C02F 2209/105
Particle number, particle size or particle characterisation
C02F2209/105 (Particle number, particle size or particle characterisation) appears on 49 US grants and 84 published applications in this corpus.
Search patents in C02F- Granted patents
- 49
- Published applications
- 84
- Assignees
- 65
- Inventors
- 234
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 4 |
| 2015 | 0 | 6 |
| 2016 | 2 | 7 |
| 2017 | 2 | 4 |
| 2018 | 2 | 5 |
| 2019 | 7 | 7 |
| 2020 | 4 | 8 |
| 2021 | 6 | 11 |
| 2022 | 5 | 7 |
| 2023 | 4 | 6 |
| 2024 | 7 | 9 |
| 2025 | 6 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods of marker based direct integrity testing of membranes3 Jun 2025US 12,318,733 B21934612 Ontario Inc.
- Removal and destruction of perfluoroalkyl and polyfluoroalkyl substances from contaminated water20 Aug 2026US 2026/0242247 A1Evoqua Water Technologies LLC
- Method for determining flocculation state and method of flocculation treatment13 Aug 2026US 2026/0234036 A1Kurita Water Industries Ltd.
- Flocculation state determination method and flocculation treatment method30 Jul 2026US 2026/0219151 A1Kurita Water Industries Ltd.
- Streaming Current Monitor25 Dec 2025US 2025/0389568 A1Dbg IP Limited
- Methods and systems for real-time water quality assessment27 Nov 2025US 2025/0361156 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Flocculation basin in water treatment process25US 4,654,139 AHitachi, Ltd. · 1987
- Automated effluence conditioning and treatment25US 6,110,382 AUltra Fine, Inc. · 2000
- Automated effluence conditioning and treatment apparatus23US 6,315,894 B1Ultra Fine, Inc. · 2001
- Methods for producing ultrapure water that generates increased cellular permeation11US 11,344,572 B2Hydrosome Holdings, LLC · 2022
- Method of maintaining water quality in a process stream11US 9,409,110 B2Nalco Company · 2016