Assignee

VMX OPCOM

US·2 granted patents·208 citations·filing 1988–1990

Technology mixH04M2 H04Q2

Top patents by PatentIndex Score

2 records

0191US4926462AInterface to and operation of a voice messaging systemVMX OPCOM·Filed 1988·Granted May 15, 1990·162 cites·59 claims
0263US5117451AInterface to and operation of a voice messaging systemVMX OPCOM·Filed 1990·Granted May 26, 1992·46 cites·2 claims

Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →