C02F 3/2806
Anaerobic processes using solid supports for microorganisms
Official title: {Anaerobic processes using solid supports for microorganisms}
C02F3/2806 (Anaerobic processes using solid supports for microorganisms) appears on 439 US grants and 267 published applications in this corpus.
Search patents in C02F- Granted patents
- 439
- Published applications
- 267
- Assignees
- 325
- Inventors
- 983
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 12 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 16 | 0 |
| 1987 | 14 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 15 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 17 | 0 |
| 1998 | 12 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 6 |
| 2003 | 10 | 8 |
| 2004 | 10 | 12 |
| 2005 | 4 | 8 |
| 2006 | 8 | 8 |
| 2007 | 8 | 8 |
| 2008 | 8 | 8 |
| 2009 | 10 | 11 |
| 2010 | 7 | 13 |
| 2011 | 5 | 4 |
| 2012 | 9 | 5 |
| 2013 | 5 | 9 |
| 2014 | 3 | 9 |
| 2015 | 2 | 10 |
| 2016 | 4 | 13 |
| 2017 | 10 | 11 |
| 2018 | 13 | 16 |
| 2019 | 5 | 8 |
| 2020 | 7 | 20 |
| 2021 | 12 | 24 |
| 2022 | 18 | 12 |
| 2023 | 13 | 15 |
| 2024 | 17 | 17 |
| 2025 | 10 | 6 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wastewater treatment systems and methods21 Apr 2026US 12,606,473 B2Arizona Board of Regents on behalf of Arizona State University
- Refractory organic pollutants with photo- excited holes as electron acceptors16 Dec 2025US 12,497,312 B2Nanjing University of Science and Technology
- Dried microbial sludge granule as additive for wastewater treatment18 Nov 2025US 12,473,218 B2Probiosphere Inc.
- Sewage treatment system and method of continuous flow step-feed short-cut denitrification-anaerobic ammonia oxidation coupled with denitrification26 Aug 2025US 12,398,056 B2Beijing Drainage Group Co., Ltd
- Scalable floating micro-aeration unit, devices and methods22 Jul 2025US 12,365,610 B2Aquacycl, Inc.
- Fixed film bioreactor for purification of water and associated methods1 Oct 2026US 2026/0296937 A1WesTech Engineering, Inc.
- Compartmented reaction vessel, system and method for converting a substrate to a product13 Aug 2026US 2026/0233187 A1USW Commercial Services Ltd.
- Biodegradable carrier for methanization and/or methanation reaction and method for manufacturing16 Jul 2026US 2026/0201317 A1
- Wastewater treatment method and apparatus2 Jul 2026US 2026/0184614 A1
- Tannic acid-modified iron-biochar conductive carrier and preparation method thereof and anaerobic treatment method for wastewater30 Apr 2026US 2026/0116797 A1Nankai University
Most cited
By later US patents
- Two-stage anaerobic/aerobic treatment process117US 4,919,815 AZimpro/Passavant Inc. · 1990
- Process and apparatus for removal of organic pollutants from waste water104US 5,217,616 AAllied-Signal Inc. · 1993
- Membrane module for gas transfer and membrane supported biofilm process99US 6,645,374 B2Zenon Environmental Inc. · 2003
- Controlled denitrification process and system98US 5,482,630 ABoard of Regents, The University of Texas System · 1996
- Method for purification of water92US 5,458,779 AKaldnes Miljoteknologi A/S · 1995