G01J 7/00
Measuring velocity of light
G01J7/00 (Measuring velocity of light) appears on 14 US grants and 14 published applications in this corpus.
Search patents in G01J- Granted patents
- 14
- Published applications
- 14
- Assignees
- 13
- Inventors
- 25
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Measuring the speed of electromagnetic wave propagation in a fluid within a conduit25 Nov 2025US 12,480,819 B2Saudi Arabian Oil Company
- Method and system utilizing absolute velocity to improve the performance of electromagnetic devices13 Aug 2024US 12,061,122 B2
- Recalibration of a tunable lamp system8 Sep 2020US 10,772,174 B2Lumenetix, Inc.
- Method and system for controlling the speed of a laser pulse25 Feb 2020US 10,574,019 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Methods of selecting optical fibers that meet bandwidth requirements at different wavelengths1 Jan 2019US 10,168,246 B2Corning Incorporated
- Method and apprartus for detecting orbital angular momentum of light18 Jun 2026US 2026/0168862 A1Institute for Basic Science
- Measuring the speed of electromagnetic wave propagation in a fluid within a conduit30 May 2024US 2024/0175759 A1Saudi Arabian Oil Company
- Method and System utilizing absolute velocity to improve the performance of electromagnetic devices18 Aug 2022US 2022/0260427 A1
- Recalibration of a tunable lamp system26 Sep 2019US 2019/0297703 A1Lumenetix, Inc.
- Method and system for controlling the speed of a laser pulse13 Dec 2018US 2018/0358771 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
Most cited
By later US patents
- Recalibration of a tunable lamp system26US 10,772,174 B2Lumenetix, Inc. · 2020
- Wavelength dispersion measuring apparatus and polarization dispersion measuring apparatus19US 5,995,228 AAnritsu Corporation · 1999
- Light dispersion measuring apparatus6US 4,411,520 AKokusai Denshin Denwa Kabushiki Kaisha · 1983
- Recalibration of a tunable lamp system4US 9,648,696 B2Lumenetix, Inc. · 2017
- Delay time measurement apparatus for optical element3US 6,788,410 B1Anritsu Corporation · 2004