Inventor · disambiguated record
Ray L. Ferris
Also filed as: FERRIS RAY · FERRIS RAY L · MARULIC WALTER J
11 granted patents·287 citations·filing 1975–1987
91Inventor score
Top patents by PatentIndex Score
11 records- 0192US4805539AWell car end structure having frameless radial truckTRINITY IND INC·Filed 1987·Granted Feb 21, 1989·74 cites·19 claims
- 0292US4191107AArticulated railway carPULLMAN INC·Filed 1978·Granted Mar 4, 1980·53 cites·9 claims
- 0385US4136621ARailway hopper car door locking mechanismPULLMAN INC·Filed 1977·Granted Jan 30, 1979·40 cites·14 claims
- 0481US4570816AHatch cover and locking structurePULLMAN STANDARD INC·Filed 1984·Granted Feb 18, 1986·53 cites·18 claims
- 0574US4741274AHopper door operating mechanismTRINITY IND·Filed 1986·Granted May 3, 1988·42 cites·25 claims
- 0655US4158996ALocking arrangement for hopper car doorsPULLMAN INC·Filed 1977·Granted Jun 26, 1979·12 cites·24 claims
- 0738US4068410ARailway car door locking mechanismPULLMAN INC·Filed 1976·Granted Jan 17, 1978·5 cites·5 claims
- 0833US3964766AFifth wheel plate assemblyPULLMAN INC·Filed 1975·Granted Jun 22, 1976·3 cites·6 claims
- 0931US4141300ARailway car for highway trailersPULLMAN INC·Filed 1977·Granted Feb 27, 1979·2 cites·12 claims
- 1030US4295430ARailway hopper car latch mechanismPULLMAN INC·Filed 1980·Granted Oct 20, 1981·2 cites·10 claims
- 1129US3944375AFifth wheel plate assemblyPULLMAN INC·Filed 1975·Granted Mar 16, 1976·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →