G01P 5/248
By measuring phase differences
Official title: {by measuring phase differences}
G01P5/248 (By measuring phase differences) appears on 31 US grants and 17 published applications in this corpus.
Search patents in G01P- Granted patents
- 31
- Published applications
- 17
- Assignees
- 35
- Inventors
- 78
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 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 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 3 | 0 |
| 2025 | 0 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for a high speed hybrid sonic and mechanical temperature and wind measurement sensor18 Aug 2026US 12,710,442 B2Michigan Aerospace Corporation
- System and method for high speed sonic temperature and airspeed measurements for inputs to an air data system17 Feb 2026US 12,554,042 B2Michigan Aerospace Corporation
- Grain cleaning system and method of controlling such5 Nov 2024US 12,133,484 B2AGCO International GmbH
- Systems and methods for operation of a sonic anemometer10 Sep 2024US 12,085,430 B2Cornell University
- Ultrasonic anemometers systems for sensing air flows in rooms and ducts28 May 2024US 11,994,532 B2The Regents of the University of California
- System and method for a high speed hybrid sonic and mechanical temperature and wind measurement sensor30 Apr 2026US 2026/0118375 A1Michigan Aerospace Corporation
- Measuring the flow rate of fluids25 Sep 2025US 2025/0297875 A1Sick AG
- System and method for high speed sonic temperature and airspeed measurements for inputs to an air data system17 Jul 2025US 2025/0231057 A1Michigan Aerospace Corporation
- Fluid Flow Sensors8 May 2025US 2025/0146853 A1FT Technologies (UK) Ltd
- Fluid flow measuring apparatus23 Jan 2025US 2025/0027800 A1University of Warwick
Most cited
By later US patents
- Ultrasonic anemometer75US 5,343,744 ATSI Incorporated · 1994
- Ultrasonic flow meter using transit time across tube chords for determining the flow rates72US 6,089,104 A2000
- Acoustic current meter19US 4,221,128 ANeil Brown Instruments Systems, Inc. · 1980
- Fluid flow measuring apparatus18US 4,320,666 A1982
- Ultrasound air velocity detector for HVAC ducts and method therefor15US 5,583,301 ANational Environmental Products, Ltd. · 1996