G01J 3/26
Using multiple reflection
Official title: using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
G01J3/26 (Using multiple reflection) appears on 1,398 US grants and 1,449 published applications in this corpus.
Search patents in G01J- Granted patents
- 1,398
- Published applications
- 1,449
- Assignees
- 608
- Inventors
- 2,247
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 23 | 0 |
| 1999 | 17 | 0 |
| 2000 | 22 | 0 |
| 2001 | 15 | 6 |
| 2002 | 22 | 41 |
| 2003 | 31 | 35 |
| 2004 | 36 | 39 |
| 2005 | 22 | 43 |
| 2006 | 31 | 46 |
| 2007 | 26 | 52 |
| 2008 | 50 | 36 |
| 2009 | 34 | 18 |
| 2010 | 37 | 45 |
| 2011 | 26 | 42 |
| 2012 | 27 | 55 |
| 2013 | 35 | 51 |
| 2014 | 40 | 86 |
| 2015 | 40 | 72 |
| 2016 | 68 | 69 |
| 2017 | 65 | 75 |
| 2018 | 91 | 91 |
| 2019 | 81 | 79 |
| 2020 | 74 | 106 |
| 2021 | 80 | 98 |
| 2022 | 68 | 85 |
| 2023 | 57 | 69 |
| 2024 | 73 | 49 |
| 2025 | 54 | 33 |
| 2026 | 31 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical module, electronic device, and driving method29 Sep 2026US 12,748,300 B2Seiko Epson Corporation
- Very high resolution spectrometer for monitoring of semiconductor processes22 Sep 2026US 12,742,678 B2Verity Instruments, Inc.
- Light detection device1 Sep 2026US 12,723,919 B2Hamamatsu Photonics K.K.
- System and method for quantum absorption spectroscopy1 Sep 2026US 12,723,920 B2Kyoto University
- Fabry-perot based speed sensor18 Aug 2026US 12,710,440 B2Rosemount Aerospace Inc.
- Light detecting device24 Sep 2026US 2026/0287425 A1Hamamatsu Photonics K.K.
- Information processing apparatus, information processing method, program, image processing apparatus, and image processing method17 Sep 2026US 2026/0276444 A1Sony Semiconductor Solutions Corporation
- Sensors for measuring pressure and temperature17 Sep 2026US 2026/0276445 A1Simmonds Precision Products, Inc.
- Integrated Frequency Modulated Optical Parametric Oscillator Frequency Combs and Optical Spectroscopy using same17 Sep 2026US 2026/0277072 A1The Board of Trustees of the Leland Stanford Junior University
- Dual-comb spectroscopy system with tunable frequency difference at high repetition rates13 Aug 2026US 2026/0235439 A1South China University of Technology
Most cited
By later US patents
- Optical filter for spectroscopic measurement and method of producing the optical filter1,209US 5,760,910 AMasimo Corporation · 1998
- Optical filter for spectroscopic measurement and method of producing the optical filter1,055US 5,940,182 AMasimo Corporation · 1999
- Interferometric modulation of radiation1,041US 6,674,562 B1Iridigm Display Corporation · 2004
- Optical filter for spectroscopic measurement and method of producing the optical filter1,032US 6,278,522 B1Masimo Laboratories, Inc. · 2001
- Photonic mems and structures872US 6,650,455 B2Iridigm Display Corporation · 2003