G01N 21/33
Using ultraviolet light
Official title: using ultraviolet light (G01N21/39 takes precedence)
G01N21/33 (Using ultraviolet light) appears on 1,171 US grants and 1,353 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,171
- Published applications
- 1,353
- Assignees
- 888
- Inventors
- 3,108
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 4 |
| 2002 | 13 | 12 |
| 2003 | 8 | 33 |
| 2004 | 25 | 31 |
| 2005 | 19 | 28 |
| 2006 | 25 | 29 |
| 2007 | 27 | 41 |
| 2008 | 27 | 28 |
| 2009 | 21 | 25 |
| 2010 | 20 | 43 |
| 2011 | 31 | 28 |
| 2012 | 29 | 44 |
| 2013 | 25 | 47 |
| 2014 | 42 | 44 |
| 2015 | 29 | 63 |
| 2016 | 49 | 72 |
| 2017 | 54 | 77 |
| 2018 | 60 | 63 |
| 2019 | 80 | 81 |
| 2020 | 67 | 88 |
| 2021 | 74 | 96 |
| 2022 | 62 | 89 |
| 2023 | 67 | 78 |
| 2024 | 69 | 83 |
| 2025 | 65 | 73 |
| 2026 | 50 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for monitoring fluids8 Sep 2026US 12,730,063 B2H2Ok Innovations Inc.
- Flow cells and methods for analyzing liquids at vacuum ultraviolet (VUV) wavelengths1 Sep 2026US 12,723,972 B2VUV Analytics, Inc.
- Optical analysis device and combined analysis device1 Sep 2026US 12,723,978 B2HORIBA Advanced Techno, Co., Ltd.
- Equipment for measuring the content of organic substances in water emulsions and solutions25 Aug 2026US 12,716,830 B2PBT Works s.r.o.
- Recycling optical cavity, optical system, and optical construction18 Aug 2026US 12,710,368 B23M Innovative Properties Company
- Flow cells and methods for analyzing liquids at vacuum ultraviolet (vuv) wavelengths1 Oct 2026US 2026/0298802 A1VUV Analytics, Inc.
- Systems and methods for calibrating emissions monitoring equipment1 Oct 2026US 2026/0298814 A1Cemtek Environmental, Inc.
- Optical analysis device3 Sep 2026US 2026/0259134 A1Ebara Jitsugyo Co., Ltd.
- Multi-functional rhodamine 6g derivative attached with 2-thiazolylethyl amine and preparation method and use thereof20 Aug 2026US 2026/0242389 A1Soochow University
- Concentration measurement device and method for detecting abnormality in same20 Aug 2026US 2026/0243664 A1Fujikin Incorporated
Most cited
By later US patents
- Noninvasive measurement of glucose through the optical properties of tissue608US 6,990,364 B2Sensys Medical, Inc. · 2006
- Measuring in-situ UV intensity in UV cure tool564US 7,935,940 B1Novellus Systems, Inc. · 2011
- Photolysis system for fast-response NO2 measurements and method therefor433US 6,346,419 B1The United States of America as represented by the Department of Commerce · 2002
- Disinfecting articles with ozone235US 10,842,897 B2éClair Medical Systems, Inc. · 2020
- Miniature spectrometer179US 6,343,227 B12002