Bi-planer rotor blade
US-10875639-B2 · Dec 29, 2020 · US
Blade tips
Blade tips · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64C27/463 |
| Official title | {Blade tips} |
| Display label | Blade tips |
| Total patents | 146 |
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 | 2 |
| 2016 | 10 |
| 2017 | 12 |
| 2018 | 14 |
| 2019 | 16 |
| 2020 | 22 |
| 2021 | 25 |
| 2022 | 15 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dual rotor, rotary wing aircraft
US-10822076-B2 · Nov 3, 2020 · US
Geometrically reconfigurable propellers
US-10822077-B1 · Nov 3, 2020 · US
Rotor units having asymmetric rotor blades
US-10604245-B2 · Mar 31, 2020 · US
Rotor blade for aircraft
US-2020039640-A1 · Feb 6, 2020 · US
Multi-objective control system with control allocation
US-10526077-B2 · Jan 7, 2020 · US
Rotor blade
US-2019389128-A1 · Dec 26, 2019 · US
Lifting surfaces and associated method
US-2019322354-A1 · Oct 24, 2019 · US
Self-calibrating sensor for simultaneous measurement of rub depth and running clearance in a jet engine
US-2019323818-A1 · Oct 24, 2019 · US
Aircraft rotor blade of shape adapted for acoustic improvement during an approach flight and for improving performance in forward flight
US-10414490-B2 · Sep 17, 2019 · US
Propeller blade indentations for improved aerodynamic performance and sound control
US-10399665-B2 · Sep 3, 2019 · US
Metallic dimpled doubler
US-10351229-B2 · Jul 16, 2019 · US
Lifting surfaces and associated method
US-10343763-B2 · Jul 9, 2019 · US
Rotor for a hover-capable aircraft and related method of control
US-2019193850-A1 · Jun 27, 2019 · US
Redundant Aircraft Propulsion System Using Co-rotating Propellers Joined By Tip Connectors
US-2019161168-A1 · May 30, 2019 · US
Spar end cap with drain hole provisions
US-10293930-B2 · May 21, 2019 · US
Noise reduction device, flight vehicle, power generation device, and noise reduction method
US-2019088244-A1 · Mar 21, 2019 · US
Redundant aircraft propulsion system using co-rotating propellers joined by tip connectors
US-10232933-B2 · Mar 19, 2019 · US
Aircraft rotor blade of shape adapted for acoustic improvement during approach flights and for improving performance in hovering flight and in forward flight
US-10220943-B2 · Mar 5, 2019 · US
Method of fabricating a rotor blade filler body, and a rotor blade filler body comprising at least one cellular assembly having closed cells
US-2019031329-A1 · Jan 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C27/463?
- CPC B64C27/463 is the Cooperative Patent Classification code for “Blade tips.”
- How many patents are filed under CPC B64C27/463 (Blade tips)?
- Our database includes 146 publications tagged with this CPC code.
- Is patent activity under CPC B64C27/463 growing?
- Publication counts under this code: 10 in 2024 vs 9 in 2025 (latest complete years).