H02K 9/193
With provision for replenishing the cooling medium
Official title: with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
H02K9/193 (With provision for replenishing the cooling medium) appears on 388 US grants and 541 published applications in this corpus.
Search patents in H02K- Granted patents
- 388
- Published applications
- 541
- Assignees
- 231
- Inventors
- 1,269
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 0 | 2 |
| 2011 | 2 | 6 |
| 2012 | 5 | 2 |
| 2013 | 3 | 14 |
| 2014 | 4 | 12 |
| 2015 | 10 | 11 |
| 2016 | 6 | 7 |
| 2017 | 8 | 12 |
| 2018 | 7 | 22 |
| 2019 | 14 | 35 |
| 2020 | 27 | 46 |
| 2021 | 20 | 42 |
| 2022 | 39 | 61 |
| 2023 | 46 | 70 |
| 2024 | 47 | 72 |
| 2025 | 60 | 62 |
| 2026 | 51 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine cooling circuit of an electric machine, overall cooling circuit of a motor vehicle, and motor vehicle29 Sep 2026US 12,749,947 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Electric traction machine for a motor vehicle29 Sep 2026US 12,749,948 B2Bayerische Motoren Werke Aktiengesellschaft
- Drive device that can effectively cool two electric motors22 Sep 2026US 12,742,498 B2Toyota Jidosha Kabushiki Kaisha
- Expansion tank for a cooling system, as well as a cooling system for an electric traction machine for a motor vehicle22 Sep 2026US 12,744,430 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Circulation sump device for an electric drive unit of a vehicle22 Sep 2026US 12,744,431 B2Bayerische Motoren Werke Aktiengesellschaft
- Motor vehicle drive unit and electrically driven motor vehicle drive axle8 Oct 2026US 2026/0309223 A1ZF Friedrichshafen AG
- Electric motor and motor drive system1 Oct 2026US 2026/0302891 A1Honda Motor Co., Ltd.
- Thermal management assembly for a hybrid-electric aircraft propulsion system24 Sep 2026US 2026/0286890 A1Rtx Corporation
- Housing for a vehicle and vehicle with such a housing24 Sep 2026US 2026/0291319 A1ZF Friedrichshafen AG
- Motor unit17 Sep 2026US 2026/0276074 A1Mitsubishi Electric Mobility Corporation
Most cited
By later US patents
- Drive module with spray cooling of electric motor47US 9,306,433 B2e-AAM Driveline Systems AB · 2016
- Electric machines, particularly turbogenerators, having liquid cooled rotors44US 3,968,388 AKraftwerk Union Aktiengesellschaft · 1976
- Shaft sealing device utilizing a non-uniform groove depth34US 4,368,895 AMitsubishi Denki Kabushiki Kaisha · 1983
- Rotating machine using a cooling fluid supplied by a rotating seal32US 4,101,793 AElectricite de France (Service National) · 1978
- Electrical machine having a rotor for cooling the electrical machine31US 9,787,164 B2Siemens Aktiengesellschaft · 2017