TDF
Records under this name other than the patents TDF 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 15 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,622,697 | Surface wave antenna system Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 10,797,398 | Surface-wave antenna, antenna array and use of an antenna or an antenna array Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 10,903,573 | Antenna with Ferromagnetic Rods Wound and Coupled Together Formerly held In force · High confidence | In force | High confidence | |
| US 11,114,761 | Antenna with partially saturated dispersive ferromagnetic substrate Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 7,609,611 | Method for Transmitting an Offset Modulated Biorthogonal Multicarrier Signal (BFDM/OM) Term ended Term ended May 23, 2026 · High confidence | Term ended | Term ended May 23, 2026 | High confidence |
| US 7,599,927 | Method for searching content particularly for extracts common to two computer files Term ended Term ended Dec 31, 2025 · From the USPTO record | Term ended | Term ended Dec 31, 2025 | From the USPTO record |
| US 7,609,787 | Reception of a signal modulated according to a multilevel coding technique Term ended Term ended Sep 26, 2025 · From the USPTO record | Term ended | Term ended Sep 26, 2025 | From the USPTO record |
| US 8,201,332 | Method for reinforcing a metal tubular structure Lapsed on the fee record Ended Jun 19, 2024 · From the USPTO record | Lapsed on the fee record | Ended Jun 19, 2024 | From the USPTO record |
| US 7,415,614 | Cryptographic Authentication with Ephemeral Modules Formerly held Term ended Term ended Dec 21, 2023 · High confidence | Term ended | Term ended Dec 21, 2023 | High confidence |
| US 10,341,084 | Method and device for synchronizing data, method and device for generating a flow of data, and corresponding computer programs Lapsed on the fee record Ended Jul 2, 2023 · From the USPTO record | Lapsed on the fee record | Ended Jul 2, 2023 | From the USPTO record |