Methods and systems for measuring the texture of carpet
US-2025341476-A1 · Nov 6, 2025 · US
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Periodic flaws
Periodic flaws · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N21/8922 |
| Official title | {Periodic flaws} |
| Display label | Periodic flaws |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 3 |
| 2023 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems for measuring the texture of carpet
US-12345656-B2 · Jul 1, 2025 · US
Method for defect detection for rolling elements
US-12276617-B2 · Apr 15, 2025 · US
Learned model generation method, learned model, surface defect inspection method, steel manufacturing method, pass/fail determination method, grade determination method, surface defect determination program, pass/fail determination program, determination system, and steel manufacturing equipment
US-12266094-B2 · Apr 1, 2025 · US
Method for defect detection for rolling elements
US-2023408421-A1 · Dec 21, 2023 · US
Methods and systems for measuring the texture of carpet
US-2023324310-A1 · Oct 12, 2023 · US
Methods and systems for measuring the texture of carpet
US-11719647-B2 · Aug 8, 2023 · US
Methods And Systems For Measuring The Texture Of Carpet
US-2022155239-A1 · May 19, 2022 · US
Methods and systems for measuring the texture of carpet
US-11262317-B2 · Mar 1, 2022 · US
Learned model generation method, learned model, surface defect inspection method, steel manufacturing method, pass/fail determination method, grade determination method, surface defect determination program, pass/fail determination program, determination system, and steel manufacturing equipment
US-2022044383-A1 · Feb 10, 2022 · US
Methods and systems for measuring the texture of carpet
US-2020371045-A1 · Nov 26, 2020 · US
Inspection object imaging apparatus, inspection object imaging method, surface inspection apparatus, and surface inspection method
US-10281408-B2 · May 7, 2019 · US
Inspection object imaging apparatus, inspection object imaging method, surface inspection apparatus, and surface inspection method
US-2018202941-A1 · Jul 19, 2018 · US
Apparatus for detecting periodic defect and method therefor
US-9008975-B2 · Apr 14, 2015 · US
Application-specific repeat defect detection in web manufacturing processes
US-8935104-B2 · Jan 13, 2015 · US