Single Point Contact Triaxial Sensor Head For ILI
US-2020378923-A1 · Dec 3, 2020 · US
by investigating stray magnetic fields
by investigating stray magnetic fields · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N27/83 |
| Official title | by investigating stray magnetic fields |
| Display label | by investigating stray magnetic fields |
| Total patents | 178 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 6 |
| 2017 | 9 |
| 2018 | 18 |
| 2019 | 15 |
| 2020 | 23 |
| 2021 | 25 |
| 2022 | 20 |
| 2023 | 26 |
| 2024 | 13 |
| 2025 | 16 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for Determining the Geometry of a Defect and for Determining a Load Limit
US-2020340948-A1 · Oct 29, 2020 · US
Method and device for identifying defect opening profile
US-10788454-B2 · Sep 29, 2020 · US
Multi-zone automatic magnetoscop inspection system
US-2020300731-A1 · Sep 24, 2020 · US
Wire rope flaw detector and adjustment method therefor
US-10724992-B2 · Jul 28, 2020 · US
Chemical Sensing Using Magnetic Complexes
US-2020142091-A1 · May 7, 2020 · US
Wire rope flaw detection device and adjustment jig
US-10539533-B2 · Jan 21, 2020 · US
Wire rope flaw detection device
US-10514362-B2 · Dec 24, 2019 · US
Magnetic Body Inspection Apparatus and Magnetic Body Inspection Method
US-2019360965-A1 · Nov 28, 2019 · US
Weld scanner for real-life bridge and scanning method thereof
US-2019331610-A1 · Oct 31, 2019 · US
Thinning detection system and thinning detection method
US-10458947-B2 · Oct 29, 2019 · US
Monitoring pipe conditions
US-10444188-B2 · Oct 15, 2019 · US
High-precision imaging and detecting device for detecting small defect of pipeline by helical magnetic matrix
US-10338160-B2 · Jul 2, 2019 · US
Current sensor
US-2019187187-A1 · Jun 20, 2019 · US
Defect inspection device and defect inspection method
US-10317368-B2 · Jun 11, 2019 · US
Methods and systems for nondestructive material inspection
US-2019145931-A1 · May 16, 2019 · US
Wire rope flaw detector and adjustment method therefor
US-2019079053-A1 · Mar 14, 2019 · US
System and Method for Characterizing Ferromagnetic Material
US-2019064115-A1 · Feb 28, 2019 · US
Tracking and estimating tubing fatigue in cycles to failure considering non-destructive evaluation of tubing defects
US-2019064116-A1 · Feb 28, 2019 · US
Method and device for identifying defect opening profile
US-2019049409-A1 · Feb 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N27/83?
- CPC G01N27/83 is the Cooperative Patent Classification code for “by investigating stray magnetic fields.”
- How many patents are filed under CPC G01N27/83 (by investigating stray magnetic fields)?
- Our database includes 178 publications tagged with this CPC code.
- Is patent activity under CPC G01N27/83 growing?
- Publication counts under this code: 13 in 2024 vs 16 in 2025 (latest complete years).