G01L 3/26
Devices for measuring efficiency, i.e. the ratio of power output to power
Official title: Devices for measuring efficiency, i.e. the ratio of power output to power input
G01L3/26 (Devices for measuring efficiency, i.e. the ratio of power output to power) appears on 59 US grants and 40 published applications in this corpus.
Search patents in G01L- Granted patents
- 59
- Published applications
- 40
- Assignees
- 37
- Inventors
- 127
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 3 |
| 2014 | 2 | 2 |
| 2015 | 3 | 4 |
| 2016 | 1 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 5 |
| 2019 | 1 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 1 |
| 2022 | 3 | 5 |
| 2023 | 3 | 0 |
| 2024 | 3 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for estimating a value of a friction force exerted on a part of a power steering system by means of a mathematical model13 Aug 2024US 12,060,119 B2Jtekt Europe
- Automated drilling methods and systems using real-time analysis of drill string dynamics13 Aug 2024US 12,060,754 B2
- Systems and methods for testing a bicycle training apparatus14 May 2024US 11,980,799 B2Purdue Research Foundation
- Method for determining an efficiency and/or for calibrating a torque of a drivetrain, in particular of a wind turbine28 Nov 2023US 11,828,266 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- System and method for evaluating atomization efficiency of wind-driven atomizer19 Sep 2023US 11,761,836 B2Beijing Research Center of Intelligent Equipment for Agriculture
- Predictive control system and method for vehicle systems1 May 2025US 2025/0137414 A1Cummins Inc.
- Automated drilling methods and systems using real-time analysis of drill string dynamics31 Oct 2024US 2024/0360732 A1
- Systems and methods for testing a bicycle training apparatus9 Jun 2022US 2022/0176221 A1Purdue Research Foundation
- Method for estimating a value of a friction force exerted on a part of a power steering system by means of a mathematical model9 Jun 2022US 2022/0177028 A1Jtekt Europe
- Automated drilling methods and systems using real-time analysis of drill string dynamics3 Feb 2022US 2022/0034214 A1Evolution Engineering Inc.
Most cited
By later US patents
- Fuel use efficiency system for a vehicle for assisting the driver to improve fuel economy300US 6,092,021 AFreightliner Corporation · 2000
- Interactive dynamic real-time management system224US 4,843,575 A1989
- Method and system for monitoring operating efficiency of pipeline system170US 4,584,654 AUltra Products Systems, Inc. · 1986
- Method primarily for performance control at heat pumps or refrigerating installations and arrangement for carrying out the method137US 4,611,470 A1986
- Specific coefficient of performance measuring device131US 4,510,576 AHoneywell Inc. · 1985