Inventor · disambiguated record
Robert L. Francis
Also filed as: FRANCIS ROBERT L
4 granted patents·121 citations·filing 1977–1991
80Inventor score
Technology areasA01F
Top patents by PatentIndex Score
4 records- 0185US4148323ASwept back impeller blade for axial flow rotorINT HARVESTER CO·Filed 1977·Granted Apr 10, 1979·31 cites·8 claims
- 0267US5192245AThresher elements for a combineCASE CORP·Filed 1991·Granted Mar 9, 1993·45 cites·22 claims
- 0364US4248249ACombine rotor drive anti-trash systemINT HARVESTER CO·Filed 1979·Granted Feb 3, 1981·16 cites·5 claims
- 0456US5192246ARotor assembly for a combineCASE CORP·Filed 1991·Granted Mar 9, 1993·29 cites·4 claims
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