G01N 21/17
Systems in which incident light is modified in accordance with the properties
Official title: Systems in which incident light is modified in accordance with the properties of the material investigated (where the material investigated is optically excited causing a change in wavelength of the incident light G01N21/63)
G01N21/17 (Systems in which incident light is modified in accordance with the properties) appears on 31,409 US grants and 32,782 published applications in this corpus.
Search patents in G01N- Granted patents
- 31,409
- Published applications
- 32,782
- Assignees
- 10,866
- Inventors
- 60,492
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 151 | 0 |
| 1977 | 124 | 0 |
| 1978 | 107 | 0 |
| 1979 | 76 | 0 |
| 1980 | 115 | 0 |
| 1981 | 122 | 0 |
| 1982 | 93 | 0 |
| 1983 | 105 | 0 |
| 1984 | 127 | 0 |
| 1985 | 172 | 0 |
| 1986 | 153 | 0 |
| 1987 | 253 | 0 |
| 1988 | 205 | 0 |
| 1989 | 299 | 0 |
| 1990 | 265 | 0 |
| 1991 | 347 | 0 |
| 1992 | 323 | 0 |
| 1993 | 274 | 0 |
| 1994 | 325 | 0 |
| 1995 | 303 | 0 |
| 1996 | 278 | 0 |
| 1997 | 269 | 0 |
| 1998 | 398 | 0 |
| 1999 | 384 | 0 |
| 2000 | 376 | 0 |
| 2001 | 360 | 139 |
| 2002 | 403 | 569 |
| 2003 | 527 | 754 |
| 2004 | 546 | 918 |
| 2005 | 527 | 950 |
| 2006 | 747 | 1070 |
| 2007 | 790 | 1042 |
| 2008 | 769 | 1077 |
| 2009 | 748 | 1088 |
| 2010 | 862 | 1206 |
| 2011 | 786 | 1112 |
| 2012 | 873 | 1134 |
| 2013 | 937 | 1370 |
| 2014 | 1028 | 1390 |
| 2015 | 1132 | 1560 |
| 2016 | 1236 | 1551 |
| 2017 | 1316 | 1509 |
| 2018 | 1366 | 1677 |
| 2019 | 1651 | 1820 |
| 2020 | 1530 | 1861 |
| 2021 | 1440 | 1808 |
| 2022 | 1373 | 1698 |
| 2023 | 1289 | 1578 |
| 2024 | 1303 | 1556 |
| 2025 | 1360 | 1282 |
| 2026 | 866 | 1063 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 21/25Colour17,018
- G01N 21/47Scattering, i.e. diffuse reflection7,887
- G01N 21/55Specular reflectivity4,321
- G01N 21/21Polarisation-affecting properties2,740
- G01N 21/41Refractivity2,178
- G01N 21/59Transmissivity1,883
- G01N 21/1702With opto-acoustic detection956
- G01N 2021/1793Remote sensingIndexing code631
All 20 subgroupsShow fewer
- G01N 21/1717With a modulation of one or more physical properties of the sample558
- G01N 2021/1765Method using an image detector and processing of image signalIndexing code462
- G01N 2021/178Methods for obtaining spatial resolution of the property being measuredIndexing code393
- G01N 21/171With calorimetric detection267
- G01N 2021/1738Optionally different kinds of measurementsIndexing code248
- G01N 2021/1734Sequential different kinds of measurementsIndexing code119
- G01N 21/19Dichroism119
- G01N 2021/1748Comparative step being essential in the methodIndexing code116
- G01N 2021/1789Time resolvedIndexing code112
- G01N 2021/1761A physical transformation being implied in the methodIndexing code42
- G01N 2021/1757Time modulation of light being essential to the method of light modificationIndexing code35
- G01N 2021/1746Method using tracersIndexing code21
Recent patents
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- Method and system for monitoring liquid-liquid extraction6 Oct 2026US 12,754,120 B2Triad National Security, LLC
- Methods for compact multi-color flow cytometers having compact detection modules6 Oct 2026US 12,754,128 B2Cytek Biosciences, Inc.
- Waste tape recovery device8 Oct 2026US 2026/0305894 A1Fuji Corporation
- Microsystem Comprising a Flexurally Movable Beam and Multiple Stops8 Oct 2026US 2026/0309479 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Sample probe8 Oct 2026US 2026/0309590 A1Teknologian tutkimuskeskus VTT Oy
- Image processing method, image processing device, and program8 Oct 2026US 2026/0309618 A1Nikon Corporation
- Nanosecond-scale photothermal dynamic imaging8 Oct 2026US 2026/0309619 A1Trustees of Boston University
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
- 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
- Tissue interrogating device and methods1,518US 5,769,791 ASextant Medical Corporation · 1998