F04B 1/14
Having stationary cylinders
Official title: having stationary cylinders
F04B1/14 (Having stationary cylinders) appears on 483 US grants and 454 published applications in this corpus.
Search patents in F04B- Granted patents
- 483
- Published applications
- 454
- Assignees
- 262
- Inventors
- 905
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 9 | 3 |
| 2002 | 16 | 10 |
| 2003 | 10 | 10 |
| 2004 | 9 | 13 |
| 2005 | 6 | 8 |
| 2006 | 4 | 11 |
| 2007 | 4 | 10 |
| 2008 | 7 | 4 |
| 2009 | 4 | 14 |
| 2010 | 4 | 14 |
| 2011 | 5 | 12 |
| 2012 | 6 | 11 |
| 2013 | 10 | 16 |
| 2014 | 10 | 22 |
| 2015 | 13 | 24 |
| 2016 | 14 | 23 |
| 2017 | 22 | 39 |
| 2018 | 22 | 27 |
| 2019 | 21 | 27 |
| 2020 | 29 | 23 |
| 2021 | 29 | 37 |
| 2022 | 30 | 28 |
| 2023 | 30 | 22 |
| 2024 | 20 | 19 |
| 2025 | 17 | 14 |
| 2026 | 20 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotary swash plate hydraulic pump15 Sep 2026US 12,736,037 B2Kawasaki Jukogyo Kabushiki Kaisha
- Fracturing blender system and method using liquid petroleum gas8 Sep 2026US 12,729,613 B1Typhon Technology Solutions (U.S.), LLC
- Hydraulic pump8 Sep 2026US 12,729,695 B2Valeo Embrayages
- Rotary swash plate hydraulic pump1 Sep 2026US 12,723,575 B2Kawasaki Jukogyo Kabushiki Kaisha
- Rotary swash plate hydraulic pump1 Sep 2026US 12,723,576 B2Kawasaki Jukogyo Kabushiki Kaisha
- Active checked multiple displacer assembly1 Oct 2026US 2026/0298217 A1Graco Minnesota Inc.
- Slipper component with ceramic surface30 Jul 2026US 2026/0218689 A1Ocean Pacific Technologies
- Piston pump of the type having at least three pumping chambers23 Jul 2026US 2026/0210343 A1Mixtron S.R.L.
- Dual pump vfd controlled motor electric fracturing system25 Jun 2026US 2026/0176944 A1Typhon Technology Solutions (U.S.), LLC
- Wobble plate for sprayer cleaning systems18 Jun 2026US 2026/0166572 A1Techtronic Cordless GP
Most cited
By later US patents
- Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas341US 9,140,110 B2Evolution Well Services, LLC · 2015
- Electric blender system, apparatus and method for use in fracturing underground formations using liquid petroleum gas225US 10,107,085 B2Evolution Well Services, LLC · 2018
- System and method for dedicated electric source for use in fracturing underground formations using liquid petroleum gas223US 10,107,084 B2Evolution Well Services, LLC · 2018
- Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas145US 9,475,020 B2Evolution Well Services, LLC · 2016
- Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas99US 9,475,021 B2Evolution Well Services, LLC · 2016