C02F 3/1247
Comprising circular tanks with elements
Official title: {comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors}
C02F3/1247 (Comprising circular tanks with elements) appears on 70 US grants and 45 published applications in this corpus.
Search patents in C02F- Granted patents
- 70
- Published applications
- 45
- Assignees
- 41
- Inventors
- 130
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 2 | 2 |
| 2006 | 4 | 2 |
| 2007 | 4 | 4 |
| 2008 | 0 | 1 |
| 2009 | 3 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 2 | 5 |
| 2018 | 1 | 5 |
| 2019 | 5 | 2 |
| 2020 | 5 | 3 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Sanitary waste treatment plant40US 3,950,249 AThetford Corporation · 1976
- Reactor for implementing chemical reactions involving a biomass32US 5,897,997 ARhone-Poulenc Chimie · 1999
- Method for treating wastewater31US 5,490,935 A1996
- Sewage treatment system28US 5,549,818 A1996
- Multi-stage facultative wastewater treatment system and method hydrolyzing biosolids27US 6,086,765 AAtara Environmental, Inc. · 2000