C02F 2209/20
Total organic carbon [toc]
Official title: Total organic carbon [TOC]
C02F2209/20 (Total organic carbon [toc]) appears on 166 US grants and 268 published applications in this corpus.
Search patents in C02F- Granted patents
- 166
- Published applications
- 268
- Assignees
- 170
- Inventors
- 614
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 10 |
| 2004 | 3 | 5 |
| 2005 | 7 | 4 |
| 2006 | 1 | 3 |
| 2007 | 2 | 3 |
| 2008 | 1 | 6 |
| 2009 | 5 | 5 |
| 2010 | 2 | 8 |
| 2011 | 2 | 15 |
| 2012 | 8 | 9 |
| 2013 | 7 | 16 |
| 2014 | 11 | 14 |
| 2015 | 7 | 10 |
| 2016 | 5 | 17 |
| 2017 | 6 | 18 |
| 2018 | 12 | 11 |
| 2019 | 19 | 9 |
| 2020 | 8 | 8 |
| 2021 | 10 | 14 |
| 2022 | 6 | 18 |
| 2023 | 6 | 14 |
| 2024 | 10 | 17 |
| 2025 | 8 | 17 |
| 2026 | 7 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water treatment apparatus and water treatment method6 Oct 2026US 12,753,097 B2Organo Corporation
- UV reaction apparatus for treating waste liquid caused by system decontamination in nuclear power plant18 Aug 2026US 12,709,556 B2Korea Hydro & Nuclear Power Co., Ltd.
- Method and system for the efficient and sustainable electrochemical treatment of wastewater14 Jul 2026US 12,679,752 B2Axine Water Technologies Inc.
- Ultrapure water production system, semiconductor processing system including the same, and semiconductor fabrication method using the same23 Jun 2026US 12,662,405 B2Samsung Electronics Co., Ltd.
- Method for removing ammoniacal nitrogen from hypersaline effluents through a consortium containing high-salinity-resistant heterotrophic nitrifying and aerobic denitrifying microorganisms12 May 2026US 12,623,941 B2Petroleo Brasileiro S.A. - Petrobras
- Dynamic control of lithium production facility using model predictive controller1 Oct 2026US 2026/0297703 A1ExxonMobil Technology and Engineering Company
- Methods and systems for treating aqueous effluent27 Aug 2026US 2026/0250170 A1Gradiant Corporation
- Control device, control method, and control program20 Aug 2026US 2026/0242254 A1Yokogawa Electric Corporation
- Analysis device, analysis method, analysis program, and water treatment system20 Aug 2026US 2026/0242255 A1Yokogawa Electric Corporation
- Ultrapure water production apparatus, method of producing ultrapure water, method of managing operation of the ultrapure water production apparatus, and method of measuring colloidal particles13 Aug 2026US 2026/0234029 A1Nomura Micro Science Co., Ltd.
Most cited
By later US patents
- Golf course irrigation water monitoring and treatment system204US 6,620,329 B2Turf Sentry, Inc. · 2003
- Biological treatment of materials92US 5,846,424 AKhudenko Engineering, Inc. · 1998
- In-sewer treatment of wastewater and sludges81US 6,015,496 A2000
- Method and apparatus for processing manure80US 5,290,451 AEcotechniek B. V. · 1994
- Treatment of wastewater and sludges77US 5,616,241 A1997