Inventor · disambiguated record
Frank G. Back
Also filed as: BACK FRANK G
3 granted patents·23 citations·filing 1975–1981
66Inventor score
Top patents by PatentIndex Score
3 records- 0147US4009928AThree element varifocal lens systemsBACK FRANK G·Filed 1975·Granted Mar 1, 1977·14 cites·1 claims
- 0237US4095257AOrbiter for pyroelectric focusing devicesZOOMAR INC·Filed 1976·Granted Jun 13, 1978·8 cites·3 claims
- 0326US4380380AEpiscopic projectorBACK FRANK G·Filed 1981·Granted Apr 19, 1983·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →