G01F 1/6882
Making use of temperature dependence of acoustic properties
Official title: {making use of temperature dependence of acoustic properties, e.g. propagation speed of surface acoustic waves}
G01F1/6882 (Making use of temperature dependence of acoustic properties) appears on 20 US grants and 20 published applications in this corpus.
Search patents in G01F- Granted patents
- 20
- Published applications
- 20
- Assignees
- 22
- Inventors
- 52
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
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| 1997 | 0 | 0 |
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| 1999 | 1 | 0 |
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| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and methodology for evaluation of distributed acoustic and temperature signals during well flows with heterogeneous inflow and outflow patterns14 Jul 2026US 12,680,850 B2Schlumberger Technology Corporation
- Acoustic fluids monitoring23 May 2023US 11,656,112 B2International Business Machines Corporation
- Heat flux sensor with heating wire11 Jan 2022US 11,221,316 B2Apix Analytics
- Non-linear ultrasound method and apparatus for quantitative detection of materials (liquids, gas, plasma)12 Oct 2021US 11,143,533 B2Perceptive Sensor Technologies, Inc.
- Non-linear ultrasound method and apparatus for quantitative detection of materials (liquids, gas, plasma)4 May 2021US 10,996,089 B2Perceptive Sensor Technologies, Inc.
- System and methodology for evaluation of distributed acoustic and temperature signals during well flows with heterogeneous inflow and outflow patterns23 Oct 2025US 2025/0327696 A1Schlumberger Technology Corporation
- Flow Sensor and Method Using Temperature to Improve Measurements for Low Rates9 May 2024US 2024/0151568 A1Remoni A/S
- Ultrasonic Flow Sensor and Thermal Energy Sensor with Non-Invasive Identification of No-Flow and Improved Accuracy2 May 2024US 2024/0142283 A1
- Acoustic fluids monitoring19 May 2022US 2022/0155120 A1International Business Machines Corporation
- Non-linear ultrasound method and apparatus for quantitative detection of materials (liquids, gas, plasma)6 May 2021US 2021/0131846 A1Perceptive Sensor Technologies, Inc.
Most cited
By later US patents
- Flow sensing using surface acoustic waves34US 4,932,255 AJohnson Service Company · 1990
- Acoustic wave microsensors for measuring fluid flow34US 5,003,822 A1991
- Surface acoustic wave gas flow rate sensor with self-heating feature16US 4,726,225 AJohnson Service Company · 1988
- Passive and wireless in-vivo acoustic wave flow sensor11US 7,399,280 B2Honeywell International Inc. · 2008
- Method and measuring apparatus for determining specific quantities for gas quality4US 10,101,186 B2Mems AG · 2018