Transfer bearing collapsing device
US-11161598-B2 · Nov 2, 2021 · US
automatic
automatic · 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 | B64C11/40 |
| Official title | automatic |
| Display label | automatic |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 26 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 14 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling a hybrid helicopter in the event of an engine failure
US-2021253262-A1 · Aug 19, 2021 · US
Propeller oil control system for aircraft turboprop engines
US-11066150-B2 · Jul 20, 2021 · US
Method of controlling a propeller with two-position solenoid
US-11059567-B2 · Jul 13, 2021 · US
System and method for feathering an aircraft propeller
US-10899433-B2 · Jan 26, 2021 · US
System and method for feathering an aircraft propeller
US-10864980-B2 · Dec 15, 2020 · US
Propeller pitch control system for aircraft turboprop engines
US-10850831-B2 · Dec 1, 2020 · US
Method of controlling a propeller with two-position solenoid
US-2020369370-A1 · Nov 26, 2020 · US
Metering of oil flow to engine propeller
US-10830391-B2 · Nov 10, 2020 · US
Aircraft turboprop engine propeller pitch control system including a controllable feather valve
US-10807701-B2 · Oct 20, 2020 · US
System and method for propeller pitch control
US-10800512-B2 · Oct 13, 2020 · US
Propeller blade angle control system
US-10793256-B2 · Oct 6, 2020 · US
Combined overspeed, feathering, and reverse enabler control valve for a propeller assembly
US-2020298959-A1 · Sep 24, 2020 · US
Single lever turboprop control systems and methods utilizing torque-based and power-based scheduling
US-10773816-B2 · Sep 15, 2020 · US
Propeller Speed Overshoot Preventing Logic
US-2020283124-A1 · Sep 10, 2020 · US
System and method for aircraft propeller governing
US-2020262542-A1 · Aug 20, 2020 · US
Aircraft turboprop engine propeller pitch control system including a controllable feather valve
US-2020255123-A1 · Aug 13, 2020 · US
Hydraulic actuation system
US-10717517-B2 · Jul 21, 2020 · US
Propeller oil control system for aircraft turboprop engines
US-2020198765-A1 · Jun 25, 2020 · US
Propeller pitch control system for aircraft turboprop engines
US-2020198764-A1 · Jun 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C11/40?
- CPC B64C11/40 is the Cooperative Patent Classification code for “automatic.”
- How many patents are filed under CPC B64C11/40 (automatic)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC B64C11/40 growing?
- Publication counts under this code: 14 in 2024 vs 10 in 2025 (latest complete years).