G01N 30/74
Optical detectors
Official title: Optical detectors {(measurement of intensity, velocity, spectral content, polarisation, or phase of infrared, visible or ultraviolet light G01J)}
G01N30/74 (Optical detectors) appears on 850 US grants and 876 published applications in this corpus.
Search patents in G01N- Granted patents
- 850
- Published applications
- 876
- Assignees
- 519
- Inventors
- 2,159
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 14 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 18 | 0 |
| 1990 | 14 | 0 |
| 1991 | 21 | 0 |
| 1992 | 20 | 0 |
| 1993 | 16 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 10 | 0 |
| 1997 | 14 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 16 | 2 |
| 2002 | 11 | 11 |
| 2003 | 9 | 10 |
| 2004 | 6 | 22 |
| 2005 | 12 | 27 |
| 2006 | 7 | 7 |
| 2007 | 12 | 18 |
| 2008 | 17 | 17 |
| 2009 | 13 | 19 |
| 2010 | 7 | 16 |
| 2011 | 13 | 23 |
| 2012 | 16 | 21 |
| 2013 | 11 | 24 |
| 2014 | 16 | 30 |
| 2015 | 21 | 35 |
| 2016 | 25 | 37 |
| 2017 | 23 | 47 |
| 2018 | 41 | 70 |
| 2019 | 40 | 53 |
| 2020 | 39 | 48 |
| 2021 | 32 | 61 |
| 2022 | 52 | 70 |
| 2023 | 33 | 59 |
| 2024 | 50 | 54 |
| 2025 | 36 | 62 |
| 2026 | 26 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for delivering an API-containing liquid to an edible substrate6 Oct 2026US 12,751,915 B2Transport Authority, Inc.
- Analysis device and analysis method for quality index of natural gas product and application6 Oct 2026US 12,754,171 B2PetroChina Company Limited
- Flow cells and methods for analyzing liquids at vacuum ultraviolet (VUV) wavelengths1 Sep 2026US 12,723,972 B2VUV Analytics, Inc.
- Electron capture detector operating with a scintillation crystal18 Aug 2026US 12,710,404 B2Fox Robotics Laboratuvar Teknoloji Hizmetleri Sanayi Limited Sirketi
- Analysis of oligosaccharides using a liquid chromatography system and a chromatographic column in which the LC system and column's internal metal surface has been modified with a layer of inert material14 Jul 2026US 12,680,988 B2Waters Technologies Corporation
- Flow cells and methods for analyzing liquids at vacuum ultraviolet (vuv) wavelengths1 Oct 2026US 2026/0298802 A1VUV Analytics, Inc.
- Metastable ionisation and emission detector, and related methods3 Sep 2026US 2026/0259183 A19518-1236 Quebec Inc.
- Automated group separations of complex mixtures with gel filtration pipette tips27 Aug 2026US 2026/0249210 A1Dpx Technologies, Inc.
- Method for analyzing oral care composition13 Aug 2026US 2026/0235563 A1Shimadzu Corporation
- Method for simultaneously detecting four alkaloids and 10 catechin components in tea23 Jul 2026US 2026/0210918 A1Tea Research Institute, Guangdong Academy of Agricultural Sciences
Most cited
By later US patents
- Silicon semiconductor wafer for analyzing micronic biological samples904US 4,908,112 AE. I. Du Pont de Nemours and Company · 1990
- Laser excited confocal microscope fluorescence scanner and method491US 5,091,652 AThe Regents of the University of California · 1992
- Microfabricated diffusion-based chemical sensor360US 5,716,852 AUniversity of Washington · 1998
- Microfabricated diffusion-based chemical sensor290US 5,972,710 AUniversity of Washington · 1999
- Simultaneous analyte determination and reference balancing in reference T-sensor devices226US 5,948,684 AUniversity of Washington · 1999