G01L 3/24
Devices for determining the value of power
Official title: Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
G01L3/24 (Devices for determining the value of power) appears on 223 US grants and 177 published applications in this corpus.
Search patents in G01L- Granted patents
- 223
- Published applications
- 177
- Assignees
- 157
- Inventors
- 468
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 4 |
| 2005 | 3 | 4 |
| 2006 | 3 | 4 |
| 2007 | 3 | 6 |
| 2008 | 6 | 4 |
| 2009 | 2 | 9 |
| 2010 | 6 | 4 |
| 2011 | 4 | 5 |
| 2012 | 2 | 6 |
| 2013 | 7 | 5 |
| 2014 | 5 | 11 |
| 2015 | 6 | 15 |
| 2016 | 18 | 17 |
| 2017 | 6 | 17 |
| 2018 | 7 | 8 |
| 2019 | 11 | 14 |
| 2020 | 13 | 5 |
| 2021 | 6 | 13 |
| 2022 | 12 | 9 |
| 2023 | 8 | 5 |
| 2024 | 8 | 3 |
| 2025 | 1 | 5 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and measuring device for measuring reaction force and torque of resistance mechanism on flywheel11 Aug 2026US 12,704,425 B2Setec Oy
- Consumed power calculation method for electric motor and industrial machine24 Mar 2026US 12,584,948 B2The Japan Steel Works, Ltd.
- Heavy-duty, high-power and large-torque chassis dynamometer for multi-environmental system10 Feb 2026US 12,546,673 B2Jiangsu Xcmg Construction Machinery Research Institute Ltd.
- Method and device for determining an efficiency and/or for calibrating a torque of a rotating drive train, in particular of a wind energy installation19 Aug 2025US 12,392,324 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Data generation device and data generation system22 Oct 2024US 12,123,796 B2Keio University
- Measuring efficiency in an electric power system for an aircraft propulsion system19 Feb 2026US 2026/0050037 A1Pratt & Whitney Canada Corp.
- Strain-gauge auto-zero without using rotational angle12 Feb 2026US 2026/0043695 A14Iiii Innovations Inc.
- A method of transient testing a prime mover13 Nov 2025US 2025/0347572 A1
- Method and sensor arrangement for determining an adverse condition of a powertrain18 Sep 2025US 2025/0289437 A1Scania CV AB
- Bracket Torque Device18 Sep 2025US 2025/0290575 A1Bray International, Inc.
Most cited
By later US patents
- Measuring apparatus for pedal-crank assembly270US 5,027,303 A1991
- Interactive dynamic real-time management system224US 4,843,575 A1989
- IC engine cylinder output power measurement apparatus by monitoring the output of an alternator driven by the engine196US 5,087,881 A1992
- Method and system for monitoring operating efficiency of pipeline system170US 4,584,654 AUltra Products Systems, Inc. · 1986
- Bicycle power meter132US 5,031,455 A1991