Systems and methods for a hose reel
US-12545426-B2 · Feb 10, 2026 · US
Means for paying-in or out hose
Means for paying-in or out hose · 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 | B64D39/02 |
| Official title | Means for paying-in or out hose |
| Display label | Means for paying-in or out hose |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Autonomous maneuver generation to mate connectors
US-2026017942-A1 · Jan 15, 2026 · US
Real-time error monitor of receiver aircraft based on machine learning keypoint solutions for automated aerial refueling
US-2025326496-A1 · Oct 23, 2025 · US
Autonomous maneuver generation to mate connectors
US-12449810-B2 · Oct 21, 2025 · US
Boom guidance system for automated air-to-air refueling
US-2025319987-A1 · Oct 16, 2025 · US
Systems and Methods for a Hose Reel
US-2025042569-A1 · Feb 6, 2025 · US
Power supply system, floating body, estimation method, and estimation program
US-2024351713-A1 · Oct 24, 2024 · US
Pose estimation refinement for aerial refueling
US-12106516-B2 · Oct 1, 2024 · US
System and method for refueling air vehicles
US-11919655-B2 · Mar 5, 2024 · US
Pose estimation refinement for aerial refueling
US-2023215041-A1 · Jul 6, 2023 · US
Systems and methods for aerial aircraft resupply
US-11691753-B2 · Jul 4, 2023 · US
Robotic systems and methods for vehicle fueling and charging
US-11648843-B2 · May 16, 2023 · US
Touchscreen boom pod
US-11599323-B2 · Mar 7, 2023 · US
Autonomous maneuver generation to mate connectors
US-2022276652-A1 · Sep 1, 2022 · US
Assisted boom actuator
US-11427345-B2 · Aug 30, 2022 · US
Feature detection for automated air-to-air refueling (a3r)
US-2022258875-A1 · Aug 18, 2022 · US
Touchscreen Boom Pod
US-2022100454-A1 · Mar 31, 2022 · US
En route fluid transmitting apparatus
US-11273926-B2 · Mar 15, 2022 · US
Flying boom mast for multi-purpose aerial refueling aircraft
US-11148825-B2 · Oct 19, 2021 · US
Assisted boom actuator
US-2021300583-A1 · Sep 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64D39/02?
- CPC B64D39/02 is the Cooperative Patent Classification code for “Means for paying-in or out hose.”
- How many patents are filed under CPC B64D39/02 (Means for paying-in or out hose)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC B64D39/02 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).