Geo-fiducials for uav navigation
US-2020301445-A1 · Sep 24, 2020 · US
Visual or acoustic landing aids
Visual or acoustic landing aids · 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 | B64F1/18 |
| Official title | Visual or acoustic landing aids |
| Display label | Visual or acoustic landing aids |
| Total patents | 181 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 17 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 7 |
| 2021 | 30 |
| 2022 | 20 |
| 2023 | 19 |
| 2024 | 22 |
| 2025 | 19 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aircraft derived spread spectrum landing system
US-10782706-B2 · Sep 22, 2020 · US
Thermal image based precision drone landing systems and methods
US-2020202727-A1 · Jun 25, 2020 · US
Home station for unmanned aerial vehicle
US-10683102-B2 · Jun 16, 2020 · US
Airfield runway lamp controller
US-10638574-B2 · Apr 28, 2020 · US
Monitor, light control system, and light fixture control method
US-10612759-B2 · Apr 7, 2020 · US
Image processing system
US-10516815-B2 · Dec 24, 2019 · US
Sensor-based detection of landing zones
US-10472086-B2 · Nov 12, 2019 · US
Systems and methods for uav battery exchange
US-2019337407-A1 · Nov 7, 2019 · US
Monitor, Light Control System, and Light Fixture Control Method
US-2019264901-A1 · Aug 29, 2019 · US
Airfield runway lamp controller
US-2019261499-A1 · Aug 22, 2019 · US
Home Station for Unmanned Aerial Vehicle
US-2019248509-A1 · Aug 15, 2019 · US
Aircraft derived spread spectrum landing system
US-2019235525-A1 · Aug 1, 2019 · US
Systems and methods for UAV battery exchange
US-10363826-B2 · Jul 30, 2019 · US
Airfield runway lamp controller
US-10334711-B2 · Jun 25, 2019 · US
Method, device and system for guiding unmanned aerial vehicle to land
US-2019168889-A1 · Jun 6, 2019 · US
System For Aiding The Landing Of An Aircraft In A Landing Runway Approach Phase
US-2019130772-A1 · May 2, 2019 · US
Home station for unmanned aerial vehicle
US-10239638-B1 · Mar 26, 2019 · US
Flight navigation using lenticular array
US-10157545-B1 · Dec 18, 2018 · US
Systems and methods for uav battery exchange
US-2018178663-A9 · Jun 28, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64F1/18?
- CPC B64F1/18 is the Cooperative Patent Classification code for “Visual or acoustic landing aids.”
- How many patents are filed under CPC B64F1/18 (Visual or acoustic landing aids)?
- Our database includes 181 publications tagged with this CPC code.
- Is patent activity under CPC B64F1/18 growing?
- Publication counts under this code: 22 in 2024 vs 19 in 2025 (latest complete years).