Trontech Licensing Incorporated
Records under this name other than patents Trontech Licensing Incorporated holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,160,872 | Apparatus and method for preventing disconnection of consumer premises equipment Lapsed on the fee record Ended Dec 12, 2012 · From the USPTO record | Lapsed on the fee record | Ended Dec 12, 2012 | From the USPTO record |
| US 6,304,644 | Apparatus and method for cost effective caller identification and call-waiting for a multi-line telephone Lapsed on the fee record Ended Oct 16, 2009 · From the USPTO record | Lapsed on the fee record | Ended Oct 16, 2009 | From the USPTO record |
| US 6,636,595 | Non-KSU message delivery system Formerly held Lapsed on the fee record Ended Oct 21, 2007 · From the USPTO record | Lapsed on the fee record | Ended Oct 21, 2007 | From the USPTO record |
| US 5,073,932 | Secured data transmission and error recovery mechanism in cordless telephones Term ended Term ended no later than Dec 17, 2011 · Low confidence | Term ended | Term ended no later than Dec 17, 2011 | Low confidence |
| US 5,101,426 | Telephone answering device with improved end signal detection Term ended Term ended no later than Mar 31, 2012 · Low confidence | Term ended | Term ended no later than Mar 31, 2012 | Low confidence |
| US 5,111,500 | Handset or speaker message retrieval system Term ended Term ended no later than May 5, 2012 · Low confidence | Term ended | Term ended no later than May 5, 2012 | Low confidence |
| US 5,197,093 | Enviromental adaptive mechanism for channel utilization in cordless telephones Term ended Term ended no later than Mar 23, 2013 · Low confidence | Term ended | Term ended no later than Mar 23, 2013 | Low confidence |
| US 5,289,529 | Means for improving the dynamic range of an analog/digital converter in a digital telephone answering machine Term ended Term ended no later than Feb 22, 2014 · Low confidence | Term ended | Term ended no later than Feb 22, 2014 | Low confidence |
| US 5,313,516 | Telephone answering device with automatic function Term ended Term ended no later than May 17, 2014 · Low confidence | Term ended | Term ended no later than May 17, 2014 | Low confidence |
| US 5,392,332 | Shared line telephone answering system with a telephone line-powered disconnect module Formerly held Term ended Term ended no later than Feb 21, 2015 · Low confidence | Term ended | Term ended no later than Feb 21, 2015 | Low confidence |