Zoned optical waveplate
US-2017307785-A1 · Oct 26, 2017 · US
Transmissive phase gratings
Transmissive phase gratings · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B5/1871 |
| Official title | {Transmissive phase gratings} |
| Display label | Transmissive phase gratings |
| Total patents | 366 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 24 |
| 2017 | 24 |
| 2018 | 30 |
| 2019 | 49 |
| 2020 | 56 |
| 2021 | 37 |
| 2022 | 42 |
| 2023 | 29 |
| 2024 | 35 |
| 2025 | 20 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and Methods for Improving Resolution in Lensless Imaging
US-2017300011-A1 · Oct 19, 2017 · US
Diffraction gratings producing curtains of minimum intensity separated by foci and extending to a focal plane
US-9772432-B2 · Sep 26, 2017 · US
Light modulating device
US-9772484-B2 · Sep 26, 2017 · US
Optical system for beam shaping
US-2017259375-A1 · Sep 14, 2017 · US
System for asymmetric optical beam shaping
US-2017252859-A1 · Sep 7, 2017 · US
Systems and Methods for Improving Resolution in Lensless Imaging
US-2017230575-A1 · Aug 10, 2017 · US
High index contrast grating structure for light manipulation and related method
US-9726794-B2 · Aug 8, 2017 · US
Diffractive optical element
US-2017199310-A1 · Jul 13, 2017 · US
Hologram, light-transmissive reflector plate, screen, and projection system using them
US-2017192388-A1 · Jul 6, 2017 · US
Lens having an extended range of focus and method of making the same
US-9690882-B2 · Jun 27, 2017 · US
Partially etched phase-transforming optical element
US-2017168202-A1 · Jun 15, 2017 · US
Achromatic Holographic Phase Masks, Methods, and Applications
US-2017153373-A1 · Jun 1, 2017 · US
Optical element having two phase masks
US-2017146706-A1 · May 25, 2017 · US
Systems and Methods for Lensed and Lensless Optical Sensing
US-2017112376-A1 · Apr 27, 2017 · US
System and method for phase-contrast X-ray imaging using a multi-sector source grating
US-9632040-B2 · Apr 25, 2017 · US
Partially etched phase-transforming optical element
US-9618664-B2 · Apr 11, 2017 · US
Illumination device and display apparatus
US-2017064271-A1 · Mar 2, 2017 · US
Optical system including multiplexed volume Bragg grating, methods, and applications
US-9551830-B1 · Jan 24, 2017 · US
Phase Gratings with Odd Symmetry for Lensed Optical Sensing
US-2016363702-A1 · Dec 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B5/1871?
- CPC G02B5/1871 is the Cooperative Patent Classification code for “Transmissive phase gratings.”
- How many patents are filed under CPC G02B5/1871 (Transmissive phase gratings)?
- Our database includes 366 publications tagged with this CPC code.
- Is patent activity under CPC G02B5/1871 growing?
- Publication counts under this code: 35 in 2024 vs 20 in 2025 (latest complete years).