G01N 21/01
Arrangements or apparatus for facilitating the optical investigation
G01N21/01 (Arrangements or apparatus for facilitating the optical investigation) appears on 6,698 US grants and 7,498 published applications in this corpus.
Search patents in G01N- Granted patents
- 6,698
- Published applications
- 7,498
- Assignees
- 3,359
- Inventors
- 15,463
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 20 | 0 |
| 1978 | 14 | 0 |
| 1979 | 10 | 0 |
| 1980 | 29 | 0 |
| 1981 | 24 | 0 |
| 1982 | 13 | 0 |
| 1983 | 20 | 0 |
| 1984 | 20 | 0 |
| 1985 | 19 | 0 |
| 1986 | 37 | 0 |
| 1987 | 56 | 0 |
| 1988 | 56 | 0 |
| 1989 | 53 | 0 |
| 1990 | 45 | 0 |
| 1991 | 57 | 0 |
| 1992 | 73 | 0 |
| 1993 | 56 | 0 |
| 1994 | 59 | 0 |
| 1995 | 73 | 0 |
| 1996 | 61 | 0 |
| 1997 | 53 | 0 |
| 1998 | 73 | 0 |
| 1999 | 71 | 0 |
| 2000 | 79 | 0 |
| 2001 | 84 | 23 |
| 2002 | 59 | 140 |
| 2003 | 98 | 132 |
| 2004 | 85 | 181 |
| 2005 | 81 | 219 |
| 2006 | 119 | 235 |
| 2007 | 138 | 237 |
| 2008 | 145 | 232 |
| 2009 | 150 | 296 |
| 2010 | 181 | 272 |
| 2011 | 180 | 227 |
| 2012 | 206 | 264 |
| 2013 | 218 | 299 |
| 2014 | 219 | 351 |
| 2015 | 254 | 350 |
| 2016 | 292 | 326 |
| 2017 | 311 | 361 |
| 2018 | 317 | 421 |
| 2019 | 348 | 437 |
| 2020 | 380 | 395 |
| 2021 | 320 | 404 |
| 2022 | 309 | 386 |
| 2023 | 293 | 358 |
| 2024 | 303 | 413 |
| 2025 | 321 | 307 |
| 2026 | 186 | 232 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 21/03Cuvette constructions4,967
- G01N 21/15Preventing contamination of the components of the optical system or obstruction of742
- G01N 2021/0106General arrangement of respective partsIndexing code287
- G01N 21/11Filling or emptying of cuvettes210
- G01N 21/13Moving of cuvettes or solid samples to or from the investigating station165
- G01N 2021/0162Using microprocessors for control of a sequence of operationsIndexing code60
- G01N 2021/0193The sample being taken from a stream or flow to the measurementIndexing code50
- G01N 2021/0181Memory or computer-assisted visual determinationIndexing code42
All 9 subgroupsShow fewer
Recent patents
- Systems and methods for determining presence and/or characteristics of target analytes in a sample6 Oct 2026US 12,752,273 B2Conservation X Labs, Inc
- Method for determining a cuvette form correction value6 Oct 2026US 12,754,053 B2Hach Lange GmbH
- Etendue-preserving Raman sampling optics6 Oct 2026US 12,754,130 B2Endress+Hauser Optical Analysis, Inc.
- Biochemical substance analysis system, method, and device6 Oct 2026US 12,754,135 B2MGI Tech Co., Ltd.
- Optical concentration measuring device and signal processor29 Sep 2026US 12,747,983 B2Asahi Kasei Microdevices Corporation
- Continuous scanning optical assembly and method of use thereof8 Oct 2026US 2026/0309624 A1Truvian Sciences, Inc.
- Cartridge providing real-time colorimetric detection and/or turbidimetric detection of microorganisms via image capture on a mobile device8 Oct 2026US 2026/0309632 A1Seethru Diagnostics, LLC
- Optical inspection device, optical inspection system, and optical inspection method8 Oct 2026US 2026/0309635 A1Samsung Display Co., Ltd.
- Specimen testing plate structure, specimen testing apparatus, and specimen testing method1 Oct 2026US 2026/0298779 A1Canon Kabushiki Kaisha
- Optical filtering in absorbance detectors1 Oct 2026US 2026/0298801 A1
Most cited
By later US patents
- Capillary flow device951US 4,963,498 ABiotrack, Inc. · 1990
- Device for use in chemical test procedures873US 5,141,868 AInternationale Octrooi Maatschappij "Octropa" B.V. · 1992
- Fiber-optic physiological probes732US 4,925,268 AAbbott Laboratories · 1990
- Method of sequencing a nucleic acid693US 7,244,559 B2454 Life Sciences Corporation · 2007
- Method of sequencing a nucleic acid643US 7,264,929 B2454 Life Sciences Corporation · 2007