C02F 3/1284
Mixing devices
Official title: {Mixing devices}
C02F3/1284 (Mixing devices) appears on 193 US grants and 121 published applications in this corpus.
Search patents in C02F- Granted patents
- 193
- Published applications
- 121
- Assignees
- 114
- Inventors
- 343
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 4 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 4 |
| 2007 | 3 | 1 |
| 2008 | 3 | 4 |
| 2009 | 4 | 3 |
| 2010 | 3 | 7 |
| 2011 | 0 | 2 |
| 2012 | 4 | 4 |
| 2013 | 4 | 10 |
| 2014 | 1 | 5 |
| 2015 | 7 | 8 |
| 2016 | 4 | 9 |
| 2017 | 4 | 5 |
| 2018 | 6 | 2 |
| 2019 | 5 | 4 |
| 2020 | 7 | 10 |
| 2021 | 5 | 13 |
| 2022 | 7 | 6 |
| 2023 | 4 | 6 |
| 2024 | 4 | 2 |
| 2025 | 4 | 4 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for cultivation of oxygenic photogranule16 Jun 2026US 12,655,049 B2University of Massachusetts
- Systems and methods for creating and segmenting treatment processes12 May 2026US 12,623,938 B2Enviromix, Inc.
- Wastewater purification apparatus and process for purifying wastewater28 Apr 2026US 12,612,320 B2Invent Umwelt-Und Verfahrenstechnik AG
- Device for injecting fluid into a liquid, method for cleaning said device, and effluent treatment installation13 Jan 2026US 12,521,685 B2Vigie Groupe
- Chemical sewage treatment and reuse system30 Dec 2025US 12,509,377 B2Shanghai Yingshan Environmental Protection Technology Co., Ltd
- Systems and methods for creating and segmenting treatment processes10 Sep 2026US 2026/0265095 A1Enviromix, Inc.
- Apparatus and method for biological treatment of organic wastewater21 Aug 2025US 2025/0263319 A1Ebara Jitsugyo Co., Ltd.
- Method for treating high-concentration fermentation by-products generated in amino acid fermentation process17 Jul 2025US 2025/0230082 A1Cj Cheiljedang Corporation
- Wastewater Biological Selector System and Methods for Treating Wastewater Process Fluid19 Jun 2025US 2025/0197262 A1Red Valve Company, Inc.
- Adjustable gas siphon for mixing densified solids in water systems1 May 2025US 2025/0135417 A1Hampton Roads Sanitation District
Most cited
By later US patents
- Thermophilic aerobic waste treatment system162US 5,656,155 AIP Holding Company · 1997
- Modular shipboard membrane bioreactor system for combined wastewater streams98US 5,254,253 AZenon Environmental Inc. · 1993
- Method and apparatus for in situ groundwater remediation82US 5,302,286 AThe Board of Trustees of the Leland Stanford Junior University · 1994
- Treatment of liquid69US 4,163,712 ABOC Limited · 1979
- Apparatus and process for distributed treatment of wastewater66US 5,647,986 A1997