C02F 2209/19
So4-s
C02F2209/19 (So4-s) appears on 17 US grants and 36 published applications in this corpus.
Search patents in C02F- Granted patents
- 17
- Published applications
- 36
- Assignees
- 24
- Inventors
- 103
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 3 |
| 2022 | 0 | 2 |
| 2023 | 1 | 10 |
| 2024 | 2 | 3 |
| 2025 | 3 | 0 |
| 2026 | 2 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Use of a chlorine dioxide precursor for controlling ion metabolism of bacteria in cooling water systems5 May 2026US 12,617,701 B2Ecolab USA Inc.
- Methods for decreasing calcium sulfate precipitation in produced water3 Mar 2026US 12,565,433 B2Saudi Arabian Oil Company
- Utilization of biogas scrubber in anaerobic membrane bioreactor systems18 Nov 2025US 12,472,465 B2Evoqua Water Technologies Canada Ltd.
- Removal of sulfate from seawater21 Oct 2025US 12,448,307 B2Saudi Arabian Oil Company
- Method of sulfate removal from seawater using high salinity produced water23 Sep 2025US 12,421,142 B2Saudi Arabian Oil Company
- Wastewater treatment system5 Mar 2026US 2026/0062325 A1Terracle Co., Ltd.
- Method and system for controlling corrosion inhibitor feed5 Mar 2026US 2026/0062815 A1Chemtreat, Inc.
- Apparatus for treating wastewater and method of treating wastewater29 Jan 2026US 2026/0028255 A1Samsung Electronics Co., Ltd.
- Method and system for normalization of seawater samples15 Aug 2024US 2024/0274242 A1ACWA POWER Company
- Controlled Removal of Ions from Aqueous Fluid8 Aug 2024US 2024/0262723 A1The Water Company LLC
Most cited
By later US patents
- Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems21US 7,462,284 B2University of Maryland Biotechnology Institute · 2008
- Systems and methods for water treatment and remediation7US 8,246,829 B22012
- In situ bioremediation of contaminated groundwater using electron acceptor salts6US 8,986,545 B2Chevron U.S.A.Inc. · 2015
- Co-producing apparatus for salt and fresh water and co-producing method of the same2US 8,795,531 B2Mitsubishi Heavy Industries, Ltd. · 2014
- Device and method for holding water for accommodating and growing aquatic organisms1US 6,830,681 B2Ecodeco B.V. · 2004