Assignee
ROBERTS CORP
US·15 granted patents·217 citations·filing 1977–1988
Top patents by PatentIndex Score
15 records- 0191US4971515AApparatus for moving individual sheets from a stack of sheetsROBERTS CORP·Filed 1988·Granted Nov 20, 1990·47 cites·10 claims
- 0289US4804173AMethod and apparatus for moving individual sheets from a stack of sheetsROBERTS CORP·Filed 1985·Granted Feb 14, 1989·44 cites·32 claims
- 0381US4836269AForming apparatus having catalyst introduction simultaneous with sand injectionROBERTS CORP·Filed 1988·Granted Jun 6, 1989·21 cites·8 claims
- 0469US4112999AConveyor control systemROBERTS CORP·Filed 1977·Granted Sep 12, 1978·17 cites·5 claims
- 0563US4846073ASelective delivery arrangement for self propelled pallet vehiclesROBERTS CORP·Filed 1988·Granted Jul 11, 1989·18 cites·17 claims
- 0662US4830082AMachine and method for making molds using an activating gasROBERTS CORP·Filed 1986·Granted May 16, 1989·10 cites·20 claims
- 0761US4137675ASand reclaimerROBERTS CORP·Filed 1977·Granted Feb 6, 1979·11 cites·5 claims
- 0856US4210194AAutomatic method for producing molds using chemically bonded sandsROBERTS CORP·Filed 1977·Granted Jul 1, 1980·8 cites·1 claims
- 0955US4074744AAutomatic apparatus for producing molds using chemically bonded sandsROBERTS CORP·Filed 1977·Granted Feb 21, 1978·8 cites·5 claims
- 1054US4757855AMethod and apparatus for loading and unloading tooling from a foundry machineROBERTS CORP·Filed 1987·Granted Jul 19, 1988·8 cites·29 claims
- 1151US4233907AMold conveyor drive assemblyROBERTS CORP·Filed 1978·Granted Nov 18, 1980·9 cites·6 claims
- 1244US4718474AMold transfer mechanism for a molding machineROBERTS CORP·Filed 1986·Granted Jan 12, 1988·5 cites·19 claims
- 1344US4714100AMethod and apparatus for changing a mold box on a molding machineROBERTS CORP·Filed 1986·Granted Dec 22, 1987·5 cites·21 claims
- 1434US4883558AMethod and apparatus for bonding pairs of mold shells into moldsROBERTS CORP·Filed 1988·Granted Nov 28, 1989·6 cites·24 claims
- 1526US4191239ABlow plate structure and mold formed therebyROBERTS CORP·Filed 1978·Granted Mar 4, 1980·0 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →