F04C 14/26
Using bypass channels
Official title: using bypass channels
F04C14/26 (Using bypass channels) appears on 329 US grants and 206 published applications in this corpus.
Search patents in F04C- Granted patents
- 329
- Published applications
- 206
- Assignees
- 185
- Inventors
- 629
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 9 | 0 |
| 2002 | 8 | 4 |
| 2003 | 4 | 18 |
| 2004 | 11 | 7 |
| 2005 | 9 | 9 |
| 2006 | 3 | 8 |
| 2007 | 3 | 6 |
| 2008 | 6 | 13 |
| 2009 | 2 | 10 |
| 2010 | 8 | 7 |
| 2011 | 6 | 1 |
| 2012 | 6 | 8 |
| 2013 | 5 | 12 |
| 2014 | 10 | 11 |
| 2015 | 6 | 19 |
| 2016 | 15 | 13 |
| 2017 | 12 | 11 |
| 2018 | 15 | 11 |
| 2019 | 10 | 7 |
| 2020 | 9 | 8 |
| 2021 | 2 | 4 |
| 2022 | 5 | 7 |
| 2023 | 9 | 3 |
| 2024 | 8 | 3 |
| 2025 | 2 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pre-pressurized system with reverse rotation of pump for valve actuation16 Dec 2025US 12,497,957 B2Johnson Electric Motion Technology Canada Ltd.
- Electric pump system and method with hollow shaft and temperature sensor4 Nov 2025US 12,460,635 B2Tesla, Inc.
- Double pump22 Oct 2024US 12,123,410 B2Danhydra A/S
- Relief valve and pump cover10 Sep 2024US 12,085,180 B2Mitsuba Corporation
- Hydraulic automatic transmission bicycle30 Jul 2024US 12,049,282 B2
- Lubrication system for an internal combustion engine25 Jun 2026US 2026/0176992 A1DAF Trucks N. V.
- Mutant gene detection method18 Jun 2026US 2026/0168008 A1Hitachi High-Tech Corporation
- Electric pump system and method with hollow shaft and temperature sensor18 Jun 2026US 2026/0168491 A1Tesla, Inc.
- Pump and method for adjusting the delivery rate of a pump1 May 2025US 2025/0137455 A1ITT Bornemann GmbH
- Gerotor Pump And Motor/Pump Unit20 Feb 2025US 2025/0059973 A1Thomas Magnete GmbH
Most cited
By later US patents
- Overheat protection for fluid pump89US 6,837,688 B2Standex International Corporation · 2005
- Oil pump pressure control device85US 8,038,416 B2Yamada Manufacturing Co., Ltd. · 2011
- Pump with conveying chamber formed in outer rotor surface55US 7,674,100 B2PDD Innovations Ltd. · 2010
- Hot melt adhesive foam pump system51US 4,200,207 ANordson Corporation · 1980
- Downhole motor assembly and method for torque regulation43US 7,757,781 B2Halliburton Energy Services.Inc. · 2010