G01N 21/64
Fluorescence
Official title: Fluorescence; Phosphorescence
G01N21/64 (Fluorescence) appears on 14,447 US grants and 18,696 published applications in this corpus.
Search patents in G01N- Granted patents
- 14,447
- Published applications
- 18,696
- Assignees
- 5,625
- Inventors
- 31,240
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 24 | 0 |
| 1978 | 20 | 0 |
| 1979 | 17 | 0 |
| 1980 | 18 | 0 |
| 1981 | 23 | 0 |
| 1982 | 11 | 0 |
| 1983 | 16 | 0 |
| 1984 | 28 | 0 |
| 1985 | 32 | 0 |
| 1986 | 42 | 0 |
| 1987 | 56 | 0 |
| 1988 | 47 | 0 |
| 1989 | 73 | 0 |
| 1990 | 57 | 0 |
| 1991 | 83 | 0 |
| 1992 | 91 | 0 |
| 1993 | 84 | 0 |
| 1994 | 97 | 0 |
| 1995 | 92 | 0 |
| 1996 | 110 | 0 |
| 1997 | 84 | 0 |
| 1998 | 112 | 0 |
| 1999 | 121 | 0 |
| 2000 | 120 | 0 |
| 2001 | 155 | 61 |
| 2002 | 175 | 274 |
| 2003 | 211 | 334 |
| 2004 | 196 | 416 |
| 2005 | 194 | 478 |
| 2006 | 243 | 537 |
| 2007 | 297 | 487 |
| 2008 | 293 | 561 |
| 2009 | 321 | 630 |
| 2010 | 384 | 651 |
| 2011 | 388 | 634 |
| 2012 | 476 | 765 |
| 2013 | 501 | 883 |
| 2014 | 608 | 848 |
| 2015 | 609 | 867 |
| 2016 | 693 | 816 |
| 2017 | 700 | 903 |
| 2018 | 719 | 884 |
| 2019 | 768 | 941 |
| 2020 | 799 | 1125 |
| 2021 | 747 | 1148 |
| 2022 | 788 | 1070 |
| 2023 | 704 | 954 |
| 2024 | 757 | 982 |
| 2025 | 763 | 808 |
| 2026 | 479 | 639 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 21/645Specially adapted constructive features of fluorimeters8,671
- G01N 21/6428Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive6,234
- G01N 2021/6417Spectrofluorimetric devicesIndexing code2,081
- G01N 21/6486Measuring fluorescence of biological material2,007
- G01N 21/6408With measurement of decay time, time resolved fluorescence1,232
- G01N 21/6402Atomic fluorescence438
- G01N 21/6489Photoluminescence of semiconductors406
- G01N 21/6445Measuring fluorescence polarisation285
Recent patents
- 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
- Sequencing systems and methods utilizing curved imaging paths on rotating substrates6 Oct 2026US 12,753,434 B2MGI Tech Co., Ltd.
- Methods for compact multi-color flow cytometers having compact detection modules6 Oct 2026US 12,754,128 B2Cytek Biosciences, Inc.
- Devices and methods for direct-sampling analog time-resolved detection6 Oct 2026US 12,754,136 B2TissueVision, Inc.
- 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
- Sorter devices, detection systems of sorter devices, and related methods8 Oct 2026US 2026/0307110 A1Cimbria S.r.l.
- Continuous scanning optical assembly and method of use thereof8 Oct 2026US 2026/0309624 A1Truvian Sciences, Inc.
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
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995
- Photoluminescent silica-based sensors and methods of use1,435US 8,084,001 B2Cornell Research Foundation, Inc. · 2011
- Arrays of materials attached to a substrate1,410US 5,744,305 AAffymetrix, Inc. · 1998
- Method and devices for laser induced fluorescence attenuation spectroscopy1,152US 6,124,597 ACedars-Sinai Medical Center · 2000