Assignee
HEYL & PATTERSON
5 granted patents·134 citations·filing 1975–1992
Top patents by PatentIndex Score
5 records- 0178US5152233AMethod of devolatilizing earth solids and mobile truck for carrying out the methodHEYL & PATTERSON·Filed 1992·Granted Oct 6, 1992·39 cites·8 claims
- 0277US4028228AProcess and apparatus for cleaning very fine oreHEYL & PATTERSON·Filed 1976·Granted Jun 7, 1977·44 cites·3 claims
- 0367US4080904ARailway car positioning apparatusHEYL & PATTERSON·Filed 1976·Granted Mar 28, 1978·26 cites·7 claims
- 0445US4690603ACar dumping apparatusHEYL & PATTERSON·Filed 1985·Granted Sep 1, 1987·16 cites·6 claims
- 0541US3987735ARailway car spotting systemHEYL & PATTERSON·Filed 1975·Granted Oct 26, 1976·9 cites·7 claims
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