Inventor · disambiguated record
Richard J. Piereth
Also filed as: PIERETH RICHARD J
5 granted patents·669 citations·filing 1985–1991
87Inventor score
Top patents by PatentIndex Score
5 records- 0192US5163083AAutomation of telephone operator assistance callsAT & T BELL LAB·Filed 1990·Granted Nov 10, 1992·237 cites·51 claims
- 0287US5181237AAutomation of telephone operator assistance callsAT & T BELL LAB·Filed 1991·Granted Jan 19, 1993·157 cites·11 claims
- 0386US5185781AAutomation of telephone operator assistance callsAT & T BELL LAB·Filed 1991·Granted Feb 9, 1993·149 cites·9 claims
- 0485US4899375AMore efficient call handling for operator assistance callsAMERICAN TELEPHONE & TELEGRAPH·Filed 1988·Granted Feb 6, 1990·85 cites·27 claims
- 0573US4677609ASemi-automated directory assistance systemsAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jun 30, 1987·41 cites·19 claims
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