H02K 5/128
Using air-gap sleeves or air-gap discs
Official title: using air-gap sleeves or air-gap discs
H02K5/128 (Using air-gap sleeves or air-gap discs) appears on 719 US grants and 633 published applications in this corpus.
Search patents in H02K- Granted patents
- 719
- Published applications
- 633
- Assignees
- 443
- Inventors
- 1,670
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 16 | 0 |
| 1989 | 13 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 14 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 22 | 0 |
| 2001 | 12 | 4 |
| 2002 | 15 | 12 |
| 2003 | 17 | 28 |
| 2004 | 14 | 13 |
| 2005 | 14 | 17 |
| 2006 | 10 | 16 |
| 2007 | 6 | 17 |
| 2008 | 10 | 21 |
| 2009 | 13 | 18 |
| 2010 | 12 | 30 |
| 2011 | 13 | 22 |
| 2012 | 15 | 19 |
| 2013 | 14 | 45 |
| 2014 | 20 | 40 |
| 2015 | 26 | 25 |
| 2016 | 16 | 26 |
| 2017 | 24 | 36 |
| 2018 | 28 | 23 |
| 2019 | 46 | 25 |
| 2020 | 38 | 24 |
| 2021 | 16 | 35 |
| 2022 | 17 | 41 |
| 2023 | 26 | 33 |
| 2024 | 30 | 25 |
| 2025 | 25 | 25 |
| 2026 | 15 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Canned rotodynamic flow machine for a molten salt nuclear reactor and an active magnetic bearing for use in a flow machine for a molten salt nuclear reactor12 May 2026US 12,624,698 B2Copenhagen Atomics A/S
- Oil pump5 May 2026US 12,618,411 B1Zhuhai Pristar Technology Co., Ltd.
- Canned motor for electric submersible pump14 Apr 2026US 12,603,546 B2Schlumberger Technology Corporation
- Axial direct drive sealless pump or turbine with deformation-resistant cover plate17 Mar 2026US 12,577,954 B2Flowserve Pte. Ltd.
- Electric machine and motor vehicle with wall element and tooth head ring17 Mar 2026US 12,580,432 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Method for producing an air-gap sleeve for an electrical machine24 Sep 2026US 2026/0291320 A1ZF Friedrichshafen AG
- Canned Rotodynamic Flow Machine For A Molten Salt Nuclear Reactor And An Active Magnetic Bearing For Use In A Flow Machine For A Molten Salt Nuclear Reactor20 Aug 2026US 2026/0243262 A1Copenhagen Atomics A/S
- Axial gap type electric motor for water pump (ewp)13 Aug 2026US 2026/0238048 A1Amotech Co., Ltd.
- Stator for axial gap type electric motor and manufacturing method therefor13 Aug 2026US 2026/0238062 A1Amotech Co., Ltd.
- Motor and pump comprising same13 Aug 2026US 2026/0238067 A1LG Innotek Co., Ltd.
Most cited
By later US patents
- Method and apparatus for cardiac blood flow assistance452US 5,964,694 AGuidant Corporation · 1999
- Method and apparatus for cardiac blood flow assistance397US 5,911,685 AGuidant Corporation · 1999
- Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings378US 5,695,471 AKriton Medical, Inc. · 1997
- Magnetically suspended rotor axial flow blood pump373US 4,779,614 ANimbus Medical, Inc. · 1988
- Bearingless blood pump and electronic drive system372US 6,071,093 AABIOMED, Inc. · 2000