Welldynamics, B.V.
Records under this name other than the patents Welldynamics, B.V. 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 1 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,400,803 | Method and apparatus for providing a hydrogen diffusion barrier for fiber optic cables used in hostile environments Term ended Term ended Mar 14, 2026 · From the USPTO record | Term ended | Term ended Mar 14, 2026 | From the USPTO record |
| US 7,218,820 | Method and system for providing a hydrogen diffusion barrier for fiber optic cables used in hostile environments Term ended Term ended Feb 17, 2025 · From the USPTO record | Term ended | Term ended Feb 17, 2025 | From the USPTO record |
| US 7,159,468 | Fiber optic differential pressure sensor Term ended Term ended Oct 15, 2024 · From the USPTO record | Term ended | Term ended Oct 15, 2024 | From the USPTO record |
| US 6,907,170 | Hydrogen diffusion delay barrier for fiber optic cables used in hostile environments Term ended Term ended Jul 22, 2024 · From the USPTO record | Term ended | Term ended Jul 22, 2024 | From the USPTO record |
| US 6,874,361 | Distributed flow properties wellbore measurement system Term ended Term ended Jan 8, 2024 · From the USPTO record | Term ended | Term ended Jan 8, 2024 | From the USPTO record |
| US 8,961,006 | Fiber Optic Sensing Systems and Methods Term ended Term ended Aug 25, 2023 · Medium confidence | Term ended | Term ended Aug 25, 2023 | Medium confidence |
| US 6,957,576 | Subterranean Well Pressure and Temperature Measurement Formerly held Term ended Term ended Aug 11, 2023 · High confidence | Term ended | Term ended Aug 11, 2023 | High confidence |
| US 6,747,743 | Multi-Parameter Interferometric Fiber Optic Sensor Term ended Term ended Jun 20, 2022 · High confidence | Term ended | Term ended Jun 20, 2022 | High confidence |
| US 7,458,273 | Fiber optic differential pressure sensor Lapsed on the fee record Ended Dec 2, 2020 · From the USPTO record | Lapsed on the fee record | Ended Dec 2, 2020 | From the USPTO record |
| US 6,374,913 | Sensor array suitable for long term placement inside wellbore casing Term ended Term ended May 18, 2020 · From the USPTO record | Term ended | Term ended May 18, 2020 | From the USPTO record |