G01J 1/00
Photometry
Official title: Photometry, e.g. photographic exposure meter (spectrophotometry G01J3/00; specially adapted for radiation pyrometry G01J5/00 {; exposure meters built in cameras G03B17/06})
G01J1/00 (Photometry) appears on 9,949 US grants and 9,841 published applications in this corpus.
Search patents in G01J- Granted patents
- 9,949
- Published applications
- 9,841
- Assignees
- 3,888
- Inventors
- 20,217
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 49 | 0 |
| 1977 | 53 | 0 |
| 1978 | 35 | 0 |
| 1979 | 18 | 0 |
| 1980 | 31 | 0 |
| 1981 | 44 | 0 |
| 1982 | 44 | 0 |
| 1983 | 25 | 0 |
| 1984 | 42 | 0 |
| 1985 | 35 | 0 |
| 1986 | 47 | 0 |
| 1987 | 73 | 0 |
| 1988 | 66 | 0 |
| 1989 | 93 | 0 |
| 1990 | 74 | 0 |
| 1991 | 101 | 0 |
| 1992 | 92 | 0 |
| 1993 | 82 | 0 |
| 1994 | 60 | 0 |
| 1995 | 70 | 0 |
| 1996 | 71 | 0 |
| 1997 | 56 | 0 |
| 1998 | 80 | 0 |
| 1999 | 81 | 0 |
| 2000 | 78 | 0 |
| 2001 | 81 | 35 |
| 2002 | 115 | 109 |
| 2003 | 111 | 139 |
| 2004 | 120 | 172 |
| 2005 | 93 | 209 |
| 2006 | 186 | 257 |
| 2007 | 155 | 217 |
| 2008 | 170 | 241 |
| 2009 | 196 | 281 |
| 2010 | 190 | 254 |
| 2011 | 178 | 309 |
| 2012 | 222 | 333 |
| 2013 | 281 | 437 |
| 2014 | 366 | 532 |
| 2015 | 436 | 550 |
| 2016 | 524 | 565 |
| 2017 | 496 | 596 |
| 2018 | 560 | 616 |
| 2019 | 646 | 612 |
| 2020 | 556 | 584 |
| 2021 | 548 | 585 |
| 2022 | 515 | 602 |
| 2023 | 483 | 495 |
| 2024 | 542 | 480 |
| 2025 | 412 | 388 |
| 2026 | 267 | 243 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01J 1/42Photometry: using electric radiation detectors7,174
- G01J 1/02Details4,637
- G01J 1/10Photometry: by comparison with reference light or electric value provisionally void1,359
- G01J 1/58Photometry: using luminescence generated by light300
- G01J 1/48Photometry: using chemical effects141
- G01J 1/38Photometry: using wholly visual means14
- G01J 1/56Photometry: using radiation pressure or radiometer effect14
- G01J 1/60Photometry: by measuring the pupil of the eye4
Recent patents
- Photometric process measurement arrangement and a method for performing a photometric measurement6 Oct 2026US 12,754,066 B2Hach Lange GmbH
- Polarization independent optoelectronic device and method6 Oct 2026US 12,754,067 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Dual-band optical antenna for subwavelength wireless networks6 Oct 2026US 12,754,068 B2Abu Dhabi University
- Laser measurement apparatus having a removable and replaceable beam dump6 Oct 2026US 12,754,069 B2Ophir Optronics Solutions Ltd.
- Image sensor and electronic device6 Oct 2026US 12,754,070 B2Huawei Technologies Co., Ltd.
- Optical cra detector unit, multispectral sensor system, and method for light sensing8 Oct 2026US 2026/0309542 A1ams-OSRAM AG
- Determining ambient light levels8 Oct 2026US 2026/0309543 A1Mobileye Vision Technologies Ltd.
- Optical Detector Unit, UV Index Sensor, and Method for Multispectral Light Sensing, in particular for determining the UV Index8 Oct 2026US 2026/0309544 A1ams-OSRAM AG
- Light-detecting device and electronic apparatus8 Oct 2026US 2026/0309545 A1Sony Semiconductor Solutions Corporation
- Method and apparatus for an adaptable vehicle light fixture8 Oct 2026US 2026/0313768 A1Nacho LED LLC
Most cited
By later US patents
- Automatic rearview mirror system using a photosensor array1,778US 5,550,677 ADonnelly Corporation · 1996
- Rearview vision system for vehicle including panoramic view1,778US 5,670,935 ADonnelly Corporation · 1997
- Display enhancements for vehicle vision system1,367US 5,949,331 ADonnelly Corporation · 1999
- Automatic rearview mirror, vehicle lighting control and vehicle interior monitoring system using a photosensor array1,303US 5,877,897 ADonnelly Corporation · 1999
- Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample1,199US 5,321,501 AMassachusetts Institute of Technology · 1994