C02F 3/08
Using moving contact bodies
Official title: using moving contact bodies
C02F3/08 (Using moving contact bodies) appears on 611 US grants and 466 published applications in this corpus.
Search patents in C02F- Granted patents
- 611
- Published applications
- 466
- Assignees
- 381
- Inventors
- 1,260
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 12 | 0 |
| 1980 | 8 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 16 | 0 |
| 1986 | 14 | 0 |
| 1987 | 15 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 6 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 16 | 0 |
| 1996 | 13 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 16 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 9 |
| 2003 | 10 | 7 |
| 2004 | 6 | 11 |
| 2005 | 8 | 15 |
| 2006 | 9 | 4 |
| 2007 | 9 | 12 |
| 2008 | 4 | 13 |
| 2009 | 8 | 18 |
| 2010 | 15 | 29 |
| 2011 | 14 | 22 |
| 2012 | 11 | 16 |
| 2013 | 21 | 22 |
| 2014 | 17 | 26 |
| 2015 | 11 | 26 |
| 2016 | 10 | 26 |
| 2017 | 16 | 17 |
| 2018 | 9 | 17 |
| 2019 | 14 | 18 |
| 2020 | 19 | 24 |
| 2021 | 9 | 37 |
| 2022 | 23 | 27 |
| 2023 | 19 | 25 |
| 2024 | 24 | 26 |
| 2025 | 11 | 11 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aerated biological filtration process for water treatment with a view to reducing the nitrogen content (NGL) of said water with reduction of carbon-source and aeration requirements22 Sep 2026US 12,741,895 B2Veolia Water Solutions & Technologies Support
- Efficient nitrogen and phosphorus removal process system for mariculture tail water treatment15 Sep 2026US 12,735,339 B2Tianjin Research Institute for Water Transport Engineering, M.O.T.
- 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
- Reduced-headspace digester1 Sep 2026US 12,722,994 B2Suez International
- Vacuum air lift systems including a fluidic oscillator28 Jul 2026US 12,692,177 B2Searen, LLC
- Onsite sustainable sanitation devices for water and nutrient recycling and methods of use thereof20 Aug 2026US 2026/0242264 A1
- Ceramics and methods of their manufacture30 Jul 2026US 2026/0217613 A1ImerTech SAS
- Wastewater treatment method and apparatus2 Jul 2026US 2026/0184614 A1
- Water purification system25 Jun 2026US 2026/0176159 A1Kyoraku Co., Ltd.
- Non-woven mat9 Apr 2026US 2026/0098362 A1
Most cited
By later US patents
- Ferromagnetic separation process and material265US 3,985,649 A1976
- Two-stage anaerobic/aerobic treatment process117US 4,919,815 AZimpro/Passavant Inc. · 1990
- Method for purification of water92US 5,458,779 AKaldnes Miljoteknologi A/S · 1995
- Apparatus and process for removing ammonia nitrogen from waste water86US 4,009,099 AEcolotrol, Inc. · 1977
- Waste water treating process85US 5,098,567 ANishihara Environmental Sanitation Research Corporation Limited · 1992