Vision based analysis for the measurement and condition monitoring of aircraft brake wear pin assemblies
US-2026021885-A1 · Jan 22, 2026 · US
indicating that a lining is worn to minimum allowable thickness
indicating that a lining is worn to minimum allowable thickness · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16D66/022 |
| Official title | {indicating that a lining is worn to minimum allowable thickness} |
| Display label | indicating that a lining is worn to minimum allowable thickness |
| Total patents | 52 |
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 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 9 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 9 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and Method For Estimating Wear of a Brake Pad
US-2025383001-A1 · Dec 18, 2025 · US
Hybrid brake systems and methods
US-12486050-B2 · Dec 2, 2025 · US
System for controlling multi-point synchronous braking of monorail hoist and utilization method thereof
US-12172683-B2 · Dec 24, 2024 · US
System for controlling multi-point synchronous braking of monorail hoist and utilization method thereof
US-2024391509-A1 · Nov 28, 2024 · US
Brake pad state estimation device and brake pad state estimation method
US-11906008-B2 · Feb 20, 2024 · US
Method and device for determining the wear of a brake
US-2024052902-A1 · Feb 15, 2024 · US
Brake wear sensing apparatus and system
US-11801821-B2 · Oct 31, 2023 · US
Brake system and method for controlling the same
US-2023265900-A1 · Aug 24, 2023 · US
Hybrid brake systems and methods
US-2023249846-A1 · Aug 10, 2023 · US
Brake characteristics
US-11623621-B2 · Apr 11, 2023 · US
Elevator car parking brake
US-11618647-B2 · Apr 4, 2023 · US
Wear liner manufacturing systems and methods
US-11614136-B2 · Mar 28, 2023 · US
Yaw braking assembly of a wind turbine
US-11592003-B2 · Feb 28, 2023 · US
Brake device and brake control system
US-11590954-B2 · Feb 28, 2023 · US
Electromagnetically actuable brake device
US-11549562-B2 · Jan 10, 2023 · US
Brake device, a test method for the brake device and an elevator system
US-11505426-B2 · Nov 22, 2022 · US
Selective friction brake allocation during taxi
US-11400900-B2 · Aug 2, 2022 · US
Brake wear sensing apparatus and system
US-2022161776-A1 · May 26, 2022 · US
Brake pad state estimation device and brake pad state estimation method
US-2022018413-A1 · Jan 20, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16D66/022?
- CPC F16D66/022 is the Cooperative Patent Classification code for “indicating that a lining is worn to minimum allowable thickness.”
- How many patents are filed under CPC F16D66/022 (indicating that a lining is worn to minimum allowable thickness)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC F16D66/022 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).