F04C 19/001
General arrangements, plants, flowsheets
Official title: {General arrangements, plants, flowsheets}
F04C19/001 (General arrangements, plants, flowsheets) appears on 41 US grants and 42 published applications in this corpus.
Search patents in F04C- Granted patents
- 41
- Published applications
- 42
- Assignees
- 27
- Inventors
- 84
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 4 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 2 | 4 |
| 2012 | 4 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 3 | 5 |
| 2019 | 0 | 1 |
| 2020 | 5 | 3 |
| 2021 | 3 | 6 |
| 2022 | 0 | 1 |
| 2023 | 3 | 3 |
| 2024 | 3 | 3 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Control of liquid ring pump7 Jan 2025US 12,188,473 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Control of operating liquid flow into a liquid ring pump22 Oct 2024US 12,123,412 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Liquid ring pump control16 Jul 2024US 12,038,007 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Degassing system, a degassing tower, and a water system having the same6 Feb 2024US 11,891,310 B2Changxin Memory Technologies, Inc.
- Liquid ring pump control28 Nov 2023US 11,828,285 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Chemical vapor deposition apparatus26 Jun 2025US 2025/0207256 A1
- Liquid ring rotor11 Jul 2024US 2024/0229816 A9
- Control of liquid ring pump25 Apr 2024US 2024/0133380 A1Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Liquid ring rotor25 Apr 2024US 2024/0133394 A1
- Control of operating liquid flow into a liquid ring pump19 Oct 2023US 2023/0332601 A1Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
Most cited
By later US patents
- Control for liquid ring vacuum pumps94US 4,655,688 AITT Industries, Inc. · 1987
- Liquid-ring vacuum pump preceded by a precompressor30US 4,484,457 ASiemens Aktiengesellschaft · 1984
- Water ring vacuum pump28US 4,946,349 AKawasaki Jukogyo Kabushiki Kaisha · 1990
- Wastewater treatment process with an ozone contactor23US 5,043,079 ASolarchem Enterprises Inc. · 1991
- Method for compressing mixed gas consisting of combustible gas and air17US 4,087,208 AMitsubishi Jukogyo Kabushiki Kaisha · 1978