Locking and damping mechanism for a prosthetic knee joint
US-11497627-B2 · Nov 15, 2022 · US
of the single-bar or multi-bar linkage type
of the single-bar or multi-bar linkage type · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A61F2/644 |
| Official title | {of the single-bar or multi-bar linkage type} |
| Display label | of the single-bar or multi-bar linkage type |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 12 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Prosthetic knee joint, prosthetic knee joint power generating method, and tangible computer-readable storage medium storing program
US-2022339010-A1 · Oct 27, 2022 · US
Prosthetic knee with swing assist
US-11471306-B2 · Oct 18, 2022 · US
Orthopaedic device and energy storage device
US-2022304832-A1 · Sep 29, 2022 · US
Prosthetic leg knee joint, braking device, and load position detector
US-11413166-B2 · Aug 16, 2022 · US
Knee joint, posture calculator, method of controlling knee joint, and non-transitory computer-readable medium recording program for controlling knee joint
US-2022202597-A1 · Jun 30, 2022 · US
Modular semi-active joint exoskeleton
US-11369503-B2 · Jun 28, 2022 · US
Multi-articulated link knee joint
US-2022175557-A1 · Jun 9, 2022 · US
Prosthetic knee joint
US-11298247-B2 · Apr 12, 2022 · US
Prosthetic device
US-2022071779-A1 · Mar 10, 2022 · US
Prosthetic leg knee joint, braking device, and load position detector
US-2021401590-A1 · Dec 30, 2021 · US
Variable transmission for assistive prosthesis device
US-2021338458-A1 · Nov 4, 2021 · US
Multi-articulated link knee joint
US-2021282942-A1 · Sep 16, 2021 · US
Fastening device for fastening a prosthesis shaft to a prosthetic knee joint, and prosthetic knee joint
US-2021236308-A1 · Aug 5, 2021 · US
Multi-articulated link knee joint
US-11058558-B2 · Jul 13, 2021 · US
Multi-articulated link knee joint
US-2021205101-A1 · Jul 8, 2021 · US
Parallelogram load cell
US-10959862-B2 · Mar 30, 2021 · US
Prosthetic knee with swing assist
US-2021059841-A1 · Mar 4, 2021 · US
Dynamic linear adjustable prosthetic
US-10898350-B2 · Jan 26, 2021 · US
Multi-articulated link knee joint
US-10893958-B2 · Jan 19, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A61F2/644?
- CPC A61F2/644 is the Cooperative Patent Classification code for “of the single-bar or multi-bar linkage type.”
- How many patents are filed under CPC A61F2/644 (of the single-bar or multi-bar linkage type)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC A61F2/644 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).