C02F 2209/11
Turbidity
C02F2209/11 (Turbidity) appears on 463 US grants and 710 published applications in this corpus.
Search patents in C02F- Granted patents
- 463
- Published applications
- 710
- Assignees
- 383
- Inventors
- 1,344
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 4 |
| 2003 | 8 | 11 |
| 2004 | 2 | 9 |
| 2005 | 6 | 13 |
| 2006 | 5 | 11 |
| 2007 | 2 | 11 |
| 2008 | 8 | 19 |
| 2009 | 16 | 24 |
| 2010 | 19 | 31 |
| 2011 | 11 | 28 |
| 2012 | 9 | 25 |
| 2013 | 18 | 23 |
| 2014 | 7 | 36 |
| 2015 | 18 | 36 |
| 2016 | 17 | 37 |
| 2017 | 22 | 55 |
| 2018 | 28 | 46 |
| 2019 | 32 | 29 |
| 2020 | 37 | 42 |
| 2021 | 33 | 31 |
| 2022 | 26 | 42 |
| 2023 | 25 | 46 |
| 2024 | 35 | 27 |
| 2025 | 28 | 37 |
| 2026 | 14 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Structure and apparatus for purifying and containing high clarity water used for direct contact recreational purposes6 Oct 2026US 12,753,094 B2Crystal Lagoons Technologies, Inc.
- Measuring and controlling organic matter in waste water stream18 Aug 2026US 12,709,561 B2Kemira Oyj
- Online biological monitoring in decentralized non-potable water system23 Jun 2026US 12,662,406 B2Natural Systems Utilities, LLC
- Portable system for purification of liquids2 Jun 2026US 12,643,805 B2
- Apparatus and method for continuous monitoring and detection of microplastics in water12 May 2026US 12,625,039 B2Aizaco Limited Company
- Measurement device, measurement method, measurement program, and water treatment system17 Sep 2026US 2026/0274714 A1Yokogawa Electric Corporation
- Container and water treatment system20 Aug 2026US 2026/0241342 A1Yokogawa Electric Corporation
- Control device, control method, and control program20 Aug 2026US 2026/0242254 A1Yokogawa Electric Corporation
- Analysis device, analysis method, analysis program, and water treatment system20 Aug 2026US 2026/0242255 A1Yokogawa Electric Corporation
- Stormwater management system for urban storage and recovery13 Aug 2026US 2026/0234042 A1
Most cited
By later US patents
- Golf course irrigation water monitoring and treatment system204US 6,620,329 B2Turf Sentry, Inc. · 2003
- Method for remote monitoring of water treatment systems130US 6,954,701 B2Watereye, Inc. · 2005
- Method for monitoring advanced separation and/or ion exchange processes124US 6,332,110 B1PerLorica, Inc. · 2001
- Method for monitoring a public water treatment system101US 6,560,543 B2PerLorica, Inc. · 2003
- Performance-based control system87US 5,855,791 AAshland Chemical Company · 1999