F04D 29/05
Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
F04D29/05 (Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps) appears on 2,043 US grants and 2,435 published applications in this corpus.
Search patents in F04D- Granted patents
- 2,043
- Published applications
- 2,435
- Assignees
- 724
- Inventors
- 4,110
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 16 | 0 |
| 2000 | 14 | 0 |
| 2001 | 20 | 6 |
| 2002 | 36 | 25 |
| 2003 | 27 | 28 |
| 2004 | 21 | 30 |
| 2005 | 15 | 44 |
| 2006 | 21 | 31 |
| 2007 | 19 | 50 |
| 2008 | 20 | 61 |
| 2009 | 18 | 48 |
| 2010 | 31 | 54 |
| 2011 | 36 | 68 |
| 2012 | 38 | 68 |
| 2013 | 42 | 105 |
| 2014 | 53 | 110 |
| 2015 | 65 | 148 |
| 2016 | 81 | 157 |
| 2017 | 106 | 202 |
| 2018 | 133 | 207 |
| 2019 | 186 | 174 |
| 2020 | 208 | 151 |
| 2021 | 138 | 143 |
| 2022 | 140 | 127 |
| 2023 | 127 | 118 |
| 2024 | 143 | 119 |
| 2025 | 95 | 92 |
| 2026 | 66 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motorized compressor device with air bearing having reduced axial and radial stack-up6 Oct 2026US 12,753,707 B2Garrett Transportation I Inc.
- Fan6 Oct 2026US 12,753,768 B2Levitronix LLC
- Flexible support structure for a geared architecture gas turbine engine29 Sep 2026US 12,747,675 B2Rtx Corporation
- Magnetic bearing and compressor22 Sep 2026US 12,742,475 B2Gree Electric Appliances, Inc. of Zhuhai
- Electric centrifugal compressor8 Sep 2026US 12,729,690 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Compressor assembly1 Oct 2026US 2026/0298254 A1Siemens Energy Global GmbH & Co. KG
- Radial compressor with radial bearing and radial seal1 Oct 2026US 2026/0298255 A1ebm-papst Mulfingen GmbH & Co. KGaA & Co. KG
- A vacuum pump and a permanent magnetic bearing assembly for a vacuum pump24 Sep 2026US 2026/0286969 A1
- Magnetic assembly and vacuum pump17 Sep 2026US 2026/0275991 A1Leybold Aktiengesellschaft
- Centrifugal compressor10 Sep 2026US 2026/0266311 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Dual-pressure blower for positive air pressure device333US 6,349,724 B1Compumedics Sleep Pty Ltd · 2002
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Compressor149US 5,857,348 AMultistack International Limited · 1999
- Centrifugal compressor110US 4,523,896 ACreusot-Loire · 1985
- Method for preventing collision of two mutually movable bodies and an apparatus including an arrangement for preventing collision109US 4,578,757 AU. S. Philips Corporation · 1986