Inventor · disambiguated record
Marvin Stark
Also filed as: STARK MARVIN · STARK MARVIN B
11 granted patents·279 citations·filing 1975–1996
92Inventor score
Top patents by PatentIndex Score
11 records- 0186US4250814ADual hopper car doorsPULLMAN INC·Filed 1978·Granted Feb 17, 1981·46 cites·14 claims
- 0286US4224877ARailway hopper car closure actuating mechanismPULLMAN INC·Filed 1978·Granted Sep 30, 1980·44 cites·10 claims
- 0384US4252067ASide wall for railway hopper carPULLMAN INC·Filed 1978·Granted Feb 24, 1981·35 cites·16 claims
- 0481US6241415B1Adjustable and reusable handle for containersFiled 1996·Granted Jun 5, 2001·73 cites·7 claims
- 0558US4057020ACam operated hatch cover holddownPULLMAN INC·Filed 1976·Granted Nov 8, 1977·14 cites·6 claims
- 0656US4362111ACovered hopper carSTARK MARVIN·Filed 1980·Granted Dec 7, 1982·16 cites·10 claims
- 0748US4407203ARailroad tank car lift lugRICHMOND TANK CAR COMPANY·Filed 1981·Granted Oct 4, 1983·13 cites·8 claims
- 0845US4130068ACenter filler for railway carsPULLMAN INC·Filed 1978·Granted Dec 19, 1978·9 cites·4 claims
- 0945US4046082ATrough hatch locking devicePULLMAN INC·Filed 1975·Granted Sep 6, 1977·11 cites·9 claims
- 1039US4245565ACambered hatch cover seal arrangementPULLMAN INC·Filed 1978·Granted Jan 20, 1981·9 cites·9 claims
- 1125US4411371AHatch cover locking mechanismCOLLIER LYN D·Filed 1980·Granted Oct 25, 1983·9 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →