F04D 29/08
Sealings
F04D29/08 (Sealings) appears on 2,750 US grants and 2,746 published applications in this corpus.
Search patents in F04D- Granted patents
- 2,750
- Published applications
- 2,746
- Assignees
- 1,075
- Inventors
- 5,697
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 9 | 0 |
| 1980 | 14 | 0 |
| 1981 | 14 | 0 |
| 1982 | 13 | 0 |
| 1983 | 13 | 0 |
| 1984 | 12 | 0 |
| 1985 | 11 | 0 |
| 1986 | 17 | 0 |
| 1987 | 24 | 0 |
| 1988 | 22 | 0 |
| 1989 | 28 | 0 |
| 1990 | 30 | 0 |
| 1991 | 26 | 0 |
| 1992 | 36 | 0 |
| 1993 | 26 | 0 |
| 1994 | 38 | 0 |
| 1995 | 23 | 0 |
| 1996 | 36 | 0 |
| 1997 | 25 | 0 |
| 1998 | 39 | 0 |
| 1999 | 27 | 0 |
| 2000 | 27 | 0 |
| 2001 | 49 | 9 |
| 2002 | 45 | 33 |
| 2003 | 36 | 55 |
| 2004 | 35 | 44 |
| 2005 | 44 | 64 |
| 2006 | 32 | 49 |
| 2007 | 25 | 63 |
| 2008 | 30 | 50 |
| 2009 | 23 | 58 |
| 2010 | 42 | 80 |
| 2011 | 28 | 68 |
| 2012 | 46 | 84 |
| 2013 | 64 | 127 |
| 2014 | 64 | 143 |
| 2015 | 84 | 172 |
| 2016 | 98 | 211 |
| 2017 | 144 | 215 |
| 2018 | 148 | 226 |
| 2019 | 225 | 179 |
| 2020 | 210 | 164 |
| 2021 | 174 | 149 |
| 2022 | 167 | 117 |
| 2023 | 118 | 104 |
| 2024 | 107 | 104 |
| 2025 | 98 | 78 |
| 2026 | 57 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid pump and method of manufacturing same6 Oct 2026US 12,753,765 B2Temco Industrial, LLC
- Pump diffuser anti-rotation and alignment assembly6 Oct 2026US 12,753,774 B2Pentair Flow Technologies, LLC
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper29 Sep 2026US 12,747,732 B2Gardner Denver Deutschland GmbH
- Compressor29 Sep 2026US 12,747,734 B2Mitsubishi Heavy Industries Compressor Corporation
- Compressor with integrated speed multiplier15 Sep 2026US 12,736,057 B2TURBODEN S. p. A.
- Melamine process with urea melt-based washing of melamine offgas1 Oct 2026US 2026/0297039 A1Casale SA
- Vertical turbine pump with roller bearing support1 Oct 2026US 2026/0298243 A1Unted Flo, LLC
- Pump unit1 Oct 2026US 2026/0298248 A1Ebara Corporation
- Radial compressor with radial bearing and radial seal1 Oct 2026US 2026/0298255 A1ebm-papst Mulfingen GmbH & Co. KGaA & Co. KG
- Device for Forming a Sliding Bearing or a Slip-Ring Seal Having Integrated Temperature Measurement24 Sep 2026US 2026/0287012 A1KSB SE & Co. KGaA
Most cited
By later US patents
- Cardiac assist pump with steady rate supply of fluid lubricant443US 4,927,407 ARegents of the University of Minnesota · 1990
- Anti-thrombogenic blood pump338US 4,704,121 ANimbus, Inc. · 1987
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Centrifugal blood pump for cardiac assist307US 4,135,253 AMedtronic, Inc. · 1979
- Fluid motor driven blood pump236US 5,145,333 AThe Cleveland Clinic Foundation · 1992