G01B 9/02027
Two or more interferometric channels or interferometers
Official title: {Two or more interferometric channels or interferometers}
G01B9/02027 (Two or more interferometric channels or interferometers) appears on 724 US grants and 719 published applications in this corpus.
Search patents in G01B- Granted patents
- 724
- Published applications
- 719
- Assignees
- 405
- Inventors
- 1,393
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 15 | 2 |
| 2002 | 11 | 9 |
| 2003 | 12 | 24 |
| 2004 | 10 | 21 |
| 2005 | 14 | 24 |
| 2006 | 20 | 31 |
| 2007 | 22 | 26 |
| 2008 | 24 | 36 |
| 2009 | 35 | 17 |
| 2010 | 24 | 41 |
| 2011 | 28 | 41 |
| 2012 | 20 | 42 |
| 2013 | 35 | 45 |
| 2014 | 31 | 30 |
| 2015 | 39 | 36 |
| 2016 | 30 | 32 |
| 2017 | 36 | 25 |
| 2018 | 28 | 25 |
| 2019 | 27 | 27 |
| 2020 | 27 | 34 |
| 2021 | 28 | 27 |
| 2022 | 30 | 34 |
| 2023 | 21 | 31 |
| 2024 | 18 | 18 |
| 2025 | 28 | 17 |
| 2026 | 13 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Interferometric displacement measurement apparatus15 Sep 2026US 12,736,324 B2Oxford University Innovation Limited
- Interferometric wavemeter for broadband sensors in photonic systems21 Jul 2026US 12,687,383 B2Intel Corporation
- Method and apparatus for mapping and ranging based on coherent-time comparison14 Jul 2026US 12,680,808 B2Lidwave Ltd.
- Position detection system using laser light interferometry2 Jun 2026US 12,644,691 B2Vdl Enabling Technologies Group B.V.
- Optical interferometric range sensor26 May 2026US 12,638,586 B2OMRON Corporation
- Device for carrying out an optical coherence tomography10 Sep 2026US 2026/0266588 A1Heidelberg Engineering GmbH
- Device for measuring the eye length3 Sep 2026US 2026/0256354 A1Heidelberg Engineering GmbH
- Device for performing optical coherence tomography27 Aug 2026US 2026/0248381 A1Heidelberg Engineering GmbH
- Low-snr optical detection technique using destructive interference20 Aug 2026US 2026/0243685 A1Liom Health AG
- Laser stabilization apparatus and method using homodyne interferometer-type optical reference module13 Aug 2026US 2026/0235393 A1Korea Advanced Institute of Science and Technology
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
- Method and apparatus for performing optical measurements1,018US 5,459,570 AMassachusetts Institute of Technology · 1995
- Methods and apparatus for high speed longitudinal scanning in imaging systems551US 6,191,862 B1LightLab Imaging, Inc. · 2001
- Method and apparatus for acquiring images using a ccd detector array and no transverse scanner522US 5,465,147 AMassachusetts Institute of Technology · 1995
- Differential interferometer system and lithographic step-and-scan apparatus provided with such a system426US 6,046,792 AU. S. Philips Corporation · 2000