G01B 9/02065
Using a second interferometer before or after measuring interferometer
Official title: {using a second interferometer before or after measuring interferometer}
G01B9/02065 (Using a second interferometer before or after measuring interferometer) appears on 81 US grants and 69 published applications in this corpus.
Search patents in G01B- Granted patents
- 81
- Published applications
- 69
- Assignees
- 54
- Inventors
- 164
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 3 |
| 2004 | 2 | 5 |
| 2005 | 3 | 2 |
| 2006 | 2 | 5 |
| 2007 | 5 | 7 |
| 2008 | 4 | 2 |
| 2009 | 4 | 3 |
| 2010 | 5 | 5 |
| 2011 | 2 | 5 |
| 2012 | 1 | 3 |
| 2013 | 7 | 2 |
| 2014 | 2 | 4 |
| 2015 | 4 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 2 |
| 2018 | 4 | 3 |
| 2019 | 1 | 4 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 3 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Broadband profiler system and method for constructing a three-dimensional profile of a target8 Jul 2025US 12,352,569 B2AP Infosense Limited
- Interferometer system and lithographic apparatus20 May 2025US 12,305,979 B2ASML Netherlands B. V.
- Low-coherence interferometer with surface power compensation20 May 2025US 12,305,981 B2Corning Incorporated
- Methods and systems of holographic interferometry8 Aug 2023US 11,719,531 B2RD Synergy Ltd.
- Phase noise compensation system, and method25 Apr 2023US 11,635,499 B2Qinetiq Limited
- Method and device for measuring interfaces of an optical element5 Dec 2024US 2024/0402039 A1Fogale Nanotech
- Three-Wavelengths Interferometric Measuring Device And Method14 Nov 2024US 2024/0377183 A1Taylor Hobson Limited
- Broadband profiler system and method for constructing a three-dimensional profile of a target29 Aug 2024US 2024/0288261 A1AP Infosense Limited
- Interferometer system and lithographic apparatus19 Oct 2023US 2023/0332880 A1ASML Netherlands B. V.
- Low-coherence interferometer with surface power compensation25 May 2023US 2023/0160686 A1Corning Incorporated
Most cited
By later US patents
- Short coherence fiber probe interferometric measuring device148US 6,741,355 B2Robert Bosch GmbH · 2004
- Common path frequency domain optical coherence reflectometry/tomography device93US 7,428,053 B2Imalux Corporation · 2008
- Common path frequency domain optical coherence reflectometer and common path frequency domain optical coherence tomography device86US 7,426,036 B2Imalux Corporation · 2008
- Interferometer having a short coherence length light source and means for identifying interference fringes69US 5,301,010 ACambridge Consultants Limited · 1994
- Interferometer arrangement with adjustable optical path length difference for detecting a distance between different layers of an eye67US 5,719,673 ACarl Zeiss Jena GmbH · 1998