Apparatus and method for measuring the delay time difference between propagation modes
US-12517008-B2 · Jan 6, 2026 · US
by measuring polarization mode dispersion [PMD]
by measuring polarization mode dispersion [PMD] · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01M11/336 |
| Official title | {by measuring polarization mode dispersion [PMD]} |
| Display label | by measuring polarization mode dispersion [PMD] |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
On-silicon integrated test structure for the characterization of the pdl of a fiber/silicon optical coupler with a two-dimensional diffraction grating
US-2025207998-A1 · Jun 26, 2025 · US
Apparatus and method for measuring the delay time difference between propagation modes
US-2025003831-A1 · Jan 2, 2025 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-11860058-B2 · Jan 2, 2024 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-2021239568-A1 · Aug 5, 2021 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-11002631-B2 · May 11, 2021 · US
Measuring polarization extinction ratio (PER) using a reference master test jumper (MTJ)
US-11002632-B2 · May 11, 2021 · US
Optical characteristic evaluation method and optical characteristic evaluation system
US-10883880-B2 · Jan 5, 2021 · US
Measuring polarization extinction ratio (per) using a reference master test jumper (mtj)
US-2020408637-A1 · Dec 31, 2020 · US
Monitorable hollow core optical fiber
US-2020378864-A1 · Dec 3, 2020 · US
Monitorable hollow core optical fiber
US-10845268-B1 · Nov 24, 2020 · US
Optical characteristic evaluation method and optical characteristic evaluation system
US-2020132551-A1 · Apr 30, 2020 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-2020096416-A1 · Mar 26, 2020 · US
Optical devices for calibrating, and for analyzing the quality of a glazing, and methods
US-2020088651-A1 · Mar 19, 2020 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-10508972-B2 · Dec 17, 2019 · US
Method and system for multi-fiber cable testing
US-2019170610-A1 · Jun 6, 2019 · US
Nonlinear spatially resolved interferometer for characterizing optical properties of deployed telecommunication cables
US-10193620-B2 · Jan 29, 2019 · US
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
US-2018283985-A1 · Oct 4, 2018 · US
Nonlinear Spatially Resolved Interferometer for characterizing Optical Properties of Deployed Telecommunication Cables
US-2018241468-A1 · Aug 23, 2018 · US
Nonlinear spatially resolved interferometer (NL-SRI) for characterizing optical properties of deployed telecommunication cables
US-9960843-B2 · May 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01M11/336?
- CPC G01M11/336 is the Cooperative Patent Classification code for “by measuring polarization mode dispersion [PMD].”
- How many patents are filed under CPC G01M11/336 (by measuring polarization mode dispersion [PMD])?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC G01M11/336 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).