G02B 21/0056
Based on optical coherence
Official title: {based on optical coherence, e.g. phase-contrast arrangements, interference arrangements}
G02B21/0056 (Based on optical coherence) appears on 423 US grants and 439 published applications in this corpus.
Search patents in G02B- Granted patents
- 423
- Published applications
- 439
- Assignees
- 238
- Inventors
- 820
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 3 | 8 |
| 2002 | 19 | 14 |
| 2003 | 9 | 7 |
| 2004 | 9 | 14 |
| 2005 | 6 | 8 |
| 2006 | 13 | 8 |
| 2007 | 10 | 13 |
| 2008 | 8 | 7 |
| 2009 | 9 | 13 |
| 2010 | 6 | 7 |
| 2011 | 9 | 10 |
| 2012 | 8 | 8 |
| 2013 | 8 | 13 |
| 2014 | 9 | 19 |
| 2015 | 16 | 17 |
| 2016 | 19 | 36 |
| 2017 | 20 | 32 |
| 2018 | 26 | 24 |
| 2019 | 38 | 24 |
| 2020 | 29 | 32 |
| 2021 | 18 | 27 |
| 2022 | 21 | 19 |
| 2023 | 22 | 26 |
| 2024 | 15 | 18 |
| 2025 | 26 | 19 |
| 2026 | 6 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Prism-free differential interference contrast microscope with tunable beam shear distance8 Sep 2026US 12,730,010 B2Board of Regents, The University of Texas System
- Bond-selective full-field optical coherence tomography18 Aug 2026US 12,710,262 B2Trustees of Boston University
- Method for super-resolution microscopic interferometric measurement based on broadband annular radially polarized light28 Jul 2026US 12,693,112 B2Nanjing University of Science and Technology
- Methods and apparatus for calculating and maintaining an optimal sample position in an interferometric microscope16 Jun 2026US 12,656,594 B2Refeyn Ltd
- Optical element21 Apr 2026US 12,607,836 B2The University of Adelaide
- Device for locating an individual particle in a sample and associated method17 Sep 2026US 2026/0276521 A1Centre National De La Recherche Scientifique
- Self-Referencing Interferometric Microscope10 Sep 2026US 2026/0267121 A1Camtek Ltd.
- Reflection-based phase contrast microscope system10 Sep 2026US 2026/0267125 A1Applied Materials Israel Ltd.
- Observation device and observation method13 Aug 2026US 2026/0235509 A1Hamamatsu Photonics K.K.
- Observation device and observation method13 Aug 2026US 2026/0235510 A1Hamamatsu Photonics K.K.
Most cited
By later US patents
- Multiple layer, multiple track optical disk access by confocal interference microscopy using wavenumber domain reflectometry and background amplitude reduction and compensation252US 6,091,496 AZetetic Institute · 2000
- Confocal microscopy with multi-spectral encoding246US 6,341,036 B12002
- Confocal optical scanning system employing a fiber laser215US 5,887,009 AOptical Biopsy Technologies, Inc. · 1999
- Confocal microscopy with multi-spectral encoding and system and apparatus for spectroscopically encoded confocal microscopy183US 6,831,781 B2The General Hospital Corporation · 2004
- Imaging system using polarization effects to enhance image quality180US 6,134,010 ALucid, Inc. · 2000