Control method of an automatic inside-diameter measuring apparatus and an automatic measuring apparatus
US-12590794-B2 · Mar 31, 2026 · US
Internal diameters
Internal diameters · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01B7/13 |
| Official title | Internal diameters |
| Display label | Internal diameters |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inner diameter measuring apparatus and system thereof
US-2025297843-A1 · Sep 25, 2025 · US
Flexible gauge cell
US-11879727-B2 · Jan 23, 2024 · US
Apparatus and method for determining borehole size with a borehole imaging tool
US-11815352-B2 · Nov 14, 2023 · US
Method and system for measuring geometric parameters of through holes
US-11774233-B2 · Oct 3, 2023 · US
Control method of an automatic inside-diameter measuring apparatus and an automatic measuring apparatus
US-2023304785-A1 · Sep 28, 2023 · US
Multi-finger caliper
US-11661840-B2 · May 30, 2023 · US
Electromagnetic pipe inspection in non-nested completions
US-11520072-B2 · Dec 6, 2022 · US
Flexible gauge cell
US-2022057188-A1 · Feb 24, 2022 · US
Apparatus and method for determining borehole size with a borehole imaging tool
US-2021239448-A1 · Aug 5, 2021 · US
Electromagnetic Pipe Inspection In Non-Nested Completions
US-2021239874-A1 · Aug 5, 2021 · US
Caliper tool and sensor for use in high pressure environments
US-11079211-B2 · Aug 3, 2021 · US
Multi-Finger Caliper
US-2021180444-A1 · Jun 17, 2021 · US
Plug gauge and associated system and method for taking multiple simultaneous diametric measurements
US-10982976-B2 · Apr 20, 2021 · US
Method and system for measuring geometric parameters of through holes
US-2020393233-A1 · Dec 17, 2020 · US
Method and system for measuring geometric parameters of through holes
US-10794679-B2 · Oct 6, 2020 · US
Plug gauge and associated system and method for taking multiple simultaneous diametric measurements
US-2020271481-A1 · Aug 27, 2020 · US
Aperture measuring device and an aperture measuring method
US-10627207-B2 · Apr 21, 2020 · US
Caliper Tool and Sensor for Use in High Pressure Environments
US-2020049481-A1 · Feb 13, 2020 · US
Multistage processing and inversion of corrosion detection tools
US-10502044-B2 · Dec 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01B7/13?
- CPC G01B7/13 is the Cooperative Patent Classification code for “Internal diameters.”
- How many patents are filed under CPC G01B7/13 (Internal diameters)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC G01B7/13 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).