G01B 9/02045
Using the doppler effect
Official title: {using the Doppler effect}
G01B9/02045 (Using the doppler effect) appears on 129 US grants and 124 published applications in this corpus.
Search patents in G01B- Granted patents
- 129
- Published applications
- 124
- Assignees
- 87
- Inventors
- 261
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 11 |
| 2004 | 2 | 2 |
| 2005 | 4 | 3 |
| 2006 | 5 | 6 |
| 2007 | 6 | 5 |
| 2008 | 6 | 9 |
| 2009 | 5 | 2 |
| 2010 | 6 | 4 |
| 2011 | 3 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 4 |
| 2014 | 1 | 7 |
| 2015 | 8 | 5 |
| 2016 | 3 | 5 |
| 2017 | 5 | 4 |
| 2018 | 4 | 5 |
| 2019 | 4 | 2 |
| 2020 | 4 | 5 |
| 2021 | 4 | 5 |
| 2022 | 5 | 9 |
| 2023 | 8 | 12 |
| 2024 | 5 | 5 |
| 2025 | 7 | 3 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual-interrogated interferometer for fluid measurements14 Jul 2026US 12,681,034 B2Honeywell International Inc.
- Laser interferometer21 Apr 2026US 12,607,869 B2Seiko Epson Corporation
- Laser interferometer17 Mar 2026US 12,578,179 B2Seiko Epson Corporation
- Laser interferometer3 Feb 2026US 12,540,812 B2Seiko Epson Corporation
- Laser interferometer6 Jan 2026US 12,516,921 B2Seiko Epson Corporation
- Optical sensor modules with interferometric sensing1 Oct 2026US 2026/0298615 A1Apple Inc.
- Laser interferometer2 Jul 2026US 2026/0185816 A1Seiko Epson Corporation
- Wearable user device, computer program, method, and apparatus for non-invasive measurement of fluids in living tissue25 Jun 2026US 2026/0174333 A1Sony Group Corporation
- Dual self-mixing interferometry device and method29 Jan 2026US 2026/0029531 A1ams-OSRAM Asia Pacific Pte. Ltd.
- Metrology device with wavelength-frequency multiplexing3 Jul 2025US 2025/0216189 A1Onto Innovation Inc.
Most cited
By later US patents
- Method and apparatus for performing optical frequency domain reflectometry488US 6,160,826 AMassachusetts Institute of Technology · 2000
- Method and apparatus for performing optical measurements using a rapidly frequency-tuned laser478US 5,956,355 AMassachusetts Institute of Technology · 1999
- Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands340US 7,355,716 B2The General Hospital Corporation · 2008
- Phase-resolved optical coherence tomography and optical doppler tomography for imaging fluid flow in tissue with fast scanning speed and high velocity sensitivity259US 6,549,801 B1The Regents of the University of California · 2003
- Doppler flow imaging using optical coherence tomography206US 6,006,128 A1999