F04B 53/006
Crankshafts
Official title: {Crankshafts}
F04B53/006 (Crankshafts) appears on 179 US grants and 236 published applications in this corpus.
Search patents in F04B- Granted patents
- 179
- Published applications
- 236
- Assignees
- 131
- Inventors
- 406
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 9 |
| 2013 | 2 | 6 |
| 2014 | 3 | 6 |
| 2015 | 5 | 16 |
| 2016 | 8 | 17 |
| 2017 | 8 | 9 |
| 2018 | 12 | 9 |
| 2019 | 12 | 9 |
| 2020 | 6 | 11 |
| 2021 | 12 | 33 |
| 2022 | 17 | 29 |
| 2023 | 21 | 14 |
| 2024 | 17 | 25 |
| 2025 | 20 | 20 |
| 2026 | 20 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crankshaft and connecting rod assemblies for hydraulic fracturing pumps29 Sep 2026US 12,747,728 B2BJ Energy Solutions, LLC
- Fluid end block and fluid end for a multiplex piston pump having multiple inlet passages15 Sep 2026US 12,736,035 B2
- Fluid end assembly18 Aug 2026US 12,710,039 B2Kerr Machine Co.
- Power end of reciprocating pump with fastener assembly11 Aug 2026US 12,704,124 B2Gd Energy Products, LLC
- Pump with conduit system fluidly coupled to cylinders21 Jul 2026US 12,687,165 B2Ingersoll-Rand Industrial U.S., Inc.
- Fluid end block and fluid end for a multiplex piston pump having multiple inlet passages20 Aug 2026US 2026/0243239 A1
- Power end of reciprocating pump with fastener assembly20 Aug 2026US 2026/0243251 A1Gd Energy Products, LLC
- Oil-free air compressor transmission structure, oil-free air compressor and vehicle6 Aug 2026US 2026/0226892 A1Zhejiang Ruili Air Compressor Equipment Co., Ltd.
- Modular power end25 Jun 2026US 2026/0177043 A1Kerr Machine Co.
- Hydraulic Linkage Plunger Pushing Mechanism and Plunger Diaphragm Pump Using Same25 Jun 2026US 2026/0177047 A1Shanghai Nikuni Fluid System Co., Ltd.
Most cited
By later US patents
- Pump drivetrain damper system and control systems and methods for same206US 10,316,832 B2S,P.M. Flow Control, Inc. · 2019
- Pump system and method of starting pump174US 10,221,856 B2BJ Services Company · 2019
- Drive system for hydraulic fracturing pump99US 11,168,681 B2ST9 Gas and Oil, LLC · 2021
- Pump gear99US 9,097,249 B2Bran & Luebbe GmbH · 2015
- Connecting rod and crosshead assembly for enhancing the performance of a reciprocating pump69US 10,393,113 B2S,P.M. Flow Control, Inc. · 2019