An Optical Device and Associated Systems
US-2019377267-A1 · Dec 12, 2019 · US
Fiducial marks and measuring scales within the optical system
Fiducial marks and measuring scales within the optical system · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B27/32 |
| Official title | Fiducial marks and measuring scales within the optical system |
| Display label | Fiducial marks and measuring scales within the optical system |
| Total patents | 230 |
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 | 4 |
| 2016 | 10 |
| 2017 | 19 |
| 2018 | 17 |
| 2019 | 19 |
| 2020 | 32 |
| 2021 | 38 |
| 2022 | 30 |
| 2023 | 22 |
| 2024 | 23 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
NTE display systems and methods with optical trackers
US-10466774-B2 · Nov 5, 2019 · US
Reticle for optical sighting devices
US-10451888-B2 · Oct 22, 2019 · US
Multifocal method and apparatus for stabilization of optical systems
US-10429628-B2 · Oct 1, 2019 · US
Image display system, image display device and method of controlling image display system
US-2019265942-A1 · Aug 29, 2019 · US
Passively aligned single element telescope for improved package brightness
US-2019212497-A1 · Jul 11, 2019 · US
Selecting feature patterns and corresponding layout positions for viewpoint measurement
US-10304206-B2 · May 28, 2019 · US
Passively aligned single element telescope for improved package brightness
US-10261261-B2 · Apr 16, 2019 · US
Curved pattern marker and optical tracking device including marker
US-2019101719-A1 · Apr 4, 2019 · US
Mitigation of Inaccuracies Related to Grating Asymmetries in Scatterometry Measurements
US-2019033726-A1 · Jan 31, 2019 · US
Marker
US-2018364459-A1 · Dec 20, 2018 · US
Exit pupil locator tool
US-10143372-B1 · Dec 4, 2018 · US
Optical fiducial generation for galvanometric scanner calibration
US-2018281067-A1 · Oct 4, 2018 · US
Camera calibration board, camera calibration device, camera calibration method, and program-recording medium for camera calibration
US-2018262748-A1 · Sep 13, 2018 · US
Manufacturing method of imaging module
US-10048462-B2 · Aug 14, 2018 · US
Submicron wafer alignment
US-10048473-B2 · Aug 14, 2018 · US
Grid-based measuring and aiming reticle for optical sight
US-10042177-B1 · Aug 7, 2018 · US
Stacked lens structure, method of manufacturing the same, and electronic apparatus
US-2018203164-A1 · Jul 19, 2018 · US
Mask assembly, color filter substrate and method of manufacturing the same
US-10001589-B2 · Jun 19, 2018 · US
Multifocal method and apparatus for stabilization of optical systems
US-2018149855-A1 · May 31, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B27/32?
- CPC G02B27/32 is the Cooperative Patent Classification code for “Fiducial marks and measuring scales within the optical system.”
- How many patents are filed under CPC G02B27/32 (Fiducial marks and measuring scales within the optical system)?
- Our database includes 230 publications tagged with this CPC code.
- Is patent activity under CPC G02B27/32 growing?
- Publication counts under this code: 23 in 2024 vs 12 in 2025 (latest complete years).