. · 1992