H02K 37/18
Of homopolar type
Official title: of homopolar type
H02K37/18 (Of homopolar type) appears on 122 US grants and 51 published applications in this corpus.
Search patents in H02K- Granted patents
- 122
- Published applications
- 51
- Assignees
- 61
- Inventors
- 184
- Latest grant
- 4 Jan 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 3 | 5 |
| 2003 | 8 | 5 |
| 2004 | 4 | 1 |
| 2005 | 4 | 7 |
| 2006 | 3 | 1 |
| 2007 | 1 | 5 |
| 2008 | 4 | 4 |
| 2009 | 4 | 2 |
| 2010 | 5 | 4 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 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
- System hinge assembly4 Jan 2022US 11,216,043 B1Lenovo (Singapore) Pte. Ltd.
- Hybrid type stepping motor14 Dec 2021US 11,201,521 B2MINEBEA MITSUMI Inc.
- Skipping and rolo-skip electrical motors5 Nov 2019US 10,468,958 B2Herzal Laor
- Hybrid electrical machine1 Oct 2019US 10,432,076 B2Mmt SA
- Stepper motor1 Jan 2019US 10,170,970 B2Sanyo Denki Co., Ltd.
- Stepping motor and timepiece12 Mar 2026US 2026/0074597 A1Casio Computer Co., Ltd.
- Skipping and rolo-skip electrical motors12 Sep 2019US 2019/0280581 A1Herzal Laor
- Hybrid Type Stepping Motor29 Nov 2018US 2018/0342926 A1MINEBEA MITSUMI Inc.
- Motor7 Jun 2018US 2018/0159384 A1Nidec Servo Corporation
- Hybrid electrical machine18 May 2017US 2017/0141670 A1Mmt SA
Most cited
By later US patents
- Pole grouping for stepping motor77US 4,910,475 ALinex Technology Corporation · 1990
- Means to reduce harmonic torque in electromagnetic machines66US 4,739,201 AThe Superior Electric Company · 1988
- Flat hybrid stepper or synchronous motor66US 4,764,697 AU. S. Philips Corporation · 1988
- Stepping motor having a molded housing64US 5,073,735 AAisan Kogyo Kabushiki Kaisha · 1991
- Four-phase hybrid type stepping motor62US 4,385,247 AOriental Motor Co., Ltd. · 1983