C02F 1/547
Tensides
Official title: {Tensides}
C02F1/547 (Tensides) appears on 62 US grants and 63 published applications in this corpus.
Search patents in C02F- Granted patents
- 62
- Published applications
- 63
- Assignees
- 72
- Inventors
- 211
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 1 | 4 |
| 2019 | 4 | 2 |
| 2020 | 4 | 4 |
| 2021 | 2 | 7 |
| 2022 | 4 | 2 |
| 2023 | 3 | 6 |
| 2024 | 1 | 6 |
| 2025 | 4 | 3 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Process for removal of PFAS from water17 Mar 2026US 12,577,133 B2Chromafora AB
- Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity30 Sep 2025US 12,428,318 B2Ecolab USA Inc.
- Reducing slurry emulsion and foaming in oxidation-reduction sulfur removal processes6 May 2025US 12,291,664 B1Streamline Innovations Inc
- Nanonets for removal of contaminants from aqueous solutions, kits therefor and methods of their use18 Feb 2025US 12,226,750 B2Carbonet Nanotechnologies Inc.
- Contaminant Precipitation Compositions and Methods of Use8 Oct 2026US 2026/0308025 A1Locus Solutions Ipco, LLC
- Method and system for controlling biofouling with fluorescent biodispersant3 Sep 2026US 2026/0257946 A1Chemtreat, Inc.
- Treatment process for pfas-containing compounds7 May 2026US 2026/0125334 A1Heritage Research Group
- Membrane treatment of water containing free oil5 Mar 2026US 2026/0062327 A1Ecolab USA Inc.
- Amphoteric surfactants for injectivity enhancement in saltwater disposal wells22 Jan 2026US 2026/0022042 A1Chemtreat, Inc.
Most cited
By later US patents
- Method for recovering fluorinated emulsifiers from aqueous phases55US 6,706,193 B13M Innovative Properties Company · 2004
- Process for the recovery of fluorinated alkandic acids from wastewater38US 6,518,442 B1Axiva GmbH · 2003
- Flocculation of aqueous media with novel flocculating adjuvant37US 4,565,635 ARhone-Poulenc Specialites Chimiques · 1986
- Removal of heavy metals from waste streams35US 4,758,353 ANalco Chemical Company · 1988
- Quick inverting liquid flocculant32US 6,485,651 B1Ondeo Nalco Company · 2002