C02F 3/1242
Small compact installations for use in homes, apartment blocks, hotels or the
Official title: {Small compact installations for use in homes, apartment blocks, hotels or the like}
C02F3/1242 (Small compact installations for use in homes, apartment blocks, hotels or the) appears on 330 US grants and 174 published applications in this corpus.
Search patents in C02F- Granted patents
- 330
- Published applications
- 174
- Assignees
- 148
- Inventors
- 478
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 18 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 14 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 3 |
| 2002 | 6 | 5 |
| 2003 | 4 | 8 |
| 2004 | 4 | 3 |
| 2005 | 5 | 6 |
| 2006 | 9 | 4 |
| 2007 | 4 | 5 |
| 2008 | 3 | 6 |
| 2009 | 5 | 6 |
| 2010 | 2 | 8 |
| 2011 | 6 | 6 |
| 2012 | 6 | 7 |
| 2013 | 5 | 8 |
| 2014 | 7 | 9 |
| 2015 | 8 | 10 |
| 2016 | 4 | 4 |
| 2017 | 8 | 12 |
| 2018 | 4 | 11 |
| 2019 | 13 | 5 |
| 2020 | 12 | 8 |
| 2021 | 4 | 8 |
| 2022 | 6 | 8 |
| 2023 | 6 | 8 |
| 2024 | 5 | 9 |
| 2025 | 6 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multiple chamber septic tank with a plurality of large and small access ports25 Aug 2026US 12,715,798 B2KleanTu LLC
- Tank configuration with enhanced denitrification27 Jan 2026US 12,534,392 B2KleanTu LLC
- Biofilm reactor for treating wastewater7 Oct 2025US 12,434,988 B2
- Wastewater treatment method and system22 Jul 2025US 12,365,611 B2
- Wastewater treatment system, construction method for wastewater treatment system, and wastewater treatment cylinder8 Jul 2025US 12,351,495 B2Qingdao Shanqing Hotone Environmental Technology Co., Ltd
- Wastewater Treatment Method and System6 Aug 2026US 2026/0225931 A1
- Aerobic Bacterial Generator23 Jul 2026US 2026/0209093 A1Sludgehammer Group, Ltd.
- Tank configuration with enhanced denitrification7 May 2026US 2026/0125302 A1KleanTu LLC
- Biofilm reactor for treating wastewater29 Jan 2026US 2026/0028258 A1
- Stackable wastewater treatment chambers and installation method thereof31 Jul 2025US 2025/0243093 A1
Most cited
By later US patents
- Wastewater treatment process with cooperating velocity equalization, aeration and decanting means78US 5,186,821 A1993
- Sewage treatment system70US 4,021,347 A1977
- Arrangement for water purification67US 4,925,552 ABioTrol, Inc. · 1990
- Sewage treatment plant65US 5,006,232 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1991
- Wastewater treatment plant64US 4,608,157 ANorwalk Wastewater Equipment Company · 1986