Assignee

MA JOHN

3 patents

Top patents by PatentIndex Score

US4352209ASep 28, 1982

Up-down frequency converter for cable T.V.

MA JOHN68 citations94

US4626862ADec 2, 1986

Antenna having coaxial driven element with grounded center conductor

MA JOHN19 citations71

US4619000AOct 21, 1986

CATV converter having improved tuning circuits

MA JOHN9 citations71