C02F 2301/063
Underpressure, vacuum
C02F2301/063 (Underpressure, vacuum) appears on 217 US grants and 320 published applications in this corpus.
Search patents in C02F- Granted patents
- 217
- Published applications
- 320
- Assignees
- 217
- Inventors
- 646
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 6 |
| 2003 | 6 | 3 |
| 2004 | 2 | 6 |
| 2005 | 5 | 13 |
| 2006 | 3 | 7 |
| 2007 | 6 | 11 |
| 2008 | 7 | 11 |
| 2009 | 6 | 10 |
| 2010 | 5 | 23 |
| 2011 | 9 | 14 |
| 2012 | 13 | 13 |
| 2013 | 11 | 21 |
| 2014 | 8 | 11 |
| 2015 | 12 | 14 |
| 2016 | 15 | 17 |
| 2017 | 8 | 8 |
| 2018 | 6 | 10 |
| 2019 | 5 | 10 |
| 2020 | 11 | 11 |
| 2021 | 8 | 21 |
| 2022 | 17 | 20 |
| 2023 | 10 | 9 |
| 2024 | 9 | 17 |
| 2025 | 12 | 19 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum air lift systems including a fluidic oscillator28 Jul 2026US 12,692,177 B2Searen, LLC
- Methods and systems for treating fluid using a biochemical process under vacuum pressure2 Jun 2026US 12,643,806 B2U.S. Peroxide, LLC
- Water desalination device and method19 May 2026US 12,630,445 B277 Vision Way Ltd
- Methods and systems for treating fluid using a biochemical process under vacuum pressure19 May 2026US 12,630,454 B2U.S. Peroxide, LLC
- Device and method for treating liquid12 May 2026US 12,623,922 B2Millisecond Technologies Corp.
- Ultrapure water processing system with water hammer shock mitigation function17 Sep 2026US 2026/0274710 A1Flowtech Co., Ltd.
- Advanced oxidation system in treatment of contaminants in water and method for treatment of contaminants in water27 Aug 2026US 2026/0250167 A1Beijing Normal University At Zhuhai
- Arrangement and method for treatment of water in a vessel for culture of marine organisms30 Jul 2026US 2026/0217578 A1Searas AS
- Filtration aid compositions and methods of use30 Jul 2026US 2026/0217582 A1Locus Solutions Ipco, LLC
- Waste water treatment system25 Jun 2026US 2026/0175147 A1Altinay Savunma Teknolojileri Anonim Sirketi
Most cited
By later US patents
- System for electrocatalytic treatment of waste water streams55US 4,179,347 AOmnipure, Inc. · 1979
- Precipitation-membrane distillation hybrid system for the treatment of aqueous streams53US 6,365,051 B12002
- Water separation under reduced pressure50US 8,292,272 B2King Fahd University of Petroleum and Minerals · 2012
- Methods to solve alkaline-sulfate scales and related-gases problems34US 7,093,663 B12006
- Electrocoagulation chamber and method33US 6,613,217 B12003