G01B 2290/00
Aspects of interferometers not specifically covered by any group under g01b9/02
Official title: Aspects of interferometers not specifically covered by any group under G01B9/02
G01B2290/00 (Aspects of interferometers not specifically covered by any group under g01b9/02) appears on 1,880 US grants and 1,689 published applications in this corpus.
Search patents in G01B- Granted patents
- 1,880
- Published applications
- 1,689
- Assignees
- 736
- Inventors
- 2,953
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 14 | 0 |
| 1989 | 19 | 0 |
| 1990 | 12 | 0 |
| 1991 | 12 | 0 |
| 1992 | 21 | 0 |
| 1993 | 20 | 0 |
| 1994 | 25 | 0 |
| 1995 | 22 | 0 |
| 1996 | 26 | 0 |
| 1997 | 19 | 0 |
| 1998 | 28 | 0 |
| 1999 | 22 | 0 |
| 2000 | 37 | 0 |
| 2001 | 35 | 8 |
| 2002 | 21 | 31 |
| 2003 | 48 | 89 |
| 2004 | 45 | 55 |
| 2005 | 58 | 88 |
| 2006 | 75 | 95 |
| 2007 | 70 | 85 |
| 2008 | 87 | 97 |
| 2009 | 89 | 79 |
| 2010 | 61 | 95 |
| 2011 | 87 | 84 |
| 2012 | 52 | 81 |
| 2013 | 81 | 77 |
| 2014 | 61 | 63 |
| 2015 | 61 | 58 |
| 2016 | 63 | 54 |
| 2017 | 76 | 71 |
| 2018 | 75 | 56 |
| 2019 | 60 | 54 |
| 2020 | 51 | 57 |
| 2021 | 61 | 71 |
| 2022 | 62 | 65 |
| 2023 | 37 | 68 |
| 2024 | 54 | 52 |
| 2025 | 54 | 39 |
| 2026 | 29 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01B 2290/70Aspects of interferometers not specifically covered by any group under g01b9/02: usingIndexing code1,011
- G01B 2290/45Multiple detectors for detecting interferometer signalsIndexing code463
- G01B 2290/65Spatial scanning object beamIndexing code173
- G01B 2290/25Fabry-perot in interferometerIndexing code170
- G01B 2290/60Reference interferometer, i.e. additional interferometer not interacting with objectIndexing code168
- G01B 2290/35Mechanical variable delay lineIndexing code155
- G01B 2290/30Grating as beam-splitterIndexing code136
- G01B 2290/15Cat eye, i.e. reflection always parallel to incoming beamIndexing code104
All 13 subgroupsShow fewer
Recent patents
- Image-plane self-calibration in interferometry using closed triad imaging6 Oct 2026US 12,754,009 B2Associated Universties, Inc.
- Demodulation system for optical fiber Fabry-Perot sensor6 Oct 2026US 12,754,045 B2Beijing Bywave Sensing Technology Co., Ltd.
- Optical coherence tomograph22 Sep 2026US 12,742,629 B2Furukawa Electric Co., Ltd.
- Interferometric displacement measurement apparatus15 Sep 2026US 12,736,324 B2Oxford University Innovation Limited
- Laser interferometer and method for controlling laser interferometer15 Sep 2026US 12,736,828 B2Seiko Epson Corporation
- Method for determining a position by differential optical interferometry and differential interferometer for doing the same6 Aug 2026US 2026/0227172 A1Prodrive Technologies Innovation Services B.V.
- Method for determining a position of a target by optical interferometry and device for doing the same30 Jul 2026US 2026/0219027 A1Prodrive Technologies Innovation Services B.V.
- Polarization interferometer30 Jul 2026US 2026/0219037 A1Onto Innovation Inc.
- Systems and methods for concurrent measurements of interferometric and ellipsometric signals of multi-layer thin films30 Jul 2026US 2026/0219168 A1Nanoverse Technologies Ltd
- Extrinsic fabry-perot interferometer metallic surface sensor16 Jul 2026US 2026/0202185 A1The Curators of the University of Missouri
Most cited
By later US patents
- Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample1,199US 5,321,501 AMassachusetts Institute of Technology · 1994
- Methods and apparatus for forward-directed optical scanning instruments1,184US 6,485,413 B1The General Hospital Corporation · 2002
- Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope1,079US 6,134,003 AMassachusetts Institute of Technology · 2000
- Method and apparatus for performing optical measurements1,018US 5,459,570 AMassachusetts Institute of Technology · 1995
- Fiber optic needle probes for optical coherence tomography imaging722US 6,564,087 B1Massachusetts Institute of Technology · 2003