A63B 21/0059
Using a frequency controlled ac motor
Official title: {using a frequency controlled AC motor}
A63B21/0059 (Using a frequency controlled ac motor) appears on 134 US grants and 224 published applications in this corpus.
Search patents in A63B- Granted patents
- 134
- Published applications
- 224
- Assignees
- 97
- Inventors
- 365
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 5 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 4 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 4 |
| 2016 | 0 | 7 |
| 2017 | 4 | 3 |
| 2018 | 5 | 6 |
| 2019 | 5 | 9 |
| 2020 | 9 | 12 |
| 2021 | 5 | 14 |
| 2022 | 11 | 32 |
| 2023 | 11 | 28 |
| 2024 | 26 | 42 |
| 2025 | 24 | 35 |
| 2026 | 20 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Training apparatus1 Sep 2026US 12,722,045 B2TomFit AG
- Wearable device and exercise assistance method by the same25 Aug 2026US 12,714,914 B2Samsung Electronics Co., Ltd.
- Electronic device and wearable device for providing exercise program, and control method of the same16 Jun 2026US 12,654,067 B2Samsung Electronics Co., Ltd.
- Perturbation device for propioception and vestibular training26 May 2026US 12,636,546 B2Kinesia, Inc.
- Drop set mode for digital exercise device12 May 2026US 12,623,109 B2Tonal Systems, Inc.
- Exercise equipment27 Aug 2026US 2026/0249128 A1LG Electronics Inc.
- Motor powered lifting rack system13 Aug 2026US 2026/0233054 A1
- Control method for force output device, computer device, and storage medium6 Aug 2026US 2026/0224933 A1Beyond Power Inc.
- Handheld respiratory diagnostic, training, and therapy devices and methods16 Jul 2026US 2026/0198799 A1
- Multifunctional fitness facility2 Jul 2026US 2026/0183603 A1Shenzhen Speediance Life Tech Limited
Most cited
By later US patents
- Computer controlled exercise system434US 4,934,694 A1990
- Strength calibration137US 10,874,905 B2Tonal Systems, Inc. · 2020
- Climbing exerciser machine with adjustable inclination108US 9,717,947 B2Rexon Industrial Corp., Ltd. · 2017
- Networked exercise devices with shared virtual training71US 10,716,969 B2Aviron Interactive Inc. · 2020
- Exercise and diagnostic apparatus and method70US 5,348,519 ALoredan Biomedical, Inc. · 1994