F04B 49/035
Bypassing
F04B49/035 (Bypassing) appears on 134 US grants and 145 published applications in this corpus.
Search patents in F04B- Granted patents
- 134
- Published applications
- 145
- Assignees
- 119
- Inventors
- 326
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 6 |
| 2003 | 3 | 3 |
| 2004 | 4 | 9 |
| 2005 | 3 | 4 |
| 2006 | 5 | 3 |
| 2007 | 4 | 4 |
| 2008 | 1 | 3 |
| 2009 | 1 | 5 |
| 2010 | 1 | 2 |
| 2011 | 2 | 3 |
| 2012 | 3 | 5 |
| 2013 | 2 | 5 |
| 2014 | 3 | 8 |
| 2015 | 5 | 5 |
| 2016 | 7 | 9 |
| 2017 | 5 | 4 |
| 2018 | 6 | 11 |
| 2019 | 9 | 4 |
| 2020 | 4 | 9 |
| 2021 | 10 | 7 |
| 2022 | 8 | 13 |
| 2023 | 7 | 3 |
| 2024 | 6 | 11 |
| 2025 | 9 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of starting and stopping pump apparatuses coupled in series7 Apr 2026US 12,595,799 B2Ebara Corporation
- Pressure washer apparatus31 Mar 2026US 12,589,416 B2Andreas Stihl AG & CO.KG
- Hydraulic unit24 Mar 2026US 12,584,504 B2Daikin Industries, Ltd.
- Air dryer apparatus for a vehicle air brake charging system25 Nov 2025US 12,479,410 B2Bendix Commercial Vehicle Systems LLC
- Fuel pump25 Nov 2025US 12,480,465 B2Hitachi Astemo, Ltd.
- Gas Compressor20 Aug 2026US 2026/0243261 A1Hitachi Industrial Equipment Systems Co., Ltd.
- High pressure pump with bypass flow for lpg fuel30 Apr 2026US 2026/0117729 A1Stanadyne Operating Company LLC
- Controlling suction valves of a fluid pump18 Dec 2025US 2025/0382956 A1SPM Oil & Gas Inc.
- Controlling suction valves of a fluid pump20 Nov 2025US 2025/0354546 A1SPM Oil & Gas Inc.
- Method of starting and stopping pump apparatuses coupled in series6 Nov 2025US 2025/0341215 A1Ebara Corporation
Most cited
By later US patents
- Motor driven air compressor having a combined vent valve and check valve assembly55US 5,681,151 ADeVilbiss Air Power Company · 1997
- Energy efficient fluid pump45US 5,918,573 A1999
- Piston and valve arrangement for a wobble plate type pump26US 5,632,607 AShurflo Pump Manufacturing Co. · 1997
- Low profile positive displacement pump system21US 5,700,137 AGP Companies, Inc. · 1997
- Soft start valve21US 6,120,260 ASPX Corporation · 2000