C02F 2209/38
Gas flow rate
C02F2209/38 (Gas flow rate) appears on 209 US grants and 294 published applications in this corpus.
Search patents in C02F- Granted patents
- 209
- Published applications
- 294
- Assignees
- 194
- Inventors
- 658
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 8 |
| 2003 | 4 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 7 |
| 2006 | 0 | 1 |
| 2007 | 1 | 3 |
| 2008 | 6 | 9 |
| 2009 | 2 | 4 |
| 2010 | 4 | 8 |
| 2011 | 2 | 7 |
| 2012 | 4 | 6 |
| 2013 | 5 | 12 |
| 2014 | 4 | 11 |
| 2015 | 9 | 14 |
| 2016 | 10 | 21 |
| 2017 | 14 | 22 |
| 2018 | 12 | 10 |
| 2019 | 13 | 15 |
| 2020 | 9 | 22 |
| 2021 | 12 | 18 |
| 2022 | 22 | 17 |
| 2023 | 10 | 25 |
| 2024 | 15 | 18 |
| 2025 | 19 | 24 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processes and systems for de-watering sludge2 Jun 2026US 12,643,807 B2NewSouth Innovations Pty Limited
- Systems and methods for creating and segmenting treatment processes12 May 2026US 12,623,938 B2Enviromix, Inc.
- Applying chemical oxygen demand and heating value diagnostics to enhance performance of a SCWO process5 May 2026US 12,617,705 B2374Water Inc.
- Bubble size monitoring and control24 Feb 2026US 12,559,389 B2Schlumberger Technology Corporation
- System and method for indirect measurement of oxygen utilization rate and influent load for aeration control24 Feb 2026US 12,559,396 B2Xylem Water Solutions U.S.A., Inc.
- Water treatment device and water treatment method24 Sep 2026US 2026/0285718 A1Organo Corporation
- Anaerobic digester and method of use thereof6 Aug 2026US 2026/0225929 A1Mygug Limited
- Applying chemical oxygen demand and heating value diagnostics to enhance performance of a scwo process16 Jul 2026US 2026/0200782 A1374Water Inc.
- In-situ integrated device for purifying vocs in groundwater and an application method thereof11 Jun 2026US 2026/0159428 A1Chinese Research Academy of Environmental Sciences
- Wastewater zero discharge monitoring method and system30 Apr 2026US 2026/0116785 A1Datang Environment Industry Group Co., Ltd.
Most cited
By later US patents
- Microalgae separator apparatus and method117US 6,524,486 B2Sepal Technologies Ltd. · 2003
- Biological treatment of materials92US 5,846,424 AKhudenko Engineering, Inc. · 1998
- In-sewer treatment of wastewater and sludges81US 6,015,496 A2000
- Treatment of wastewater and sludges77US 5,616,241 A1997
- Process and apparatus for removal of mineral contaminants from water68US 5,096,596 AHellenbrand Water Conditioners, Inc. · 1992