Inventor · disambiguated record
Ralph E. Knapp
Also filed as: KNAPP RALPH E
3 granted patents·65 citations·filing 1972–1989
71Inventor score
Top patents by PatentIndex Score
3 records- 0182US5010657ATape measure end hookCOOPER IND INC·Filed 1989·Granted Apr 30, 1991·53 cites·6 claims
- 0246US3997975ACalibration of a meridian seeking instrumentLEAR SIEGLER INC·Filed 1972·Granted Dec 21, 1976·8 cites·13 claims
- 0334US3936947ARotating arm aiming device systemLEAR SIEGLER INC·Filed 1972·Granted Feb 10, 1976·4 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →