Defect detection systems and methods
US-2019072500-A1 · Mar 7, 2019 · US
Investigating the presence of flaws
Investigating the presence of 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 | G01N22/02 |
| Official title | Investigating the presence of flaws |
| Display label | Investigating the presence of flaws |
| Total patents | 237 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 10 |
| 2017 | 10 |
| 2018 | 25 |
| 2019 | 16 |
| 2020 | 35 |
| 2021 | 27 |
| 2022 | 27 |
| 2023 | 28 |
| 2024 | 22 |
| 2025 | 19 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wafer inspection apparatus
US-2018364181-A1 · Dec 20, 2018 · US
Workpiece evaluating method
US-10157802-B2 · Dec 18, 2018 · US
Microwave Horn Antennas-Based Transducer System for CUI Inspection Without Removing the Insulation
US-2018356333-A1 · Dec 13, 2018 · US
Machine and method for making absorbent sanitary articles
US-2018303679-A1 · Oct 25, 2018 · US
Imaging method and imaging apparatus
US-2018308259-A1 · Oct 25, 2018 · US
System devise and methods for measuring substances' dielectric properties using microwave sensors
US-2018299394-A1 · Oct 18, 2018 · US
Composite laminate enabling structural monitoring using electromagnetic radiation
US-10099465-B2 · Oct 16, 2018 · US
Scattering tomography method and scattering tomography device
US-10101282-B2 · Oct 16, 2018 · US
Flexible elements for probes and guard rings
US-10082492-B2 · Sep 25, 2018 · US
Audio-based 3d point cloud generation and analysis
US-2018218537-A1 · Aug 2, 2018 · US
Method for detecting the degree of aging of catalytic converters
US-10036298-B2 · Jul 31, 2018 · US
Estimating a condition of a physical structure
US-10013708-B1 · Jul 3, 2018 · US
Methods and systems for capturing the condition of a physical structure via chemical detection
US-2018180543-A1 · Jun 28, 2018 · US
Tethered 3d scanner
US-2018182087-A1 · Jun 28, 2018 · US
System and method for real time remote measurement of geometric parameters of a pipeline in the launch step, through sound waves
US-2018172546-A1 · Jun 21, 2018 · US
Audio-based 3D point cloud generation and analysis
US-9996970-B2 · Jun 12, 2018 · US
System device and method for testing an object
US-9964505-B2 · May 8, 2018 · US
Method and system for non-destructive testing using an unmanned aerial vehicle
US-2018120196-A1 · May 3, 2018 · US
Nondestructive inspection method for coatings and ceramic matrix composites
US-2018120246-A1 · May 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N22/02?
- CPC G01N22/02 is the Cooperative Patent Classification code for “Investigating the presence of flaws.”
- How many patents are filed under CPC G01N22/02 (Investigating the presence of flaws)?
- Our database includes 237 publications tagged with this CPC code.
- Is patent activity under CPC G01N22/02 growing?
- Publication counts under this code: 22 in 2024 vs 19 in 2025 (latest complete years).