H02K 9/16
Wherein the cooling medium circulates through ducts or tubes within the casing
Official title: wherein the cooling medium circulates through ducts or tubes within the casing
H02K9/16 (Wherein the cooling medium circulates through ducts or tubes within the casing) appears on 107 US grants and 116 published applications in this corpus.
Search patents in H02K- Granted patents
- 107
- Published applications
- 116
- Assignees
- 87
- Inventors
- 315
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 2 |
| 2014 | 2 | 9 |
| 2015 | 3 | 6 |
| 2016 | 5 | 3 |
| 2017 | 2 | 7 |
| 2018 | 4 | 10 |
| 2019 | 14 | 19 |
| 2020 | 14 | 14 |
| 2021 | 12 | 8 |
| 2022 | 12 | 14 |
| 2023 | 4 | 4 |
| 2024 | 10 | 10 |
| 2025 | 9 | 2 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotor module with cooling structure4 Aug 2026US 12,700,773 B2Hyundai Mobis Co., Ltd.
- Airgap cooling system for an electric machine14 Jul 2026US 12,683,441 B2General Electric Company
- Electric motor designed to allow better removal of the heat generated while it is in operation16 Jun 2026US 12,658,765 B2Novares France
- Power electronics arrangement for an externally excited synchronous machine and motor vehicle5 May 2026US 12,620,870 B2Audi AG
- Axial flux motor with air cooling system31 Mar 2026US 12,592,606 B2Eaton Intelligent Power Limited
- Electric vehicle5 Mar 2026US 2026/0066828 A1Voltu Motor, Inc.
- An air cooled electric motor having an increased airflow and a method for increasing the airflow therein6 Mar 2025US 2025/0079930 A1Hamilton Sundstrand Corporation
- Attachment cooler of a dynamo-electric machine with plate coolers20 Feb 2025US 2025/0062660 A1Innomotics GmbH
- Electric motor designed to allow better removal of the heat generated while it is in operation21 Nov 2024US 2024/0388168 A1Novares France
- Cooling of an integrated variable-speed drive and motor31 Oct 2024US 2024/0364186 A1ePropelled Inc.
Most cited
By later US patents
- Air-cooled type electric motor37US 5,780,946 AFanuc Corporation · 1998
- Electric motor with an air-cooling system27US 5,747,900 AFanuc Corporation · 1998
- Thermal management of tail cone mounted generator25US 10,801,410 B2Raytheon Technologies Corporation · 2020
- Cooling device of an electrical machine22US 7,777,373 B2Siemens Aktiengesellschaft · 2010
- Electric machine with a high protection class with improved rotor cooling22US 8,519,580 B2Siemens Aktiengesellschaft · 2013