Fluid system with a proppant mixing pump
US-12584468-B2 · Mar 24, 2026 · US
Mechanical driving means therefor, e.g. cams
Mechanical driving means therefor, e.g. cams · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04B7/0057 |
| Official title | {Mechanical driving means therefor, e.g. cams} |
| Display label | Mechanical driving means therefor, e.g. cams |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve shaft pump with coordinated pumping and valving operations
US-12544504-B2 · Feb 10, 2026 · US
Peristaltic pump with constant biasing force
US-12478728-B2 · Nov 25, 2025 · US
Fluid system with a proppant mixing pump
US-2024287976-A1 · Aug 29, 2024 · US
Pinch valve for fluid injector system
US-2023218883-A1 · Jul 13, 2023 · US
Valve shaft pump with coordinated pumping and valving operations
US-2023064224-A1 · Mar 2, 2023 · US
Peristaltic pump with constant biasing force
US-2022233763-A1 · Jul 28, 2022 · US
Positive drive actuated valve for reciprocating compressor and method
US-10830231-B2 · Nov 10, 2020 · US
Pump unit for feeding fuel to an internal combustion engine
US-2020208597-A1 · Jul 2, 2020 · US
Reciprocating compressor with vapor injection system
US-10352308-B2 · Jul 16, 2019 · US
Reciprocating compressor with vapor injection system
US-10280918-B2 · May 7, 2019 · US
Adjusting opening times of a cam actuated valve, reciprocating compressor and method
US-10253760-B2 · Apr 9, 2019 · US
Pump bearing flow control
US-2018340471-A1 · Nov 29, 2018 · US
Direct actuated valve control hydraulic pump and motor
US-2018209414-A1 · Jul 26, 2018 · US
Fuel pump
US-10001098-B2 · Jun 19, 2018 · US
Piston pump and device for feeding and metering a fluid for medical purposes by means of a piston pump
US-9427517-B2 · Aug 30, 2016 · US
Fuel pump
US-2016245248-A1 · Aug 25, 2016 · US
Reciprocating Compressor With Vapor Injection System
US-2016245278-A1 · Aug 25, 2016 · US
Internal cam metering pump
US-9416775-B2 · Aug 16, 2016 · US
Internal cam metering pump
US-2016000999-A1 · Jan 7, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B7/0057?
- CPC F04B7/0057 is the Cooperative Patent Classification code for “Mechanical driving means therefor, e.g. cams.”
- How many patents are filed under CPC F04B7/0057 (Mechanical driving means therefor, e.g. cams)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC F04B7/0057 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).