C02F 3/2846
Using upflow anaerobic sludge blanket [uasb] reactors
Official title: {using upflow anaerobic sludge blanket [UASB] reactors}
C02F3/2846 (Using upflow anaerobic sludge blanket [uasb] reactors) appears on 125 US grants and 139 published applications in this corpus.
Search patents in C02F- Granted patents
- 125
- Published applications
- 139
- Assignees
- 104
- Inventors
- 402
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 5 |
| 2004 | 3 | 0 |
| 2005 | 2 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 5 |
| 2008 | 6 | 3 |
| 2009 | 4 | 7 |
| 2010 | 5 | 6 |
| 2011 | 8 | 6 |
| 2012 | 5 | 11 |
| 2013 | 1 | 9 |
| 2014 | 7 | 8 |
| 2015 | 5 | 6 |
| 2016 | 5 | 2 |
| 2017 | 5 | 3 |
| 2018 | 3 | 7 |
| 2019 | 1 | 5 |
| 2020 | 7 | 9 |
| 2021 | 6 | 6 |
| 2022 | 7 | 6 |
| 2023 | 3 | 10 |
| 2024 | 5 | 7 |
| 2025 | 8 | 8 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anaerobic digester with self-delivery of accumulated solids16 Jun 2026US 12,655,048 B2Virginia Tech Intellectual Properties, Inc.
- Bioelectrochemical bioreactor12 May 2026US 12,623,937 B2Universitetet i Sørøst-Norge
- Granular sludge reactor system comprising an external separator30 Dec 2025US 12,509,379 B2Veolia Water Solutions & Technologies Support
- Device and method for treating urban domestic sewage based on two-stage combined process of partial denitrification-anammox23 Dec 2025US 12,503,382 B2Beijing University of Technology
- Method for continuous cleaning of process water in waste paper treatment with control of the content of inorganic solids16 Dec 2025US 12,497,313 B2Meri Environmental Solutions GmbH
- Method for treating refractory wastewater produced in steps for manufacturing pet raw material16 Jul 2026US 2026/0200777 A1National Institute of Advanced Industrial Science and Technology
- Systems and methods for treating a wastewater stream12 Mar 2026US 2026/0070829 A1
- Process for the degradation of one or more hydrocarbons19 Feb 2026US 2026/0049014 A1Paqell B.V.
- Systems and methods of gas infusion for wastewater treatment8 Jan 2026US 2026/0008019 A1Prosper Technologies, LLC
- Two-phase sulfate reduction device and treatment method for preventing sludge calcification20 Nov 2025US 2025/0353766 A1Nanjing University
Most cited
By later US patents
- Method of treating foul water76US 5,744,037 AEbara Corporation · 1998
- Apparatus and method for waste water treatment utilizing granular sludge49US 5,702,604 ASharp Kabushiki Kaisha · 1997
- Process for aerobic treatment of waste water39US 5,972,219 APaques B. V. · 1999
- Optimized nutrient removal from wastewater34US 8,012,352 B1American Water Works Company, Inc. · 2011
- Apparatus and method of circulating a body of fluid containing a mixture of solid waste and water and separating them28US 5,441,634 AEdwards Laboratories, Inc. · 1995