G01P 5/241
By using reflection of acoustical waves, i.e. doppler-effect
Official title: {by using reflection of acoustical waves, i.e. Doppler-effect}
G01P5/241 (By using reflection of acoustical waves, i.e. doppler-effect) appears on 199 US grants and 95 published applications in this corpus.
Search patents in G01P- Granted patents
- 199
- Published applications
- 95
- Assignees
- 129
- Inventors
- 399
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 3 |
| 2004 | 5 | 2 |
| 2005 | 3 | 4 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 3 |
| 2009 | 2 | 0 |
| 2010 | 2 | 3 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 8 |
| 2016 | 2 | 3 |
| 2017 | 5 | 5 |
| 2018 | 7 | 7 |
| 2019 | 5 | 5 |
| 2020 | 6 | 9 |
| 2021 | 5 | 8 |
| 2022 | 6 | 7 |
| 2023 | 6 | 10 |
| 2024 | 6 | 4 |
| 2025 | 7 | 1 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Acoustic wind measurement14 Jul 2026US 12,681,037 B2Vaisala Oyj
- Acoustic wind measurement16 Jun 2026US 12,656,367 B2Vaisala Oyj
- Fluid device and method for controlling fluid device31 Mar 2026US 12,590,983 B2Seiko Epson Corporation
- Measurement of system for streamflow determination in real time20 Jan 2026US 12,529,586 B2University of Iowa Research Foundation
- Underwater acoustic receiver apparatus and method of monitoring a target portion of a water column16 Dec 2025US 12,498,391 B2Sonardyne International Limited
- Fluid flow measuring apparatus23 Jan 2025US 2025/0027800 A1University of Warwick
- Acoustic wind measurement27 Jun 2024US 2024/0210438 A1Vaisala Oyj
- Acoustic wind measurement27 Jun 2024US 2024/0210439 A1Vaisala Oyj
- Apparatus and method of measuring air currents on surface of substrate9 May 2024US 2024/0153831 A1Semes Co., Ltd.
- Fluid Device And Method For Controlling Fluid Device4 Jan 2024US 2024/0003932 A1Seiko Epson Corporation
Most cited
By later US patents
- Methods and apparatus for monitoring cardiac output423US 4,796,634 ALawrence Medical Systems, Inc. · 1989
- Vector doppler medical devices for blood velocity studies187US 5,409,010 AThe Board of Regents of the University of Washington · 1995
- Method and apparatus for processing signal data to form an envelope on line141US 5,271,404 ACardiometrics, Inc. · 1993
- Measurement of true blood velocity by an ultrasound system123US 4,265,126 AGeneral Electric Company · 1981
- Apparatus for diagnosing vascular systems in organism108US 5,357,550 AKabushiki Kaisha Toshiba · 1994