Inventor · disambiguated record
Robert W. Randolph
Also filed as: HILLSTEAD DAVID P · RANDOLPH ROBERT W
12 granted patents·229 citations·filing 1975–1982
92Inventor score
Files withACF IND INC12
Top patents by PatentIndex Score
12 records- 0196US4039115AApparatus for obtaining abutting contact of hollow tank courses to be circumferentially weldedACF IND INC·Filed 1976·Granted Aug 2, 1977·72 cites·16 claims
- 0292US4081651AApparatus method for welding tank sectionsACF IND INC·Filed 1976·Granted Mar 28, 1978·50 cites·24 claims
- 0374US4025034AFlux backup arrangement for circumferential weldingACF IND INC·Filed 1976·Granted May 24, 1977·21 cites·10 claims
- 0470US4168665ACovered hopper car corrugated bolster web constructionACF IND INC·Filed 1977·Granted Sep 25, 1979·24 cites·16 claims
- 0553US4126094ACombination hatch cover having supplemental locking arrangementACF IND INC·Filed 1977·Granted Nov 21, 1978·12 cites·7 claims
- 0652US4528913AGravity outlet sliding gate sealACF IND INC·Filed 1982·Granted Jul 16, 1985·12 cites·5 claims
- 0743US4348964ASliding sill low friction supporting plate assemblyACF IND INC·Filed 1980·Granted Sep 14, 1982·8 cites·7 claims
- 0841US4198032ABottom operable tank car lading valve assembly which does not require a skidACF IND INC·Filed 1978·Granted Apr 15, 1980·8 cites·10 claims
- 0940US4212333AQuick fill/empty tank car systemACF IND INC·Filed 1978·Granted Jul 15, 1980·9 cites·14 claims
- 1036US4015751AQuick change fluidizing outlet assemblyACF IND INC·Filed 1975·Granted Apr 5, 1977·7 cites·13 claims
- 1135US4599948ARailway hopper gate locking assemblyACF IND INC·Filed 1982·Granted Jul 15, 1986·4 cites·7 claims
- 1231US4544072AUncoupling device which complies with AAR specificationACF IND INC·Filed 1980·Granted Oct 1, 1985·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →