C02F 2103/005
Black water originating from toilets
Official title: {Black water originating from toilets}
C02F2103/005 (Black water originating from toilets) appears on 389 US grants and 476 published applications in this corpus.
Search patents in C02F- Granted patents
- 389
- Published applications
- 476
- Assignees
- 329
- Inventors
- 1,035
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 7 |
| 2003 | 9 | 12 |
| 2004 | 8 | 9 |
| 2005 | 6 | 10 |
| 2006 | 10 | 11 |
| 2007 | 12 | 11 |
| 2008 | 6 | 12 |
| 2009 | 7 | 15 |
| 2010 | 11 | 11 |
| 2011 | 7 | 8 |
| 2012 | 9 | 21 |
| 2013 | 8 | 13 |
| 2014 | 7 | 15 |
| 2015 | 9 | 23 |
| 2016 | 16 | 28 |
| 2017 | 17 | 30 |
| 2018 | 22 | 18 |
| 2019 | 19 | 22 |
| 2020 | 25 | 23 |
| 2021 | 22 | 31 |
| 2022 | 21 | 30 |
| 2023 | 17 | 35 |
| 2024 | 22 | 44 |
| 2025 | 20 | 22 |
| 2026 | 18 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multiple chamber septic tank with a plurality of large and small access ports25 Aug 2026US 12,715,798 B2KleanTu LLC
- Microorganism deodorizing device and deodorization treatment system18 Aug 2026US 12,708,873 B2Miraie Corporation
- Systems and methods of flexible electrochemical stripping to recover alkaline ammonia and acidic ammonium from wastewaters18 Aug 2026US 12,709,560 B2The Board of Trustees of the Leland Stanford Junior University
- Fluid recycling unit for aircraft11 Aug 2026US 12,703,648 B2MAG Aerospace Industries, LLC
- Water treatment system and water treatment method28 Jul 2026US 12,692,176 B2Wota Corp.
- Septic treatment system10 Sep 2026US 2026/0265102 A1Iflo LLC
- Vermifilter systems and methods for wastewater filtration20 Aug 2026US 2026/0242262 A1TBF-Solutions Inc.
- Onsite sustainable sanitation devices for water and nutrient recycling and methods of use thereof20 Aug 2026US 2026/0242264 A1
- Digital twin-based sewage treatment facility operation management system13 Aug 2026US 2026/0236645 A1Greentech, Inc.
- Processing Of Phosphate Solutions6 Aug 2026US 2026/0225888 A1Easymining Sweden AB
Most cited
By later US patents
- Shipboard wastewater treatment system104US 6,361,695 B1Zenon Environmental Inc. · 2002
- Modular shipboard membrane bioreactor system for combined wastewater streams98US 5,254,253 AZenon Environmental Inc. · 1993
- Waste and wastewater treatment and recycling system81US 6,383,369 B22002
- Membrane bioreactor, process and aerator74US 6,863,817 B2Zenon Environmental Inc. · 2005
- Treatment system57US 5,853,579 AWastech International, Inc. · 1998