C02F 2305/12
Inert solids used as ballast for improving sedimentation
Official title: Inert solids used as ballast for improving sedimentation (C02F3/1226 takes precedence)
C02F2305/12 (Inert solids used as ballast for improving sedimentation) appears on 130 US grants and 169 published applications in this corpus.
Search patents in C02F- Granted patents
- 130
- Published applications
- 169
- Assignees
- 69
- Inventors
- 230
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 4 |
| 2003 | 2 | 5 |
| 2004 | 2 | 7 |
| 2005 | 4 | 6 |
| 2006 | 6 | 7 |
| 2007 | 4 | 4 |
| 2008 | 4 | 13 |
| 2009 | 5 | 7 |
| 2010 | 9 | 11 |
| 2011 | 3 | 7 |
| 2012 | 4 | 5 |
| 2013 | 12 | 16 |
| 2014 | 8 | 10 |
| 2015 | 2 | 9 |
| 2016 | 6 | 11 |
| 2017 | 8 | 8 |
| 2018 | 8 | 2 |
| 2019 | 4 | 6 |
| 2020 | 8 | 4 |
| 2021 | 1 | 10 |
| 2022 | 4 | 2 |
| 2023 | 9 | 6 |
| 2024 | 0 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for removing hardness and total organic carbon from drinking water25 Aug 2026US 12,715,796 B2Veolia Water Solutions & Technologies Support
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation7 Apr 2026US 12,595,194 B2Evoqua Water Technologies LLC
- Hydromulch composition and method of use thereof15 Jul 2025US 12,359,126 B2KoTon, LLC
- Method for continuous supply of superoxide-containing peracetate oxidant solution28 Nov 2023US 11,827,543 B2Clean Chemistry, Inc.
- Multilayered electrolyte compositions and methods for their preparation and use14 Nov 2023US 11,814,306 B2Purlyte LLC
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation2 Jul 2026US 2026/0184610 A1Evoqua Water Technologies LLC
- System and method for addition and dissolution of minerals to provide a reduction in carbon dioxide emissions and other benefits2 Jul 2026US 2026/0184613 A1D.C. Water & Sewer Authority
- Enabling internet of things (iot) capabilities in legacy water treatment systems12 Mar 2026US 2026/0070811 A1Evoqua Water Technologies LLC
- Composition for soil and method of use thereof23 Oct 2025US 2025/0326971 A1KoTon, LLC
- Use of Flotation for Separation and Thickening of Ballasted Sludge6 Feb 2025US 2025/0042796 A1Evoqua Water Technologies LLC
Most cited
By later US patents
- Method and installation for treating liquid by sedimentation using fine sand62US 4,927,543 AOmnium de Traitements et de Valorisation (OTV) · 1990
- Method of treating water and wastewater with a ballasted flocculation process and a chemical precipitation process50US 6,919,031 B2I. Kruger Inc. · 2005
- Method of dewatering thin stillage processing streams43US 7,497,955 B2Nalco Company · 2009
- Method and system for removing solutes from a fluid using magnetically conditioned coagulation41US 6,099,738 AMicromag S.P.A. · 2000
- Method for the treatment of water by ballasted flocculation and gravity separation with variable function modes41US 7,001,525 B2Otv SA · 2006