System and method for protection against vortex ring state
US-12509222-B2 · Dec 30, 2025 · US
Control of rate of change of altitude or depth
Control of rate of change of altitude or depth · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05D1/485 |
| Official title | Control of rate of change of altitude or depth |
| Display label | Control of rate of change of altitude or depth |
| Total patents | 72 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 9 |
| 2024 | 15 |
| 2025 | 21 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inspecting a pipeline with an unmanned aerial vehicle
US-12498287-B2 · Dec 16, 2025 · US
Aircraft with Pusher Propeller
US-2025361006-A1 · Nov 27, 2025 · US
Systems and methods for aircraft engine thermal optimization
US-2025319979-A1 · Oct 16, 2025 · US
Systems and methods for aircraft energy optimization
US-2025296692-A1 · Sep 25, 2025 · US
Computer-implemented methods of enabling optimisation of trajectory for a vehicle
US-12424107-B2 · Sep 23, 2025 · US
Landing a vertical landing vehicle
US-12416929-B2 · Sep 16, 2025 · US
Method and system for assisting with the restart of at least one aircraft engine
US-2025242935-A1 · Jul 31, 2025 · US
Systems and methods for propeller thrust protection
US-2025223032-A1 · Jul 10, 2025 · US
Device and method for managing energy for descent and approach phases of an aircraft
US-2025201132-A1 · Jun 19, 2025 · US
Distributed flight control system
US-2025147513-A1 · May 8, 2025 · US
Collective control using vertical velocity
US-2025145282-A1 · May 8, 2025 · US
Semantic abort of unmanned aerial vehicle deliveries
US-12283099-B2 · Apr 22, 2025 · US
Dual agent reinforcement learning based system for autonomous operation of aircraft
US-12282337-B2 · Apr 22, 2025 · US
Inspecting a pipeline with an unmanned aerial vehicle
US-2025076145-A1 · Mar 6, 2025 · US
Autonomous ascent of an underwater vehicle
US-2025066001-A1 · Feb 27, 2025 · US
Distributed flight control system
US-12228946-B2 · Feb 18, 2025 · US
System and Methods for Operating an Aircraft During a Climb Phase of Flight
US-2024427349-A1 · Dec 26, 2024 · US
Method of operating a rotorcraft in a single engine operation mode
US-2024391600-A1 · Nov 28, 2024 · US
Aircraft and methods of operating the same to increase descent angles thereof
US-12151808-B2 · Nov 26, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G05D1/485?
- CPC G05D1/485 is the Cooperative Patent Classification code for “Control of rate of change of altitude or depth.”
- How many patents are filed under CPC G05D1/485 (Control of rate of change of altitude or depth)?
- Our database includes 72 publications tagged with this CPC code.
- Is patent activity under CPC G05D1/485 growing?
- Publication counts under this code: 15 in 2024 vs 21 in 2025 (latest complete years).