Inventor · disambiguated record
Frederick E. Vorwerk
Also filed as: VORWERK FREDERICK E
6 granted patents·210 citations·filing 1979–1982
85Inventor score
Files withACF IND INC6
Top patents by PatentIndex Score
6 records- 0192US4608931AFilament wound railway hopper carACF IND INC·Filed 1981·Granted Sep 2, 1986·125 cites·7 claims
- 0275US4497258ATransverse bulkhead connection to filament wound vehicle body sidesACF IND INC·Filed 1982·Granted Feb 5, 1985·31 cites·9 claims
- 0367US4498400AHopper slope sheet support and connecting meansACF IND INC·Filed 1982·Granted Feb 12, 1985·21 cites·9 claims
- 0464US4315465AConstant contact side bearing for articulated rail carsACF IND INC·Filed 1980·Granted Feb 16, 1982·20 cites·35 claims
- 0543US4280706ASeal for fluidizing outletACF IND INC·Filed 1979·Granted Jul 28, 1981·7 cites·20 claims
- 0638US4422532AHand brake mechanism including force dividing assemblyACF IND INC·Filed 1981·Granted Dec 27, 1983·6 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →