G01J 2009/0211
For measuring coherence
Official title: {for measuring coherence}
G01J2009/0211 (For measuring coherence) appears on 22 US grants and 18 published applications in this corpus.
Search patents in G01J- Granted patents
- 22
- Published applications
- 18
- Assignees
- 22
- Inventors
- 52
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 3 |
| 2022 | 2 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dispersion measurement device and method based on franson second-order quantum interference technology6 Jan 2026US 12,516,988 B2National Time Service Center, Chinese Academy of Sciences
- Quantitative phase image generating method, quantitative phase image generating device, and program7 Nov 2023US 11,808,929 B2Nikon Corporation
- Reducing speckle in an excimer light source27 Jun 2023US 11,686,951 B2ASML Netherlands B. V.
- Method for measuring complex degree of coherence of random optical field by using mutual intensity-intensity correlation21 Jun 2022US 11,366,017 B2Soochow University
- Wavefront sensor and method of using it5 Apr 2022US 11,293,806 B2Pxe Computational Imagimg Ltd
- Quantitative phase image generating method, quantitative phase image generating device, and program18 Sep 2025US 2025/0291167 A1Nikon Corporation
- Optical Polarization Diversity Receiver19 Jun 2025US 2025/0198850 A1Lightel Technologies, Inc.
- Dispersion measurement device and method based on franson second-order quantum interference technology30 Jan 2025US 2025/0035490 A1National Time Service Center, Chinese Academy of Sciences
- Quantitative phase image generating method, quantitative phase image generating device, and program4 Jan 2024US 2024/0004176 A1Nikon Corporation
- System and Method for Gradient Interferometrically Locked Laser Source2 Nov 2023US 2023/0352899 A1Nutronics, Inc.
Most cited
By later US patents
- Fabry-Perot scanning and nutating imaging coherent radiometer24US 4,743,114 AThe Perkin-Elmer Corporation · 1988
- Electro-optic coherent light detector16US 5,245,408 AThe United States of America as represented by the Director, National Security Agency · 1993
- Fiber optic coherence meter11US 4,747,688 AThe United States of America as represented by the Secretary of the Air Force · 1988
- Radiation interference devices10US 4,722,604 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1988
- Device which measures the mutual coherence function of a laser beam7US 4,265,539 ACompagnie Generale d'Electricite · 1981