B22D 19/0054
Rotors, stators for electrical motors
Official title: {rotors, stators for electrical motors}
B22D19/0054 (Rotors, stators for electrical motors) appears on 89 US grants and 75 published applications in this corpus.
Search patents in B22D- Granted patents
- 89
- Published applications
- 75
- Assignees
- 55
- Inventors
- 212
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 5 |
| 2005 | 5 | 4 |
| 2006 | 3 | 3 |
| 2007 | 0 | 4 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 6 |
| 2012 | 5 | 6 |
| 2013 | 1 | 0 |
| 2014 | 1 | 5 |
| 2015 | 3 | 5 |
| 2016 | 4 | 1 |
| 2017 | 1 | 5 |
| 2018 | 5 | 4 |
| 2019 | 7 | 7 |
| 2020 | 5 | 3 |
| 2021 | 5 | 3 |
| 2022 | 3 | 1 |
| 2023 | 0 | 3 |
| 2024 | 0 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotor having a squirrel cage7 Apr 2026US 12,597,835 B2Innomotics GmbH
- Low-pressure aluminum casting mold and low-pressure aluminum casting process for motor rotor18 Feb 2025US 12,226,818 B2Shanxi Electric Motor Manufacturing Co., Ltd.
- Closed-type liquid cooling motor frame and method for manufacturing the same4 Oct 2022US 11,462,977 B2Teco Electric & Machinery Co., Ltd.
- Heat-sink base provided with heat-sink fin portions, method for producing same and motor provided with same27 Sep 2022US 11,454,459 B2Atieva, Inc.
- Rotor for an electric machine12 Apr 2022US 11,303,174 B2Vitesco Technologies GmbH
- Method of assembling a laminated steel stack for casting a rotor assembly30 Oct 2025US 2025/0337303 A1GM Global Technology Operations LLC
- Aluminum alloy for casting motor rotor in new energy vehicle and preparation method therefor9 Jan 2025US 2025/0011903 A1Shandong Boyuan Precision Machinery Co., Ltd.
- Method and cast part production system for producing an electric motor housing, and electric motor19 Sep 2024US 2024/0307952 A1Ae Group AG
- Low-pressure aluminum casting mold and low-pressure aluminum casting process for motor rotor1 Aug 2024US 2024/0253110 A1Shanxi Electric Motor Manufacturing Co., Ltd.
- Method of manufacturing stator for rotary electric machine10 Aug 2023US 2023/0253863 A1Aisin Corporation
Most cited
By later US patents
- Method for manufacturing a rotor for a rotary fluid pump75US 4,570,316 ANippon Piston Ring Co., Ltd. · 1986
- Line start permanent magnet motor56US 5,952,757 AGeneral Electric Company · 1999
- Method of manufacturing squirrel cage rotors48US 6,088,906 AUT-Battelle, LLC · 2000
- Electric vehicle motor47US 5,682,074 ANorthrop Grumman Corporation · 1997
- Method and device of producing a squirrel-cage rotor for an induction motor31US 5,538,067 AFanuc Corporation · 1996