F04B 2201/0202
Linear speed of the piston
F04B2201/0202 (Linear speed of the piston) appears on 99 US grants and 95 published applications in this corpus.
Search patents in F04B- Granted patents
- 99
- Published applications
- 95
- Assignees
- 83
- Inventors
- 207
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 2 | 5 |
| 2014 | 2 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 3 |
| 2017 | 1 | 9 |
| 2018 | 5 | 9 |
| 2019 | 9 | 8 |
| 2020 | 7 | 11 |
| 2021 | 9 | 5 |
| 2022 | 7 | 7 |
| 2023 | 3 | 12 |
| 2024 | 14 | 4 |
| 2025 | 6 | 1 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single-phase field-oriented control for a linear compressor6 Oct 2026US 12,753,752 B1Haier US Appliance Solutions, Inc.
- Method for operating a construction-material and/or viscous-material pump for conveying construction material and/or viscous material, and construction-material and/or viscous-material pump for conveying construction material and/or viscous material28 Jul 2026US 12,692,860 B2Putzmeister Engineering GmbH
- Liquid delivery pump10 Feb 2026US 12,546,299 B2Hitachi High-Tech Corporation
- Methods of increasing efficiency of plunger lift operations10 Feb 2026US 12,546,304 B2ExxonMobil Technology and Engineering Company
- Driving fluid cylinder and driven fluid cylinder and buffer16 Dec 2025US 12,497,962 B2I-Jack Technologies Incorporated
- Pump for hvac&r system13 Aug 2026US 2026/0235114 A1Tyco Fire & Security GmbH
- Method for operating a linear motor compressor, and linear motor compressor13 Aug 2026US 2026/0235117 A1Burckhardt Compression AG
- Fluid machine and method for controlling such a machine14 May 2026US 2026/0132780 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Gas compressor and system and method for gas compressing19 Mar 2026US 2026/0078751 A1I-Jack Technologies Incorporated
- Pump and fluid displacer for a pump1 Jan 2026US 2026/0002526 A1Graco Minnesota Inc.
Most cited
By later US patents
- Blood pump actuator273US 5,360,445 AInternational Business Machines Corporation · 1994
- Electronic control interface for fluid powered diaphragm pump43US 5,257,914 AWarren Rupp, Inc. · 1993
- Linear compressor drive device39US 6,753,665 B2Matsushita Electric Industrial Co., Ltd. · 2004
- Sludge pump with monitoring system38US 5,388,965 AFriedrich Wilhelm Schwing GmbH · 1995
- Method for increasing compressed air efficiency in a pump37US 8,485,792 B2Warren Rupp, Inc. · 2013