Crankshaft simulation device, detection equipment and method
US-12152959-B2 · Nov 26, 2024 · US
Mechanical Engineering
Mechanical Engineering · 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 | F04C18/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 377 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 54 |
| 2016 | 38 |
| 2017 | 32 |
| 2018 | 37 |
| 2019 | 51 |
| 2020 | 34 |
| 2021 | 38 |
| 2022 | 23 |
| 2023 | 21 |
| 2024 | 25 |
| 2025 | 22 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Kinetic energy recovery system
US-2016369783-A1 · Dec 22, 2016 · US
Scroll compressor
US-RE46106-E · Aug 16, 2016 · US
Compressor assembly with liquid sensor
US-9341187-B2 · May 17, 2016 · US
Compressor having capacity modulation assembly
US-9303642-B2 · Apr 5, 2016 · US
Switchable single-start or multi-start scroll pump
US-9297381-B2 · Mar 29, 2016 · US
Controls and operation of variable frequency drives
US-2015377536-A1 · Dec 31, 2015 · US
Synthetic resin bearing and scroll compressor having the same
US-9217433-B2 · Dec 22, 2015 · US
Refrigeration compressor that maintains a satisfactory oil level
US-9217589-B2 · Dec 22, 2015 · US
Compressor having a lower frame and a method of manufacturing the same
US-2015354568-A1 · Dec 10, 2015 · US
Compressor for vehicle with reduced vibrations
US-9206804-B2 · Dec 8, 2015 · US
Scroll compressor
US-2015330390-A1 · Nov 19, 2015 · US
Scroll-Type Fluid Machine
US-2015322947-A1 · Nov 12, 2015 · US
Motor-driven compressor
US-9181950-B2 · Nov 10, 2015 · US
Scroll compressor
US-9181951-B2 · Nov 10, 2015 · US
Scroll compressor with bypass hole
US-9157438-B2 · Oct 13, 2015 · US
Bush bearing and a scroll compressor including a bush bearing
US-2015285302-A1 · Oct 8, 2015 · US
Permanent magnet motor
US-2015288234-A1 · Oct 8, 2015 · US
Scroll compressor
US-9145889-B2 · Sep 29, 2015 · US
Scroll compressor with stepped spiral wraps
US-9145770-B2 · Sep 29, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C18/02?
- CPC F04C18/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04C18/02 (Mechanical Engineering)?
- Our database includes 377 publications tagged with this CPC code.
- Is patent activity under CPC F04C18/02 growing?
- Publication counts under this code: 25 in 2024 vs 22 in 2025 (latest complete years).