C02F 2303/20
Prevention of biofouling
C02F2303/20 (Prevention of biofouling) appears on 616 US grants and 1,003 published applications in this corpus.
Search patents in C02F- Granted patents
- 616
- Published applications
- 1,003
- Assignees
- 535
- Inventors
- 2,003
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 5 |
| 2003 | 4 | 7 |
| 2004 | 2 | 12 |
| 2005 | 2 | 10 |
| 2006 | 8 | 11 |
| 2007 | 8 | 23 |
| 2008 | 6 | 13 |
| 2009 | 12 | 24 |
| 2010 | 3 | 34 |
| 2011 | 15 | 36 |
| 2012 | 17 | 45 |
| 2013 | 20 | 40 |
| 2014 | 13 | 44 |
| 2015 | 33 | 59 |
| 2016 | 27 | 54 |
| 2017 | 32 | 64 |
| 2018 | 38 | 63 |
| 2019 | 55 | 61 |
| 2020 | 50 | 69 |
| 2021 | 62 | 60 |
| 2022 | 34 | 70 |
| 2023 | 38 | 61 |
| 2024 | 54 | 49 |
| 2025 | 44 | 55 |
| 2026 | 26 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water treatment method and water treatment agent composition8 Sep 2026US 12,728,390 B2Organo Corporation
- Filtration membrane and method of production thereof28 Jul 2026US 12,691,422 B2NewSouth Innovations Pty Limited
- Method for utilizing multiple simultaneous independent sources of water in a cooling tower28 Jul 2026US 12,692,175 B2Ecolab USA Inc.
- Wastewater treatment method21 Jul 2026US 12,685,968 B2Kubota Corporation
- Water softening system21 Jul 2026US 12,686,624 B2Kyungdong Navien Co., Ltd.
- Water treatment method and water treatment device8 Oct 2026US 2026/0308029 A1Organo Corporation
- System for determining filter status8 Oct 2026US 2026/0309611 A1
- Anti-Fouling System1 Oct 2026US 2026/0296606 A1
- Methods to reduce contamination, biofilm, and fouling from water systems and surfaces24 Sep 2026US 2026/0285716 A1Aequor, Inc.
- Method and system for controlling biofouling with fluorescent biodispersant3 Sep 2026US 2026/0257946 A1Chemtreat, Inc.
Most cited
By later US patents
- Method and apparatus for treating water in a cooling system80US 5,145,585 A1992
- Electrochemical treatment of an aqueous solution70US 6,632,347 B1Sterilox Medical (Europe) Limited · 2003
- Supported biofilm apparatus and process58US 7,169,295 B2Zenon Technology Partnership · 2007
- Chelators in combination with biocides: treatment of microbially induced biofilm and corrosion55US 6,267,979 B1Board of Regents, The University of Texas System · 2001
- Process for remediating biofouling in water systems with virulent bacteriophage49US 8,241,498 B2Phage Biocontrol Research, LLC · 2012