Universal Data Systems, Inc.
Records under this name other than patents Universal Data Systems, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Universal Data Systems, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,263,670 | Microprocessor data modem Formerly held Term ended Term ended no later than Apr 21, 2001 · Low confidence | Term ended | Term ended no later than Apr 21, 2001 | Low confidence |
| US 4,373,117 | DC to DC converter for line powered modem Formerly held Term ended Term ended no later than Feb 8, 2003 · Low confidence | Term ended | Term ended no later than Feb 8, 2003 | Low confidence |
| US 4,395,590 | Line powered modem Formerly held Term ended Term ended no later than Jul 26, 2003 · Low confidence | Term ended | Term ended no later than Jul 26, 2003 | Low confidence |
| US 4,415,774 | Line powered modem automatic answer device powered from equipment Formerly held Term ended Term ended no later than Nov 15, 2003 · Low confidence | Term ended | Term ended no later than Nov 15, 2003 | Low confidence |
| US 4,417,099 | Electro-optical isolator circuit for line powered modem Formerly held Term ended Term ended no later than Nov 22, 2003 · Low confidence | Term ended | Term ended no later than Nov 22, 2003 | Low confidence |
| US 4,578,533 | Switchable line powered modem Formerly held Term ended Term ended no later than Mar 25, 2006 · Low confidence | Term ended | Term ended no later than Mar 25, 2006 | Low confidence |
| US 4,594,727 | Synchronous receiver Formerly held Term ended Term ended no later than Jun 10, 2006 · Low confidence | Term ended | Term ended no later than Jun 10, 2006 | Low confidence |
| US 4,606,051 | QPSK demodulator with I and Q post-detection data correction Formerly held Term ended Term ended no later than Aug 12, 2006 · Low confidence | Term ended | Term ended no later than Aug 12, 2006 | Low confidence |
| US 4,621,366 | Modem equalizer training using previously stored parameters Formerly held Term ended Term ended no later than Nov 4, 2006 · Low confidence | Term ended | Term ended no later than Nov 4, 2006 | Low confidence |
| US 4,777,640 | Frequency adaptive phase jitter canceler Term ended Term ended no later than Oct 11, 2008 · Low confidence | Term ended | Term ended no later than Oct 11, 2008 | Low confidence |