G01P 3/28
By using pumps
Official title: by using pumps
G01P3/28 (By using pumps) appears on 7 US grants and 4 published applications in this corpus.
Search patents in G01P- Granted patents
- 7
- Published applications
- 4
- Assignees
- 8
- Inventors
- 19
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for engine speed measurement28 Mar 2023US 11,614,456 B2Pratt & Whitney Canada Corp.
- System and method for measuring well flow rate1 Dec 2015US 9,200,509 B2Chevron U.S.A.Inc.
- Method and device for detecting the speed of a pump1 Aug 2006US 7,083,391 B2Robert Bosch GmbH
- Converter for providing a liquid at a measurement pressure corresponding to a rotational speed20 May 1997US 5,630,698 ASiemens Aktiengesellschaft
- Transmission input shaft speed detecting apparatus utilizing oil pump pressure9 Feb 1993US 5,184,506 AJATCO Ltd
- System and method for engine speed measurement25 Jun 2020US 2020/0200787 A1Pratt & Whitney Canada Corp.
- System and Method for Measuring Well Flow Rate12 Dec 2013US 2013/0327520 A1Production Sciences, Inc.
- Method and device for detecting the speed of a pump1 Jul 2004US 2004/0126243 A1Robert Bosch GmbH
- Method of and apparatus for shaft speed detection by monitoring pump output12 Feb 2004US 2004/0029662 A1
Most cited
By later US patents
- Method and device for detecting the speed of a pump14US 7,083,391 B2Robert Bosch GmbH · 2006
- Membrane-air pump adapted to function as a tachometer3US 3,936,237 ADeutsche Vergaser GmbH & Co. K.G. · 1976
- Transmission input shaft speed detecting apparatus utilizing oil pump pressure3US 5,184,506 AJATCO Ltd · 1993
- Fluidic angular velocity sensor2US 4,602,509 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1986