Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327221-A1 · Nov 16, 2017 · US
Releasing
Releasing · 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 | B64D1/12 |
| Official title | Releasing |
| Display label | Releasing |
| Total patents | 509 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 18 |
| 2017 | 63 |
| 2018 | 36 |
| 2019 | 51 |
| 2020 | 64 |
| 2021 | 51 |
| 2022 | 54 |
| 2023 | 62 |
| 2024 | 50 |
| 2025 | 37 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327213-A1 · Nov 16, 2017 · US
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327211-A1 · Nov 16, 2017 · US
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327214-A1 · Nov 16, 2017 · US
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327228-A1 · Nov 16, 2017 · US
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327212-A1 · Nov 16, 2017 · US
Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft
US-2017327229-A1 · Nov 16, 2017 · US
Apparatus and method for providing aerial animal food delivery
US-2017280678-A1 · Oct 5, 2017 · US
Systems and methods for leak detection and sealing
US-2017276284-A1 · Sep 28, 2017 · US
Hovering aerial vehicle and method of flying same
US-2017267345-A1 · Sep 21, 2017 · US
Helicopter-mediated system and method for launching and retrieving an aircraft
US-2017253350-A1 · Sep 7, 2017 · US
Multiple delivery sling-load system and method
US-9751628-B2 · Sep 5, 2017 · US
Compliant Aft Pivot Assemblies and Systems
US-2017240282-A1 · Aug 24, 2017 · US
Modular testable release mechanism
US-9731822-B1 · Aug 15, 2017 · US
Hatch for closing an opening provided through an aircraft structure, related structure and method
US-2017203828-A1 · Jul 20, 2017 · US
Tether compensated airborne delivery
US-9676481-B1 · Jun 13, 2017 · US
Method, apparatus, and kit for assembling a mobile platform
US-2017158331-A1 · Jun 8, 2017 · US
Mobile base utilizing transportation units for receiving items
US-9656805-B1 · May 23, 2017 · US
Interaction during delivery from aerial vehicle
US-9630715-B2 · Apr 25, 2017 · US
Aerial vehicle delivery of items available through an e-commerce shopping site
US-2017110017-A1 · Apr 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64D1/12?
- CPC B64D1/12 is the Cooperative Patent Classification code for “Releasing.”
- How many patents are filed under CPC B64D1/12 (Releasing)?
- Our database includes 509 publications tagged with this CPC code.
- Is patent activity under CPC B64D1/12 growing?
- Publication counts under this code: 50 in 2024 vs 37 in 2025 (latest complete years).