Roots pump
US-12188474-B2 · Jan 7, 2025 · US
Fixing rotors on shafts, e.g. by clamping together hub and shaft
Fixing rotors on shafts, e.g. by clamping together hub and shaft · 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 | F04C15/0076 |
| Official title | {Fixing rotors on shafts, e.g. by clamping together hub and shaft} |
| Display label | Fixing rotors on shafts, e.g. by clamping together hub and shaft |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Roots pump
US-2024287986-A1 · Aug 29, 2024 · US
Gear Pump
US-2024254988-A1 · Aug 1, 2024 · US
Fluid pump with thrust bearing driver
US-12018680-B2 · Jun 25, 2024 · US
Fluid pump with thrust bearing driver
US-2023323874-A1 · Oct 12, 2023 · US
Compressor having oil guide path
US-11434888-B2 · Sep 6, 2022 · US
Sealed drive for connecting progressive cavity pump rotors to universal joints
US-11371502-B2 · Jun 28, 2022 · US
Liquid pump, in particular for a component of a drive train of a motor vehicle
US-2022163035-A1 · May 26, 2022 · US
Progressive cavity pump universal joint
US-2021348608-A1 · Nov 11, 2021 · US
Sealed drive for connecting progressive cavity pump rotors to universal joints
US-2021148358-A1 · May 20, 2021 · US
Gear pump and gear assembly
US-10982670-B2 · Apr 20, 2021 · US
Lubrication strategy for dry run pump system
US-10895257-B2 · Jan 19, 2021 · US
Vane oil pump with different back pressure supplied to vanes
US-10724373-B2 · Jul 28, 2020 · US
Gear pump and gear assembly
US-2020232458-A1 · Jul 23, 2020 · US
Device for power transmission and signal transfer between stator and rotor of screw drilling tool
US-10619478-B2 · Apr 14, 2020 · US
Compressor
US-2020088180-A1 · Mar 19, 2020 · US
Pump-motor combination having a single common rotor shaft
US-10563654-B2 · Feb 18, 2020 · US
Device for Power Transmission and Signal Transfer Between Stator and Rotor of Screw Drilling Tool
US-2020003049-A1 · Jan 2, 2020 · US
Rotary actuator
US-10400602-B2 · Sep 3, 2019 · US
Fuel pump
US-10393077-B2 · Aug 27, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C15/0076?
- CPC F04C15/0076 is the Cooperative Patent Classification code for “Fixing rotors on shafts, e.g. by clamping together hub and shaft.”
- How many patents are filed under CPC F04C15/0076 (Fixing rotors on shafts, e.g. by clamping together hub and shaft)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC F04C15/0076 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).