Loosening detection structure and loosening detection method using said structure
US-11493074-B2 · Nov 8, 2022 · US
with a load-indicating washer or washer assembly
with a load-indicating washer or washer assembly · 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 | F16B31/028 |
| Official title | {with a load-indicating washer or washer assembly} |
| Display label | with a load-indicating washer or washer assembly |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 9 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 14 |
| 2025 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Threaded joint arrangement
US-2022316515-A1 · Oct 6, 2022 · US
Anchoring Device
US-2022282748-A1 · Sep 8, 2022 · US
Looseness Detection Device and Looseness Detection Method
US-2022244138-A1 · Aug 4, 2022 · US
Shear Sensor Collar
US-2022228932-A1 · Jul 21, 2022 · US
System for Wireless Retrieval of Measured Component Data
US-2022210526-A1 · Jun 30, 2022 · US
System for wireless retrieval of measured component data
US-11363356-B2 · Jun 14, 2022 · US
Screw release
US-2022154748-A1 · May 19, 2022 · US
System and tool for wireless retrieval of measured component data
US-11286971-B2 · Mar 29, 2022 · US
Assembly and method for measuring strain in a washer
US-2022057282-A1 · Feb 24, 2022 · US
Loosening Detection Structure and Loosening Detection Method Using Said Structure
US-2021404502-A1 · Dec 30, 2021 · US
Torque indicating threaded mechanical fastening systems and methods
US-11105363-B2 · Aug 31, 2021 · US
Mounting system with force indicator
US-2021215176-A1 · Jul 15, 2021 · US
System for Wireless Retrieval of Measured Component Data
US-2021112319-A1 · Apr 15, 2021 · US
Fluid device
US-10975728-B2 · Apr 13, 2021 · US
Load controlling bolted flange deformable spacers
US-10955022-B2 · Mar 23, 2021 · US
System for wireless retrieval of measured component data
US-10904644-B2 · Jan 26, 2021 · US
Pressure sensing device with cavity and related methods
US-2021018389-A1 · Jan 21, 2021 · US
Load controlling bolted flange deformable spacers
US-10851862-B2 · Dec 1, 2020 · US
Pressure sensing device with cavity and related methods
US-10794783-B2 · Oct 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16B31/028?
- CPC F16B31/028 is the Cooperative Patent Classification code for “with a load-indicating washer or washer assembly.”
- How many patents are filed under CPC F16B31/028 (with a load-indicating washer or washer assembly)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC F16B31/028 growing?
- Publication counts under this code: 14 in 2024 vs 11 in 2025 (latest complete years).