Power generating unit
US-11649821-B2 · May 16, 2023 · US
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Reciprocating-piston liquid engines
Reciprocating-piston liquid engines · 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 | F03C1/00 |
| Official title | Reciprocating-piston liquid engines |
| Display label | Reciprocating-piston liquid engines |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 3 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power generating unit
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Device for supplying and modifying a cylinder cubic capacity of a hydraulic motor
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Electric tree felling head and associated control system for a forestry vehicle
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Apparatus and method for controlling construciton machine
US-2018195254-A1 · Jul 12, 2018 · US
Braking system for a hydraulic machine
US-2018017117-A1 · Jan 18, 2018 · US
Apparatus and method for processing liquid substance for measurement
US-2017292911-A1 · Oct 12, 2017 · US
Method for controlling a hydraulic cylinder in a work machine and control system for a work machine
US-9670944-B2 · Jun 6, 2017 · US