Optical projection device and projector
US-2017371126-A1 · Dec 28, 2017 · US
for reproducing or copying at short object distances
for reproducing or copying at short object distances · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B13/24 |
| Official title | for reproducing or copying at short object distances |
| Display label | for reproducing or copying at short object distances |
| Total patents | 230 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 27 |
| 2017 | 30 |
| 2018 | 15 |
| 2019 | 18 |
| 2020 | 26 |
| 2021 | 26 |
| 2022 | 27 |
| 2023 | 14 |
| 2024 | 15 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Objective for microscope
US-2017322404-A1 · Nov 9, 2017 · US
Imaging optical system
US-2017293119-A1 · Oct 12, 2017 · US
System, method and computer-accessible medium for authenticating physical objects using microscopic textures
US-9759902-B2 · Sep 12, 2017 · US
Objective for microscope
US-9746658-B2 · Aug 29, 2017 · US
Projection objective for a microlithographic projection exposure apparatus
US-2017227853-A1 · Aug 10, 2017 · US
Compound collimating system using apertures and collimators
US-2017220840-A1 · Aug 3, 2017 · US
Optical fingerprint sensor under a display
US-2017220844-A1 · Aug 3, 2017 · US
Lens apparatus and image pickup apparatus including the same
US-2017131620-A1 · May 11, 2017 · US
Macro lens system and imaging apparatus
US-9632289-B2 · Apr 25, 2017 · US
Imaging lens and imaging apparatus including the imaging lens
US-2017090192-A1 · Mar 30, 2017 · US
Image-forming optical system, exposure apparatus, and device producing method
US-9557548-B2 · Jan 31, 2017 · US
Lens module and portable photography device
US-9547218-B2 · Jan 17, 2017 · US
Optical apparatus, image forming apparatus, and image reading apparatus
US-9541756-B2 · Jan 10, 2017 · US
Objective optical system
US-2016370558-A1 · Dec 22, 2016 · US
Projection optical system, exposure apparatus, and exposure method
US-9500943-B2 · Nov 22, 2016 · US
Optical system and imaging apparatus including the same
US-2016313543-A1 · Oct 27, 2016 · US
Optical device for microscopic observation
US-2016313547-A1 · Oct 27, 2016 · US
System and method for acquiring images of surface texture
US-2016305871-A1 · Oct 20, 2016 · US
Optical relay with adjustable magnification
US-9459145-B1 · Oct 4, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B13/24?
- CPC G02B13/24 is the Cooperative Patent Classification code for “for reproducing or copying at short object distances.”
- How many patents are filed under CPC G02B13/24 (for reproducing or copying at short object distances)?
- Our database includes 230 publications tagged with this CPC code.
- Is patent activity under CPC G02B13/24 growing?
- Publication counts under this code: 15 in 2024 vs 11 in 2025 (latest complete years).