Ventricular assist device
US-11185680-B2 · Nov 30, 2021 · US
Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027})
Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027}) · 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 | F04D29/042 |
| Official title | Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027}) |
| Display label | Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027}) |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 16 |
| 2020 | 11 |
| 2021 | 19 |
| 2022 | 13 |
| 2023 | 9 |
| 2024 | 11 |
| 2025 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adjustable rigid spacer coupling
US-11131315-B2 · Sep 28, 2021 · US
Shaft bearing device with a lifting device
US-2021215164-A1 · Jul 15, 2021 · US
Impeller for blood pump
US-2021178147-A1 · Jun 17, 2021 · US
Shaft bearing device with a lifting device
US-10989213-B2 · Apr 27, 2021 · US
Ventricular assist device
US-2021077676-A1 · Mar 18, 2021 · US
Ventricular assist device
US-2021069395-A1 · Mar 11, 2021 · US
Axially-elongatable frame and impeller
US-2021038791-A1 · Feb 11, 2021 · US
Impeller for blood pump
US-10881770-B2 · Jan 5, 2021 · US
Turbo compressor and turbo chiller using same
US-10858951-B2 · Dec 8, 2020 · US
Bearing housing
US-2020309143-A1 · Oct 1, 2020 · US
Spring regulated variable flow electric water pump
US-10760577-B2 · Sep 1, 2020 · US
Controlling downhole-type rotating machines
US-2020208509-A1 · Jul 2, 2020 · US
Pump with integrated bypass mechanism
US-10662961-B2 · May 26, 2020 · US
Adjustable rigid spacer coupling
US-2020149539-A1 · May 14, 2020 · US
Spring biased pump stage stack for submersible well pump assembly
US-2020116152-A1 · Apr 16, 2020 · US
Reducing centrifugal pump bearing wear through dynamic magnetic coupling
US-10570904-B2 · Feb 25, 2020 · US
Gas turbine and method for protecting a gas turbine in case of a shaft break
US-10557374-B2 · Feb 11, 2020 · US
Rotary pump with axially displaceable, closeable rotor
US-10539142-B2 · Jan 21, 2020 · US
Centrifugal pump having axially moveable impeller wheel for conveying different flow paths
US-10539143-B2 · Jan 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/042?
- CPC F04D29/042 is the Cooperative Patent Classification code for “Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027}).”
- How many patents are filed under CPC F04D29/042 (Axially shiftable rotors (F04D29/041 takes precedence {; control by creating a by-pass F04D15/0027}))?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/042 growing?
- Publication counts under this code: 11 in 2024 vs 11 in 2025 (latest complete years).