F04D 29/0465
Ceramic bearing designs
Official title: {Ceramic bearing designs}
F04D29/0465 (Ceramic bearing designs) appears on 124 US grants and 62 published applications in this corpus.
Search patents in F04D- Granted patents
- 124
- Published applications
- 62
- Assignees
- 79
- Inventors
- 220
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 5 |
| 2014 | 2 | 3 |
| 2015 | 3 | 1 |
| 2016 | 3 | 6 |
| 2017 | 4 | 4 |
| 2018 | 5 | 7 |
| 2019 | 7 | 4 |
| 2020 | 5 | 2 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 4 | 3 |
| 2024 | 6 | 3 |
| 2025 | 1 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic fluid pump assembly for aquarium14 Jul 2026US 12,680,547 B2EcoTech, LLC
- Portable fan, drive circuit, handheld fan, and neck fan13 Jan 2026US 12,523,231 B2Shenzhen Jisu Technology Co., Ltd
- Conveying a fluid containing a (meth)acrylic monomer by means of a pump6 Jan 2026US 12,516,675 B2BASF SE
- ESP motor radial bearing anti-rotation tab retention18 Feb 2025US 12,228,171 B2Halliburton Energy Services.Inc.
- Aquarium fluid pump assembly with magnectic rotator24 Dec 2024US 12,173,716 B2EcoTech, LLC
- Portable fan, drive circuit, handheld fan, and neck fan12 Feb 2026US 2026/0043411 A1Shenzhen Jisu Technology Co., Ltd
- Fluid pump assembly17 Apr 2025US 2025/0122879 A1EcoTech, LLC
- Portable fan, drive circuit, handheld fan, and neck fan13 Feb 2025US 2025/0052250 A1Shenzhen Jisu Technology Co., Ltd
- ESP Motor Radial Bearing Anti-Rotation Tab Retention28 Nov 2024US 2024/0392830 A1Halliburton Energy Services.Inc.
- Fluid pump assembly23 May 2024US 2024/0167477 A1EcoTech, LLC
Most cited
By later US patents
- Method for providing a jewel bearing for supporting a pump rotor shaft388US 6,254,359 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2001
- Axial flow blood pump with hydrodynamically suspended rotor386US 5,211,546 ANu-Tech Industries, Inc. · 1993
- Hydrodynamically suspended rotor axial flow blood pump245US 5,112,200 ANu-Tech Industries, Inc. · 1992
- Motor driven sealless blood pump239US 5,399,074 AKYOCERA Corporation · 1995
- Liquid pump with axial thrust washer198US 9,347,457 B2Robert Bosch GmbH · 2016