F04D 29/2266
For sealing or thrust balance
Official title: {for sealing or thrust balance (F04D29/04 and F04D29/16 take precedence)}
F04D29/2266 (For sealing or thrust balance) appears on 150 US grants and 128 published applications in this corpus.
Search patents in F04D- Granted patents
- 150
- Published applications
- 128
- Assignees
- 128
- Inventors
- 337
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 4 | 5 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 3 | 3 |
| 2008 | 3 | 3 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 1 | 2 |
| 2012 | 2 | 1 |
| 2013 | 3 | 5 |
| 2014 | 2 | 3 |
| 2015 | 2 | 8 |
| 2016 | 3 | 6 |
| 2017 | 7 | 20 |
| 2018 | 3 | 10 |
| 2019 | 13 | 13 |
| 2020 | 14 | 7 |
| 2021 | 10 | 4 |
| 2022 | 6 | 5 |
| 2023 | 7 | 7 |
| 2024 | 4 | 4 |
| 2025 | 4 | 4 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas turbine engine defining a rotor cavity11 Aug 2026US 12,704,095 B2General Electric Company
- Fluid pump including an impeller26 May 2026US 12,638,020 B1ITT Manufacturing Enterprises, Inc.
- Gas turbine engine defining a rotor cavity10 Mar 2026US 12,571,351 B2General Electric Company
- Extended wheel tip and back-disk cavity24 Feb 2026US 12,560,176 B1Garrett Transportation I Inc.
- Impeller, drainage pump and indoor unit of air conditioner2 Dec 2025US 12,486,854 B2Welling (Wuhu) Motor Manufacturing Co., Ltd.
- Pump system30 Jul 2026US 2026/0218719 A1Pentair Flow Technologies, LLC
- Fluid pump with inlet seal device11 Jun 2026US 2026/0160261 A1
- Fluid pump including an impeller28 May 2026US 2026/0146622 A1ITT Manufacturing Enterprises, Inc.
- Water Pump30 Apr 2026US 2026/0117775 A1Coavis
- Water Pump26 Mar 2026US 2026/0085693 A1Coavis
Most cited
By later US patents
- Pump impeller seals with spiral grooves127US 4,242,039 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1980
- Environmentally safe pump including seal93US 5,499,902 AEnvironamics Corporation · 1996
- Systems and methods for balancing thrust loads in a heat engine system53US 10,495,098 B2Echogen Power Systems, LLC · 2019
- Method and device for reducing axial thrust in rotary machines and a centrifugal pump using same50US 6,129,507 ATechnology Commercialization Corp. · 2000
- Seal/bearing assembly41US 5,827,042 AA. W. Chesterton Company · 1998