F04D 29/083
Especially adapted for elastic fluid pumps
Official title: {especially adapted for elastic fluid pumps}
F04D29/083 (Especially adapted for elastic fluid pumps) appears on 567 US grants and 676 published applications in this corpus.
Search patents in F04D- Granted patents
- 567
- Published applications
- 676
- Assignees
- 253
- Inventors
- 1,326
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 2 |
| 2003 | 7 | 13 |
| 2004 | 8 | 6 |
| 2005 | 4 | 6 |
| 2006 | 3 | 6 |
| 2007 | 2 | 15 |
| 2008 | 7 | 9 |
| 2009 | 4 | 8 |
| 2010 | 3 | 8 |
| 2011 | 8 | 14 |
| 2012 | 6 | 24 |
| 2013 | 12 | 30 |
| 2014 | 17 | 33 |
| 2015 | 19 | 42 |
| 2016 | 22 | 55 |
| 2017 | 32 | 76 |
| 2018 | 31 | 83 |
| 2019 | 71 | 42 |
| 2020 | 85 | 43 |
| 2021 | 37 | 41 |
| 2022 | 49 | 30 |
| 2023 | 35 | 28 |
| 2024 | 24 | 24 |
| 2025 | 27 | 19 |
| 2026 | 7 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forward load reduction structures for aft-most stages of high pressure compressors14 Jul 2026US 12,680,557 B2General Electric Company
- Pump and method of manufacturing a sealing30 Jun 2026US 12,669,124 B2Pfeiffer Vacuum Technology AG
- Compressor bleed air exhaust ducting for gas turbine engine systems23 Jun 2026US 12,663,021 B1Rolls-Royce North American Technologies Inc.
- Turbomolecular pump16 Jun 2026US 12,655,850 B2Detect-Ion LLC
- Side channel compressor having a seal assembly14 Apr 2026US 12,601,359 B2Gardner Denver Deutschland GmbH
- Radial compressor with radial bearing and radial seal1 Oct 2026US 2026/0298255 A1ebm-papst Mulfingen GmbH & Co. KGaA & Co. KG
- Fan with seal and vacuum operated pneumatic linear drive connected thereto17 Sep 2026US 2026/0275994 A1ebm-papst Mulfingen GmbH & Co. KGaA & Co. KG
- Compressor dry gas seal emissions10 Sep 2026US 2026/0266306 A1AES Engineering Ltd.
- High-protection external rotor axial flow fan3 Sep 2026US 2026/0258809 A1Zhongshan Ebs Technology Co., Ltd.
- Side channel compressor having a seal assembly20 Aug 2026US 2026/0243268 A1
Most cited
By later US patents
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Air blower apparatus115US 6,386,845 B12002
- Turbine inner shroud and turbine assembly containing such inner shroud76US 6,315,519 B1General Electric Company · 2001
- Gas turbine engine shroud sealing arrangement67US 7,217,089 B2Pratt & Whitney Canada Corp. · 2007
- Method and apparatus for reducing stress on the tips of turbine or compressor blades66US 5,476,363 APratt & Whitney · 1995