G01J 1/1626
Arrangements with two photodetectors, the signals of which are compared
Official title: {Arrangements with two photodetectors, the signals of which are compared}
G01J1/1626 (Arrangements with two photodetectors, the signals of which are compared) appears on 281 US grants and 205 published applications in this corpus.
Search patents in G01J- Granted patents
- 281
- Published applications
- 205
- Assignees
- 219
- Inventors
- 624
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 9 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 5 | 1 |
| 2004 | 2 | 5 |
| 2005 | 4 | 4 |
| 2006 | 2 | 3 |
| 2007 | 3 | 3 |
| 2008 | 4 | 6 |
| 2009 | 6 | 11 |
| 2010 | 4 | 12 |
| 2011 | 4 | 6 |
| 2012 | 11 | 9 |
| 2013 | 10 | 8 |
| 2014 | 13 | 19 |
| 2015 | 8 | 10 |
| 2016 | 5 | 8 |
| 2017 | 12 | 7 |
| 2018 | 12 | 16 |
| 2019 | 12 | 18 |
| 2020 | 14 | 16 |
| 2021 | 11 | 13 |
| 2022 | 16 | 11 |
| 2023 | 6 | 8 |
| 2024 | 7 | 5 |
| 2025 | 6 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01J 2001/1636One detector directly monitoring the sourceIndexing code40
- G01J 2001/1657One signal being spectrally modifiedIndexing code10
- G01J 2001/1652One detector being transparent before the other oneIndexing code8
- G01J 2001/1663Two detectors of different sensitivityIndexing code8
- G01J 2001/1647One signal maintained constantIndexing code5
- G01J 2001/1631Bridge circuitIndexing code4
Recent patents
- Optical concentration measuring device and signal processor29 Sep 2026US 12,747,983 B2Asahi Kasei Microdevices Corporation
- SPAD-based photodetectors1 Jul 2025US 12,345,569 B2ams-OSRAM International GmbH
- Device and method for measuring semiconductor-based light sources24 Jun 2025US 12,339,162 B2Instrument Systems Corporation
- Inadvertent operations in touchless lavatory24 Jun 2025US 12,339,417 B2B/E Aerospace, Inc.
- Sensing system for the detection of electromagnetic radiation on an electronic device10 Jun 2025US 12,326,360 B2Ams AG
- Ambient Light Sensor28 May 2026US 2026/0146889 A1Sensortek Technology Corp.
- Beam profiler certification and calibration23 Oct 2025US 2025/0327740 A1The Boeing Company
- Optical concentration measuring device and signal processor11 Sep 2025US 2025/0283756 A1Asahi Kasei Microdevices Corporation
- Quantum meta-device for ultrasensitive displacement metrology5 Dec 2024US 2024/0402616 A1City University of Hong Kong
- Ambient light detection method and electronic device25 Jul 2024US 2024/0247978 A1Honor Device Co., Ltd.
Most cited
By later US patents
- Methods and devices for detecting intensity of light with translucent detector471US 10,750,984 B2Cercacor Laboratories, Inc. · 2020
- Vehicle equipment control with semiconductor light sensors341US 6,379,013 B1Gentex Corporation · 2002
- Method of calibrating a daylight sensor318US 8,410,706 B2Lutron Electronics Co., Inc. · 2013
- Noninvasive device for photoelectrically measuring the property of arterial blood250US 4,586,513 AMinolta Camera Kabushiki Kaisha · 1986
- Vehicle equipment control with semiconductor light sensors245US 6,742,904 B2Gentex Corporation · 2004