H02P 23/16
Controlling the angular speed of one shaft
Official title: Controlling the angular speed of one shaft (H02P23/18 takes precedence)
H02P23/16 (Controlling the angular speed of one shaft) appears on 233 US grants and 64 published applications in this corpus.
Search patents in H02P- Granted patents
- 233
- Published applications
- 64
- Assignees
- 135
- Inventors
- 408
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 13 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 3 |
| 2002 | 1 | 2 |
| 2003 | 4 | 3 |
| 2004 | 2 | 1 |
| 2005 | 3 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 3 | 1 |
| 2017 | 1 | 8 |
| 2018 | 3 | 3 |
| 2019 | 7 | 5 |
| 2020 | 6 | 6 |
| 2021 | 6 | 1 |
| 2022 | 1 | 7 |
| 2023 | 2 | 3 |
| 2024 | 6 | 3 |
| 2025 | 5 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single live wired speed control circuit of ceiling fan motor31 Mar 2026US 12,592,659 B2Foshan Carro Electrical Co., Ltd.
- Device and method for open-loop or closed-loop control of a movement of a die cushion of a die cushion press20 May 2025US 12,303,959 B2Moog Inc.
- Systems and methods for speed regulation of induction motors8 Apr 2025US 12,273,057 B2King Fahd University of Petroleum and Minerals
- Power tool including conduction angle control1 Apr 2025US 12,267,035 B2Milwaukee Electric Tool Corporation
- Motor control device25 Mar 2025US 12,261,559 B2Denso Corporation
- System for processing a product during rotation19 Mar 2026US 2026/0081548 A1
- Controller circuit for motor15 Jan 2026US 2026/0019017 A1Rohm Co., Ltd.
- Systems and methods for controlling an electric blower motor in a fluid moving system25 Sep 2025US 2025/0297762 A1Regal Beloit America, Inc.
- Power tool including conduction angle control10 Jul 2025US 2025/0226776 A1Milwaukee Electric Tool Corporation
- Single live wired speed control circuit of ceiling fan motor26 Jun 2025US 2025/0211153 A1Foshan Carro Electrical Co., Ltd.
Most cited
By later US patents
- Electronic tractor control147US 4,715,012 AMassey-Ferguson Services N.V. · 1987
- Rotary electrical tool with speed control, especially drill67US 4,540,318 ARobert Bosch GmbH · 1985
- Disk drive employing multi-mode spindle drive system45US 5,471,353 AWestern Digital (Sea), Pte., Ltd. · 1995
- Motor drive system43US 5,012,169 AYokogawa Electric Corporation · 1991
- Mass velocity controller40US 5,036,266 ATektronix, Inc. · 1991