G01N 21/00
Investigating or analysing materials by the use of optical means, i.e. using
Official title: Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence)
G01N21/00 (Investigating or analysing materials by the use of optical means, i.e. using) appears on 64,160 US grants and 69,886 published applications in this corpus.
Search patents in G01N- Granted patents
- 64,160
- Published applications
- 69,886
- Assignees
- 18,677
- Inventors
- 119,860
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 299 | 0 |
| 1977 | 254 | 0 |
| 1978 | 212 | 0 |
| 1979 | 161 | 0 |
| 1980 | 256 | 0 |
| 1981 | 283 | 0 |
| 1982 | 179 | 0 |
| 1983 | 215 | 0 |
| 1984 | 252 | 0 |
| 1985 | 321 | 0 |
| 1986 | 309 | 0 |
| 1987 | 475 | 0 |
| 1988 | 403 | 0 |
| 1989 | 513 | 0 |
| 1990 | 472 | 0 |
| 1991 | 585 | 0 |
| 1992 | 602 | 0 |
| 1993 | 533 | 0 |
| 1994 | 595 | 0 |
| 1995 | 644 | 0 |
| 1996 | 579 | 0 |
| 1997 | 594 | 0 |
| 1998 | 849 | 0 |
| 1999 | 797 | 0 |
| 2000 | 822 | 0 |
| 2001 | 825 | 318 |
| 2002 | 856 | 1212 |
| 2003 | 1163 | 1478 |
| 2004 | 1078 | 1796 |
| 2005 | 1042 | 1922 |
| 2006 | 1300 | 2103 |
| 2007 | 1403 | 2045 |
| 2008 | 1429 | 2230 |
| 2009 | 1426 | 2322 |
| 2010 | 1679 | 2468 |
| 2011 | 1611 | 2314 |
| 2012 | 1788 | 2526 |
| 2013 | 1918 | 2978 |
| 2014 | 2169 | 3023 |
| 2015 | 2422 | 3196 |
| 2016 | 2572 | 3190 |
| 2017 | 2757 | 3194 |
| 2018 | 2799 | 3432 |
| 2019 | 3215 | 3744 |
| 2020 | 3228 | 3973 |
| 2021 | 2886 | 3966 |
| 2022 | 2903 | 3814 |
| 2023 | 2730 | 3513 |
| 2024 | 2875 | 3565 |
| 2025 | 2959 | 3076 |
| 2026 | 1923 | 2488 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 21/17Systems in which incident light is modified in accordance with the properties31,409
- G01N 21/84Systems specially adapted for particular applications20,660
- G01N 21/62Systems in which the material investigated is excited whereby it emits light19,537
- G01N 21/75Systems in which material is subjected to a chemical reaction, the progress7,134
- G01N 21/01Arrangements or apparatus for facilitating the optical investigation6,698
Recent patents
- Apparatus and system for analyzing agricultural material6 Oct 2026US 12,751,365 B2Deere & Company
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Microstructure and molecular detection method6 Oct 2026US 12,752,270 B2Korea University Research and Business Foundation
- Sequencing systems including a base unit and removable cartridge6 Oct 2026US 12,752,272 B2EGI Tech (Qing Dao) Co., Limited
- Systems and methods for determining presence and/or characteristics of target analytes in a sample6 Oct 2026US 12,752,273 B2Conservation X Labs, Inc
- Waste tape recovery device8 Oct 2026US 2026/0305894 A1Fuji Corporation
- Sensor having an active surface8 Oct 2026US 2026/0307074 A1Illumina, Inc.
- Fluorescence detector for microfluidic diagnostic system8 Oct 2026US 2026/0307078 A1HandyLab, Inc.
- Integrated device for nucleic acid extraction, amplification and detection8 Oct 2026US 2026/0307079 A1Hefei Dahui Gene Technology Co., Ltd
- Nozzle manifold assembly8 Oct 2026US 2026/0307085 A1The Aerospace Corporation
Most cited
By later US patents
- Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof1,998US 5,143,854 AAffymax Technologies N.V. · 1992
- Blood glucose monitoring system1,824US 5,743,262 AMasimo Corporation · 1998
- Physiological monitor and associated computation, display and communication unit1,769US 6,790,178 B1Healthetech, Inc. · 2004
- Method and apparatus using alternative site glucose determinations to calibrate and maintain noninvasive and implantable analyzers1,598US 6,998,247 B2Sensys Medical, Inc. · 2006
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995