Retrographic sensors with fluorescent illumination
US-2024060837-A1 · Feb 22, 2024 · US
by photoelastic stress analysis
by photoelastic stress analysis · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01L1/241 |
| Official title | {by photoelastic stress analysis} |
| Display label | by photoelastic stress analysis |
| Total patents | 177 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 13 |
| 2017 | 8 |
| 2018 | 25 |
| 2019 | 16 |
| 2020 | 13 |
| 2021 | 20 |
| 2022 | 14 |
| 2023 | 23 |
| 2024 | 12 |
| 2025 | 20 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cushioning material having sensor, and bed
US-10455951-B2 · Oct 29, 2019 · US
Optical resonance device, force measuring device and method, modulus measuring method and display panel
US-2018372565-A1 · Dec 27, 2018 · US
Prism-coupling systems and methods for characterizing curved parts
US-10156488-B2 · Dec 18, 2018 · US
Methods for in-plane strain measurement of a substrate
US-10139295-B2 · Nov 27, 2018 · US
Metamaterial device and method of making the save
US-2018329115-A1 · Nov 15, 2018 · US
Apparatus and method for smart material analysis
US-2018328722-A1 · Nov 15, 2018 · US
Optical system and methods for the determination of stress in a substrate
US-10113861-B2 · Oct 30, 2018 · US
Surface refractive index measurement method and surface stress measurement method using the same
US-2018306658-A1 · Oct 25, 2018 · US
Contact pressure measuring apparatus, method of manufacturing the same and method of measuring contact pressure
US-10088376-B2 · Oct 2, 2018 · US
Stress measurement method and system for optical materials
US-10067012-B2 · Sep 4, 2018 · US
Inspection of microelectronic devices using near-infrared light
US-10066927-B2 · Sep 4, 2018 · US
Method for analyzing stress in an object
US-10036677-B2 · Jul 31, 2018 · US
Measuring device and method for ascertaining a pressure map
US-10024741-B2 · Jul 17, 2018 · US
Stress measurement method and system for optical materials
US-2018164169-A1 · Jun 14, 2018 · US
Cement having stress-indicating properties
US-2018156677-A1 · Jun 7, 2018 · US
Witness material and method for monitoring the environmental history of an object
US-9970833-B2 · May 15, 2018 · US
Process for non-destructive testing using direct strain imaging
US-2018120096-A1 · May 3, 2018 · US
Strain sensor and recording medium
US-2018113036-A1 · Apr 26, 2018 · US
Imaging system
US-2018091239-A1 · Mar 29, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01L1/241?
- CPC G01L1/241 is the Cooperative Patent Classification code for “by photoelastic stress analysis.”
- How many patents are filed under CPC G01L1/241 (by photoelastic stress analysis)?
- Our database includes 177 publications tagged with this CPC code.
- Is patent activity under CPC G01L1/241 growing?
- Publication counts under this code: 12 in 2024 vs 20 in 2025 (latest complete years).