G01P 3/56
For comparing two speeds
Official title: for comparing two speeds
G01P3/56 (For comparing two speeds) appears on 167 US grants and 52 published applications in this corpus.
Search patents in G01P- Granted patents
- 167
- Published applications
- 52
- Assignees
- 129
- Inventors
- 327
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 12 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 1 |
| 2004 | 4 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 3 |
| 2009 | 2 | 4 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 2 | 4 |
| 2015 | 5 | 4 |
| 2016 | 0 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 2 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Washing machine and method for controlling the same4 Aug 2026US 12,698,581 B2Samsung Electronics Co., Ltd.
- Accident detection and recovery1 Apr 2025US 12,266,017 B1Allstate Insurance Company
- Twist insensitive mounting differential speed sensor with direction detection24 Oct 2023US 11,796,557 B2Infineon Technologies AG
- Method for determining the tension of a drive belt27 Dec 2022US 11,536,741 B2Gebr. Bode GmbH & Co. KG
- Vehicle monitoring system19 Oct 2021US 11,148,689 B2Transportation IP Holdings, LLC
- Methods and systems for monitoring, diagnosis and prediction of health of an industrial machine having a rotating component12 Feb 2026US 2026/0043711 A1Enertics Inc.
- Accident Detection and Recovery7 Aug 2025US 2025/0252502 A1Allstate Insurance Company
- Washing machine and method for controlling the same1 May 2025US 2025/0137186 A1Samsung Electronics Co., Ltd.
- Rotational joint and device having same27 Feb 2025US 2025/0067302 A1Shanghai Flexiv Robotics Technology Co., Ltd.
- System and method for monitoring the speed of an inspection unit of a sewer inspection and/or maintenance system14 Nov 2024US 2024/0377426 A1iPEK International GmbH
Most cited
By later US patents
- Accident detection and recovery266US 9,773,281 B1Allstate Insurance Company · 2017
- Motor speed indicator215US 3,932,812 APeripheral Equipment Corporation · 1976
- Optical data collection apparatus and method used with moving members127US 4,724,317 ABaxter Travenol Laboratories, Inc. · 1988
- Slip speed sensor for a multiple link belt drive system105US 4,575,367 AGeneral Motors Corporation · 1986
- Method and apparatus for measuring aerodynamic characteristics of a golf ball92US 6,286,364 B1Acushnet Company · 2001