Metrolight Ltd.
Records under this name other than patents Metrolight Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 8 of 8 · Back to Metrolight Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,911,152 | High Frequency Electronic Ballast for High Intensity Discharge Lamps and Improved Drive Method Therefor Lapsed on the fee record Ended Mar 22, 2023 · High confidence | Lapsed on the fee record | Ended Mar 22, 2023 | High confidence |
| US 8,860,312 | Light emitting diodes driven by high intensity discharge ballast Lapsed on the fee record Ended Oct 14, 2022 · From the USPTO record | Lapsed on the fee record | Ended Oct 14, 2022 | From the USPTO record |
| US 8,849,428 | Field Configurable Ballast Lapsed on the fee record Ended Sep 30, 2022 · High confidence | Lapsed on the fee record | Ended Sep 30, 2022 | High confidence |
| US 9,986,617 | Light-emitting diode electrical circuitry for illumination Lapsed on the fee record Ended May 29, 2022 · From the USPTO record | Lapsed on the fee record | Ended May 29, 2022 | From the USPTO record |
| US 7,982,411 | Ignition and Operation of Electronic High Intensity Discharge Lamps Lapsed on the fee record Ended Jul 19, 2019 · High confidence | Lapsed on the fee record | Ended Jul 19, 2019 | High confidence |
| US 9,035,556 | Parallel-connected ballast circuits Lapsed on the fee record Ended May 19, 2019 · From the USPTO record | Lapsed on the fee record | Ended May 19, 2019 | From the USPTO record |
| US 8,933,631 | Light emitting diode (LED) lighting fixture Lapsed on the fee record Ended Jan 13, 2019 · From the USPTO record | Lapsed on the fee record | Ended Jan 13, 2019 | From the USPTO record |
| US 6,172,468 | Method and apparatus for igniting a gas discharge lamp Term ended Term ended Jan 4, 2019 · From the USPTO record | Term ended | Term ended Jan 4, 2019 | From the USPTO record |