F04D 29/049
Roller bearings
F04D29/049 (Roller bearings) appears on 167 US grants and 135 published applications in this corpus.
Search patents in F04D- Granted patents
- 167
- Published applications
- 135
- Assignees
- 139
- Inventors
- 382
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 4 |
| 2004 | 5 | 5 |
| 2005 | 6 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 7 |
| 2009 | 0 | 4 |
| 2010 | 2 | 4 |
| 2011 | 2 | 5 |
| 2012 | 4 | 1 |
| 2013 | 1 | 7 |
| 2014 | 6 | 5 |
| 2015 | 2 | 8 |
| 2016 | 2 | 4 |
| 2017 | 4 | 8 |
| 2018 | 4 | 4 |
| 2019 | 8 | 10 |
| 2020 | 8 | 8 |
| 2021 | 5 | 8 |
| 2022 | 7 | 7 |
| 2023 | 11 | 8 |
| 2024 | 5 | 7 |
| 2025 | 10 | 5 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Split thrust chamber for downhole pump25 Aug 2026US 12,716,417 B2Halliburton Energy Services.Inc.
- Pump, a bearing assembly for a pump and a method of assembling the bearing assembly26 May 2026US 12,638,053 B2Edwards Limited
- Turbopump capable of balancing axial thrust21 Apr 2026US 12,607,195 B2Korea Aerospace Research Institute
- High pressure magnetic coupling shrouds and methods of producing the same14 Apr 2026US 12,601,352 B2General Electric Company
- Bearing arrangement of a pump and method of operating7 Apr 2026US 12,595,803 B2Aktiebolaget Skf
- Vertical turbine pump with roller bearing support1 Oct 2026US 2026/0298243 A1Unted Flo, LLC
- Vortex slurry pump23 Jul 2026US 2026/0210362 A1
- Split thrust chamber for downhole pump11 Jun 2026US 2026/0160256 A1Halliburton Energy Services.Inc.
- Micro-axial pump with press-fit impeller30 Apr 2026US 2026/0122846 A1Hewlett Packard Enterprise Development LP
- Impeller bearings for pumps22 Jan 2026US 2026/0022706 A1General Electric Company
Most cited
By later US patents
- Bearing arrangement for molten aluminum pumps139US 5,685,701 AMetaullics Systems Co., L.P. · 1997
- Linear motor compressor and its application in cooling system73US 5,818,131 A1998
- Diesel engine water pump with improved water seal61US 6,884,022 B2General Motors Corporation · 2005
- Blood pump rotor bearings60US 9,144,638 B2Thoratec Corporation · 2015
- Pump and motor unit with inducer at one end and centrifugal impeller at opposite end of the motor44US 3,975,117 A1976