F04D 29/0513
Hydrostatic
Official title: {hydrostatic; hydrodynamic thrust bearings}
F04D29/0513 (Hydrostatic) appears on 242 US grants and 263 published applications in this corpus.
Search patents in F04D- Granted patents
- 242
- Published applications
- 263
- Assignees
- 145
- Inventors
- 605
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 3 |
| 2003 | 4 | 4 |
| 2004 | 2 | 3 |
| 2005 | 0 | 5 |
| 2006 | 3 | 5 |
| 2007 | 3 | 8 |
| 2008 | 4 | 5 |
| 2009 | 2 | 5 |
| 2010 | 4 | 6 |
| 2011 | 4 | 6 |
| 2012 | 3 | 14 |
| 2013 | 9 | 16 |
| 2014 | 8 | 10 |
| 2015 | 9 | 18 |
| 2016 | 13 | 11 |
| 2017 | 11 | 11 |
| 2018 | 8 | 16 |
| 2019 | 11 | 13 |
| 2020 | 17 | 17 |
| 2021 | 17 | 16 |
| 2022 | 12 | 16 |
| 2023 | 16 | 19 |
| 2024 | 19 | 19 |
| 2025 | 17 | 13 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Turbo compressor8 Sep 2026US 12,729,691 B2LG Electronics Inc.
- Static gas thrust bearing18 Aug 2026US 12,710,050 B2Garrett Transportation I Inc.
- Thrust bearing with tilting pad2 Jun 2026US 12,644,365 B2Halliburton Energy Services.Inc.
- Fan and electronic device employing fan19 May 2026US 12,631,191 B2Champ Tech Optical (Foshan) Corporation
- Turbo compressor and refrigeration cycle device having turbo compressor31 Mar 2026US 12,590,740 B2LG Electronics Inc.
- Centrifugal compressor13 Aug 2026US 2026/0235134 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Thrust bearing with tilting pad14 May 2026US 2026/0132704 A1Halliburton Energy Services.Inc.
- Fan and electronic device employing fan30 Apr 2026US 2026/0117785 A1Champ Tech Optical (Foshan) Corporation
- Gas supply apparatus16 Apr 2026US 2026/0106188 A1
- Hydrodynamic foil bearing shaft13 Nov 2025US 2025/0347233 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Thermal control system for gas-bearing turbocompressors72US 6,231,302 B12001
- Fluid lubricated bearing assembly62US 3,960,468 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Rotary fluid handling machine having reduced fluid leakage62US 4,472,107 AUnion Carbide Corporation · 1984
- Turbine engine with cooled P3 air to impeller rear cavity59US 6,035,627 APratt & Whitney Canada Corp. · 2000
- Thrust bearing58US 5,951,169 APump Engineering, Inc. · 1999