G01N 21/1717
With a modulation of one or more physical properties of the sample
Official title: {with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance}
G01N21/1717 (With a modulation of one or more physical properties of the sample) appears on 558 US grants and 621 published applications in this corpus.
Search patents in G01N- Granted patents
- 558
- Published applications
- 621
- Assignees
- 412
- Inventors
- 1,335
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 11 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 1 |
| 2002 | 6 | 8 |
| 2003 | 7 | 15 |
| 2004 | 6 | 23 |
| 2005 | 14 | 20 |
| 2006 | 23 | 21 |
| 2007 | 15 | 23 |
| 2008 | 18 | 30 |
| 2009 | 14 | 18 |
| 2010 | 23 | 22 |
| 2011 | 11 | 23 |
| 2012 | 16 | 21 |
| 2013 | 21 | 21 |
| 2014 | 18 | 16 |
| 2015 | 21 | 19 |
| 2016 | 18 | 16 |
| 2017 | 20 | 27 |
| 2018 | 19 | 37 |
| 2019 | 23 | 37 |
| 2020 | 25 | 39 |
| 2021 | 23 | 37 |
| 2022 | 31 | 39 |
| 2023 | 31 | 27 |
| 2024 | 28 | 31 |
| 2025 | 34 | 27 |
| 2026 | 11 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 2021/1725Modulation of properties by lightIndexing code127
- G01N 2021/1731Temperature modulationIndexing code80
- G01N 2021/1727MagnetomodulationIndexing code54
- G01N 2021/1721ElectromodulationIndexing code48
- G01N 2021/1719Carrier modulation in semiconductorsIndexing code30
- G01N 2021/1729PiezomodulationIndexing code23
- G01N 2021/1723Fluid modulationIndexing code21
Recent patents
- Method and apparatus for analyte measurement including material status analysis25 Aug 2026US 12,714,337 B2DiaMonTech AG
- Multipoint photo-acoustic measuring device23 Jun 2026US 12,663,363 B2Neta
- Non-destructive inspection and manufacturing metrology systems and methods16 Jun 2026US 12,656,245 B2Onto Innovation Inc.
- Transient absorption spectrometer using excitation by pulse current2 Jun 2026US 12,644,843 B2University of Science and Technology of China
- Prediction of percentage levels of gases that are undetectable via optical absorption measurements19 May 2026US 12,631,553 B2Schlumberger Technology Corporation
- Atomic absorption spectrophotometer1 Oct 2026US 2026/0298813 A1Shimadzu Corporation
- Video rate mid-infrared photothermal microscopy system using synchronized laser scanning6 Aug 2026US 2026/0227328 A1Trustees of Boston University
- Method and system for fast diagnosis of cancer and other diseases in tissue samples23 Jul 2026US 2026/0210952 A1Scorpido Photonics Inc.
- Method and system for imaging subsurface features inside a substrate9 Jul 2026US 2026/0194452 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Systems and methods for optically determining the concentration of alcohol and extract in a liquid sample9 Jul 2026US 2026/0194453 A1Haffmans B.V.
Most cited
By later US patents
- Active pulse blood constituent monitoring1,235US 5,638,816 AMasimo Corporation · 1997
- Active pulse blood constituent monitoring method1,074US 5,860,919 AMasimo Corporation · 1999
- Active pulse blood constituent monitoring1,027US 6,151,516 AMasimo Laboratories, Inc. · 2000
- Terminal and electronic water-resistance method919US 9,590,433 B2Zte Corporation · 2017
- Procedure, apparatus and detector for the determination of fractional oxygen saturation214US 6,104,938 AInstrumentarium Corp. · 2000