Master Key, LLC
Records under this name other than patents Master Key, LLC holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,843,377 | System and method for foreign language processing Lapsed on the fee record Ended Sep 23, 2022 · From the USPTO record | Lapsed on the fee record | Ended Sep 23, 2022 | From the USPTO record |
| US 7,589,269 | Device and method for visualizing musical rhythmic structures Lapsed on the fee record Ended Sep 15, 2021 · From the USPTO record | Lapsed on the fee record | Ended Sep 15, 2021 | From the USPTO record |
| US 7,538,265 | Apparatus and method for visualizing music and other sounds Lapsed on the fee record Ended May 26, 2021 · From the USPTO record | Lapsed on the fee record | Ended May 26, 2021 | From the USPTO record |
| US 8,127,231 | System and method for audio equalization Lapsed on the fee record Ended Feb 28, 2020 · From the USPTO record | Lapsed on the fee record | Ended Feb 28, 2020 | From the USPTO record |
| US 8,073,701 | Method and apparatus for identity verification using visual representation of a spoken word Lapsed on the fee record Ended Dec 6, 2019 · From the USPTO record | Lapsed on the fee record | Ended Dec 6, 2019 | From the USPTO record |
| US 8,018,459 | Calibration of transmission system using tonal visualization components Lapsed on the fee record Ended Sep 13, 2019 · From the USPTO record | Lapsed on the fee record | Ended Sep 13, 2019 | From the USPTO record |
| US 7,994,409 | Method and apparatus for editing and mixing sound recordings Lapsed on the fee record Ended Aug 9, 2019 · From the USPTO record | Lapsed on the fee record | Ended Aug 9, 2019 | From the USPTO record |
| US 7,960,637 | Archiving of environmental sounds using visualization components Lapsed on the fee record Ended Jun 14, 2019 · From the USPTO record | Lapsed on the fee record | Ended Jun 14, 2019 | From the USPTO record |
| US 7,956,273 | Apparatus and method for visualizing music and other sounds Lapsed on the fee record Ended Jun 7, 2019 · From the USPTO record | Lapsed on the fee record | Ended Jun 7, 2019 | From the USPTO record |
| US 7,947,888 | Method and apparatus for computer-generated music Lapsed on the fee record Ended May 24, 2019 · From the USPTO record | Lapsed on the fee record | Ended May 24, 2019 | From the USPTO record |