C02F 1/5227
Processes for facilitating the dissolution of solid flocculants in water
Official title: {Processes for facilitating the dissolution of solid flocculants in water}
C02F1/5227 (Processes for facilitating the dissolution of solid flocculants in water) appears on 104 US grants and 55 published applications in this corpus.
Search patents in C02F- Granted patents
- 104
- Published applications
- 55
- Assignees
- 62
- Inventors
- 198
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 3 | 4 |
| 2012 | 1 | 2 |
| 2013 | 1 | 5 |
| 2014 | 2 | 1 |
| 2015 | 3 | 3 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 4 |
| 2019 | 3 | 7 |
| 2020 | 4 | 5 |
| 2021 | 2 | 5 |
| 2022 | 5 | 1 |
| 2023 | 3 | 4 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Silica inhibitors for silica inhibition and dispersion22 Sep 2026US 12,741,890 B2Baker Hughes Oilfield Operations LLC
- Filtration device14 Apr 2026US 12,599,852 B2SSENG Co., Ltd.
- Systems and methods for treating a wastewater stream18 Nov 2025US 12,473,220 B2University of South Florida
- Compositions and method for removing impurities from a fluid stream8 Oct 2024US 12,110,241 B2M Vest Water AS
- Lignin floccules as cleaning agents for oil-contaminated materials30 Jan 2024US 11,884,563 B1Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
- Systems and methods for treating a wastewater stream12 Mar 2026US 2026/0070829 A1
- Silica inhibitors for silica inhibition and dispersion22 May 2025US 2025/0162910 A1Baker Hughes Oilfield Operations LLC
- System for Flow-Controlled Material Dosing for Use with Sedimentation Tanks17 Apr 2025US 2025/0122104 A1Clarified Waters, LLC
- Filtration device28 Dec 2023US 2023/0415075 A1SSENG Co., Ltd.
- Polymer flocculant mixing and dissolving system5 Oct 2023US 2023/0311076 A1Tomoe Engineering Co., Ltd.
Most cited
By later US patents
- Flocculation processes72US 4,720,346 AAllied Colloids Limited · 1988
- Mixing block for mixing polymers53US 4,057,223 ANalco Chemical Company · 1977
- Aqueous polymer dispersions52US 4,673,704 AAllied Colloids Limited · 1987
- Polymeric compositions52US 5,171,781 AAllied Colloids Limited · 1992
- Continuous polymer feed system for a waste water treatment plant50US 4,470,907 ANoranda Mines Limited · 1984