G01R 31/34
Testing dynamo-electric machines
G01R31/34 (Testing dynamo-electric machines) appears on 1,942 US grants and 1,894 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,942
- Published applications
- 1,894
- Assignees
- 897
- Inventors
- 4,325
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 15 | 0 |
| 1979 | 19 | 0 |
| 1980 | 14 | 0 |
| 1981 | 7 | 0 |
| 1982 | 19 | 0 |
| 1983 | 14 | 0 |
| 1984 | 16 | 0 |
| 1985 | 14 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 18 | 0 |
| 1989 | 23 | 0 |
| 1990 | 16 | 0 |
| 1991 | 14 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 37 | 0 |
| 1997 | 38 | 0 |
| 1998 | 23 | 0 |
| 1999 | 16 | 0 |
| 2000 | 30 | 0 |
| 2001 | 17 | 6 |
| 2002 | 24 | 18 |
| 2003 | 27 | 26 |
| 2004 | 29 | 33 |
| 2005 | 28 | 36 |
| 2006 | 26 | 36 |
| 2007 | 32 | 30 |
| 2008 | 20 | 33 |
| 2009 | 21 | 60 |
| 2010 | 41 | 50 |
| 2011 | 32 | 55 |
| 2012 | 46 | 71 |
| 2013 | 56 | 74 |
| 2014 | 51 | 79 |
| 2015 | 70 | 91 |
| 2016 | 78 | 105 |
| 2017 | 74 | 86 |
| 2018 | 92 | 106 |
| 2019 | 117 | 110 |
| 2020 | 104 | 120 |
| 2021 | 92 | 105 |
| 2022 | 97 | 121 |
| 2023 | 101 | 117 |
| 2024 | 101 | 121 |
| 2025 | 95 | 96 |
| 2026 | 52 | 109 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for determining an individual motor parameter, electronic device, and storage medium29 Sep 2026US 12,748,148 B2AAC Acoustic Technologies (Shanghai) Co., Ltd.
- Electronic device15 Sep 2026US 12,736,596 B2Alps Alpine Co., Ltd.
- System and method for analysis of the insulation condition of an electrical machine by the phases, and, storage media8 Sep 2026US 12,730,140 B2PS Soluções Indústria, Comércio, Representações e Consultoria Ltda
- Method and system for performing condition monitoring of wind turbine components1 Sep 2026US 12,723,570 B2Fischer Block, Inc.
- Electromotive force (EMF) monitoring for an electrical submersible pump (ESP) with permanent magnet motor (PMM)1 Sep 2026US 12,724,074 B2Halliburton Energy Services.Inc.
- Enhanced motor identification and control based on current characteristic response8 Oct 2026US 2026/0309781 A1Tesla, Inc.
- State diagnosis device, state diagnosis method, and abnormality sign inference device of electric motor8 Oct 2026US 2026/0309782 A1Mitsubishi Electric Corporation
- Starting an obstacle detection technique1 Oct 2026US 2026/0297987 A1GM Global Technology Operations LLC
- System and method for motor fault detection using hybrid physics-based and data-driven method24 Sep 2026US 2026/0287658 A1Mitsubishi Electric Research Laboratories, Inc.
- System and method of detecting fault in the current sensing function of an electric motor controller24 Sep 2026US 2026/0291417 A1NXP B. V.
Most cited
By later US patents
- Method and apparatus for predicting electric induction machine failure during operation302US 5,629,870 ASiemens Energy & Automation, Inc. · 1997
- Robotic surgical system torque transduction sensing284US 10,507,068 B2Covidien LP · 2019
- Motorized system integrated control and diagnostics using vibration, pressure, temperature, speed, and/or current analysis245US 7,539,549 B1Rockwell Automation Technologies, Inc. · 2009
- Apparatus and method for the remote monitoring of machine condition237US 5,845,230 ASKF Condition Monitoring, Inc. · 1998
- Motor speed indicator215US 3,932,812 APeripheral Equipment Corporation · 1976