Inventor · disambiguated record

Richard Henry Etra

Also filed as: ETRA RICHARD HENRY

2 granted patents·35 citations·filing 1975–1977

58Inventor score

Technology areasG07C H04M

Files withBELL TELEPHONE LABOR INC1 ETRA RICHARD HENRY1

Top patents by PatentIndex Score

2 records

0161US4109140ADiver's control and indication apparatusETRA RICHARD HENRY·Filed 1977·Granted Aug 22, 1978·34 cites·18 claims
0224US3982232ATraffic usage data gathering apparatusBELL TELEPHONE LABOR INC·Filed 1975·Granted Sep 21, 1976·1 cites·16 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →