G01P 3/68
Using optical means, i.e. using infrared, visible, or ultraviolet light
Official title: using optical means, i.e. using infrared, visible, or ultraviolet light (G01P3/80 takes precedence {; by reflection of waves G01S17/58})
G01P3/68 (Using optical means, i.e. using infrared, visible, or ultraviolet light) appears on 264 US grants and 213 published applications in this corpus.
Search patents in G01P- Granted patents
- 264
- Published applications
- 213
- Assignees
- 223
- Inventors
- 653
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 11 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 4 |
| 2003 | 6 | 6 |
| 2004 | 7 | 18 |
| 2005 | 10 | 8 |
| 2006 | 6 | 9 |
| 2007 | 8 | 7 |
| 2008 | 6 | 11 |
| 2009 | 7 | 7 |
| 2010 | 6 | 13 |
| 2011 | 6 | 11 |
| 2012 | 11 | 6 |
| 2013 | 7 | 6 |
| 2014 | 6 | 10 |
| 2015 | 11 | 3 |
| 2016 | 2 | 11 |
| 2017 | 11 | 10 |
| 2018 | 7 | 9 |
| 2019 | 12 | 10 |
| 2020 | 9 | 12 |
| 2021 | 10 | 12 |
| 2022 | 10 | 8 |
| 2023 | 10 | 8 |
| 2024 | 7 | 8 |
| 2025 | 7 | 3 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotational speed estimation method for incremental encoder29 Sep 2026US 12,748,125 B2Artery Technology Co., Ltd.
- Travel speed measurement and motion analysis of high-speed laser motion systems28 Jul 2026US 12,693,305 B2
- Optical gate and method for determining a velocity vector of a spherical projectile21 Jul 2026US 12,687,559 B2Budapesti Muszaki és Gazdaságtudományi Egyetem (Budapest University of Technology and Economics)
- Data age reduction2 Jun 2026US 12,644,692 B2Zygo Corporation
- Method and apparatus for determining the speed of travel of elongated bars with surface texture24 Feb 2026US 12,561,817 B1OG Technologies, Inc.
- Real-time cable speed and depth measurements based on optical measurements27 Aug 2026US 2026/0251439 A1Schlumberger Technology Corporation
- Calibration device for a laser velocimeter23 Apr 2026US 2026/0110785 A1
- Device for detecting the speed and the length of a corrugated pipe and coiler machine for packing corrugated tubes9 Apr 2026US 2026/0097924 A1Sica S.P.A.
- Method for verifying timestamps delivered by a traffic enforcement unit26 Jun 2025US 2025/0209211 A1Idemia Identity & Security France
- Method for measuring the speed of a vehicle29 May 2025US 2025/0172582 A1Transport Analysis Ltd
Most cited
By later US patents
- Electro-optical range finding and speed detection system507US 5,642,299 A1997
- Method and apparatus for protecting motor vehicle occupants191US 5,118,134 ARobert Bosch GmbH · 1992
- System for detecting a position of a movable object without contact106US 5,698,861 AKonami Corporation · 1997
- System for monitoring vehicles having a start and a stop pair of beams93US 5,298,738 A1994
- Detecting target movement84US 5,194,908 AComputing Devices Canada Ltd. · 1993