Optical Technologies Corp.
Records under this name other than patents Optical Technologies Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Optical Technologies Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,773,104 | Ultraviolet Filter Coating Formerly held Term ended Term ended May 4, 2021 · Medium confidence | Term ended | Term ended May 4, 2021 | Medium confidence |
| US 6,018,404 | Bidirectional optical telecommunication system comprising a bidirectional optical amplifier Formerly held Term ended Term ended Jan 21, 2019 · From the USPTO record | Term ended | Term ended Jan 21, 2019 | From the USPTO record |
| US 6,031,646 | Optical fiber telecommunication system Formerly held Term ended Term ended Jun 4, 2017 · From the USPTO record | Term ended | Term ended Jun 4, 2017 | From the USPTO record |
| US 6,603,598 | Optical amplifying unit and optical transmission system Formerly held Lapsed on the fee record Ended Aug 5, 2015 · From the USPTO record | Lapsed on the fee record | Ended Aug 5, 2015 | From the USPTO record |
| US 6,577,425 | Optical device for processing a sequence of bits Formerly held Lapsed on the fee record Ended Jun 10, 2011 · From the USPTO record | Lapsed on the fee record | Ended Jun 10, 2011 | From the USPTO record |
| US 6,437,888 | Device for Adding and Dropping Optical Signals Formerly held Lapsed on the fee record Ended Aug 20, 2006 · Low confidence | Lapsed on the fee record | Ended Aug 20, 2006 | Low confidence |
| US 6,414,769 | Bidirectional multichannel optical telecommunication system Formerly held Lapsed on the fee record Ended Jul 2, 2006 · From the USPTO record | Lapsed on the fee record | Ended Jul 2, 2006 | From the USPTO record |
| US 6,288,810 | Device for adding and dropping optical signals Formerly held Lapsed on the fee record Ended Sep 11, 2005 · From the USPTO record | Lapsed on the fee record | Ended Sep 11, 2005 | From the USPTO record |
| US 4,442,750 | Fiber optic musical instruments Term ended Term ended no later than Apr 17, 2004 · Low confidence | Term ended | Term ended no later than Apr 17, 2004 | Low confidence |
| US 4,477,723 | Fiber optic electric field sensor/phase modulator Term ended Term ended no later than Oct 16, 2004 · Low confidence | Term ended | Term ended no later than Oct 16, 2004 | Low confidence |