Exfo Electro-Optical Engineering Inc.
Records under this name other than the patents Exfo Electro-Optical Engineering Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 3 patents it holds.
Back to Exfo Electro-Optical Engineering Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,358,930 | In-Band Optical Signal to Noise Ratio Determination Method and System Formerly held In force · High confidence | In force | High confidence | |
| US 8,687,957 | Method and Apparatus for Deriving Parameters of Optical Paths in Optical Networks Using Two-Wavelength Otdr and a Wavelength-Dependent Reflective Element Formerly held In force · High confidence | In force | High confidence | |
| US 7,327,302 | Equivalent Time Asynchronous Sampling Arrangement Formerly held Term ended Term ended Apr 1, 2026 · High confidence | Term ended | Term ended Apr 1, 2026 | High confidence |
| US 8,482,725 | Method and apparatus for identification of multiple fibers using an OTDR Lapsed on the fee record Ended Jul 9, 2025 · High confidence | Lapsed on the fee record | Ended Jul 9, 2025 | High confidence |
| US 7,199,870 | Polarization Independent Optical Sampling Arrangement Formerly held Term ended Term ended Feb 10, 2025 · High confidence | Term ended | Term ended Feb 10, 2025 | High confidence |
| US 7,167,655 | Measurement System for Wide Dynamic Range Optical Power Meter Term ended Term ended Jan 12, 2025 · High confidence | Term ended | Term ended Jan 12, 2025 | High confidence |
| US 6,930,776 | High Optical Rejection Optical Spectrum Analyzer/Monochromator Term ended Term ended Jan 22, 2024 · High confidence | Term ended | Term ended Jan 22, 2024 | High confidence |
| US 7,227,645 | Method and Apparatus for Measuring Polarization Mode Dispersion Term ended Term ended Feb 6, 2023 · High confidence | Term ended | Term ended Feb 6, 2023 | High confidence |
| US 7,719,667 | Estimating Loss of Mechanical Splices Interconnecting Optical Fibers, and Connector Installation Tool Lapsed on the fee record Ended May 18, 2022 · High confidence | Lapsed on the fee record | Ended May 18, 2022 | High confidence |
| US 6,636,306 | Optical Spectrum Analyzer Term ended Term ended Dec 6, 2021 · High confidence | Term ended | Term ended Dec 6, 2021 | High confidence |