F04D 29/10
Shaft sealings
F04D29/10 (Shaft sealings) appears on 1,188 US grants and 1,040 published applications in this corpus.
Search patents in F04D- Granted patents
- 1,188
- Published applications
- 1,040
- Assignees
- 600
- Inventors
- 2,498
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 4 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 13 | 0 |
| 1987 | 13 | 0 |
| 1988 | 17 | 0 |
| 1989 | 17 | 0 |
| 1990 | 19 | 0 |
| 1991 | 22 | 0 |
| 1992 | 24 | 0 |
| 1993 | 14 | 0 |
| 1994 | 22 | 0 |
| 1995 | 13 | 0 |
| 1996 | 23 | 0 |
| 1997 | 13 | 0 |
| 1998 | 23 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 20 | 5 |
| 2002 | 23 | 13 |
| 2003 | 14 | 25 |
| 2004 | 16 | 16 |
| 2005 | 20 | 27 |
| 2006 | 14 | 19 |
| 2007 | 9 | 22 |
| 2008 | 11 | 18 |
| 2009 | 6 | 20 |
| 2010 | 22 | 37 |
| 2011 | 10 | 24 |
| 2012 | 18 | 34 |
| 2013 | 28 | 50 |
| 2014 | 22 | 54 |
| 2015 | 35 | 60 |
| 2016 | 47 | 77 |
| 2017 | 52 | 69 |
| 2018 | 55 | 69 |
| 2019 | 73 | 75 |
| 2020 | 65 | 57 |
| 2021 | 68 | 67 |
| 2022 | 61 | 55 |
| 2023 | 54 | 36 |
| 2024 | 46 | 44 |
| 2025 | 35 | 36 |
| 2026 | 24 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Electric centrifugal compressor8 Sep 2026US 12,729,690 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Tandem seal pump8 Sep 2026US 12,729,692 B2Ceco Environmental IP Inc.
- Sacrificial anode assembly for a seal section of an electric submersible pump (ESP) assembly1 Sep 2026US 12,723,593 B2Halliburton Energy Services.Inc.
- Device for Forming a Sliding Bearing or a Slip-Ring Seal Having Integrated Temperature Measurement24 Sep 2026US 2026/0287012 A1KSB SE & Co. KGaA
- Water pump device17 Sep 2026US 2026/0275995 A1Spring Come Industrial Co., Ltd.
- Sealing system for hvac&r system17 Sep 2026US 2026/0275996 A1Tyco Fire & Security GmbH
- Blower13 Aug 2026US 2026/0235135 A1Panasonic Intellectual Property Management Co., Ltd.
- Compressor13 Aug 2026US 2026/0235136 A1Mitsubishi Heavy Industries Compressor Corporation
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
- 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
- Centrifugal blood pump with impeller212US 4,589,822 AMICI Limited Partnership IV · 1986