G01P 3/4807
By using circuits for the detection of the pulses delivered by the
Official title: {by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine}
G01P3/4807 (By using circuits for the detection of the pulses delivered by the) appears on 48 US grants and 9 published applications in this corpus.
Search patents in G01P- Granted patents
- 48
- Published applications
- 9
- Assignees
- 39
- Inventors
- 83
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for estimating, by means of measurements with an inductive sensor, the time for which an endothermic motor has operated at the predetermined speeds, and apparatus for implementing such method28 Jan 2025US 12,209,887 B2Emak S.P.A.
- Method for assessing a rotational speed of an engine3 Mar 2020US 10,578,635 B2Schneider Electric Industries SAS
- Virtual tachometers based on time series filtering15 Oct 2019US 10,444,254 B2Sikorsky Aircraft Corporation
- Direct current motor controlling apparatus and method thereof16 Apr 2013US 8,421,384 B2Samsung Electronics Co., Ltd.
- Non-contact tachometer and sensor26 Mar 2013US 8,405,384 B1Zulia Technologies Inc.
- Method for estimating, by means of measurements with an inductive sensor, the time for which an endothermic motor has operated at the predetermined speeds, and apparatus for implementing such method29 Jun 2023US 2023/0204390 A1Emak S.P.A.
- Method for assessing a rotational speed of an engine30 Nov 2017US 2017/0343575 A1Schneider Electric Industries SAS
- Virtual tachometers based on time series filtering23 Nov 2017US 2017/0336430 A1Sikorsky Aircraft Corporation
- Direct current motor controlling apparatus and method thereof10 Jun 2010US 2010/0142932 A1Samsung Electronics Co., Ltd.
- Method for determining traffic conditions11 Mar 2010US 2010/0063714 A1International Business Machines Corporation
Most cited
By later US patents
- Correction of systematic position-sensing errors in internal combustion engines46US 5,117,681 AFord Motor Company · 1992
- Tachometer45US 6,868,369 B2Innova Electronics Corporation · 2005
- Clamp mechanism for power line mounted monitoring device20US 4,646,006 A1987
- Tachometer15US 4,553,093 AYazaki Sogyo Kabushiki Kaisha · 1985
- Spark plug firing sensor with capacitive coupling and optical pickup15US 5,208,541 A1993