H02K 37/22
Damping units
H02K37/22 (Damping units) appears on 33 US grants and 12 published applications in this corpus.
Search patents in H02K- Granted patents
- 33
- Published applications
- 12
- Assignees
- 29
- Inventors
- 64
- Latest grant
- 20 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reduced noise and vibration switched reluctance machine20 Dec 2022US 11,532,976 B2
- Acoustic noise mitigation system for an electric machine25 Jan 2022US 11,233,445 B2The University of Akron
- Stepping motor9 Nov 2021US 11,171,554 B2Aisan Kogyo Kabushiki Kaisha
- Low-noise, high rotor pole switched reluctance motor7 Jul 2020US 10,707,798 B2Software Motor Company
- Method of reducing sound from light fixture with stepper motors2 Jul 2019US 10,340,782 B2Harman Professional Denmark ApS
- Step motor7 May 2026US 2026/0128657 A1AAC Microtech (Changzhou) Co., Ltd.
- Reduced Noise and Vibration Switched Reluctance Machine19 Nov 2020US 2020/0366178 A1Software Motor Company
- Low-noise, high rotor pole switched reluctance motor7 May 2020US 2020/0144950 A1Software Motor Company
- Acoustic noise mitigation system for an electric machine16 Apr 2020US 2020/0119631 A1The University of Akron
- Stepping Motor12 Dec 2019US 2019/0379264 A1Aisan Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Inertia damper41US 4,825,983 A1989
- Electric motor construction31US 4,329,606 AGeneral Scanning, Inc. · 1982
- Inertia damper using ferrofluid27US 4,123,675 AFerrofluidics Corporation · 1978
- Damping device for a stepper motor26US 4,049,985 AVDO Adolf Schindling AG · 1977
- Performance step motor24US 4,584,495 AApplied Motion Products, Inc. · 1986