G01L 23/085
By measuring fluctuations of starter motor current or of battery voltage
Official title: {by measuring fluctuations of starter motor current or of battery voltage (battery testing arrangements G01R31/36; testing of electrical installation on transport means G01R31/005; battery testing arrangements G01R31/36)}
G01L23/085 (By measuring fluctuations of starter motor current or of battery voltage) appears on 17 US grants and 6 published applications in this corpus.
Search patents in G01L- Granted patents
- 17
- Published applications
- 6
- Assignees
- 14
- Inventors
- 38
- Latest grant
- 27 Dec 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 3 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Probe for measuring pressure oscillations in the combustor of a gas turbine27 Dec 2016US 9,528,898 B2General Electric Technology GmbH
- Determining engine cylinder contribution from indexed engine data23 Oct 2007US 7,286,927 B2Snap-on Incorporated
- Determining engine cylinder contribution from indexed engine data30 Jan 2007US 7,171,302 B2Snap-on Incorporated
- Decoding an alternator output signal9 Jan 2007US 7,162,397 B2Snap-on Incorporated
- Apparatus and method for measuring relative compression2 Sep 1997US 5,663,493 AFluke Corporation
- Electronic devices for use in a vehicle and methods of operating the same18 Jul 2019US 2019/0219638 A1S. C. Johnson & Son, Inc.
- Probe for measuring pressure oscillations in the combustor of a gas turbine24 Sep 2015US 2015/0268121 A1General Electric Technology GmbH
- Determining engine cylinder contribution from indexed engine data8 Feb 2007US 2007/0032939 A1Snap-on Incorporated
- Decoding an alternator output signal21 Dec 2006US 2006/0287785 A1Snap-on Incorporated
- Determining engine cylinder contribution from indexed engine data10 Nov 2005US 2005/0251321 A1Snap-on Incorporated
Most cited
By later US patents
- Method and apparatus for testing internal combustion engines30US 4,809,540 AAVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik mbH Prof. Dr. Dr. h. c. Hans List · 1989
- Internal combustion engine combustion chamber pressure sensing apparatus29US 4,491,110 ARobert Bosch GmbH · 1985
- Relative compression of an internal combustion engine21US 4,050,296 AUnited Technologies Corporation · 1977
- Compression testing apparatus16US 4,027,532 ASun Electric Corporation · 1977
- Apparatus and method for measuring relative compression15US 5,663,493 AFluke Corporation · 1997