Inventor · disambiguated record
William H. Engelmann
Also filed as: ENGELMANN WILLIAM H
4 granted patents·72 citations·filing 1976–1990
78Inventor score
Files withUS INTERIOR4
Top patents by PatentIndex Score
4 records- 0185US4080419AFoam injection leaching process for fragmented oreUS INTERIOR·Filed 1976·Granted Mar 21, 1978·26 cites·7 claims
- 0257US5196401AMethod of enhancing rock fragmentation and extending drill bit lifeUS INTERIOR·Filed 1990·Granted Mar 23, 1993·17 cites·20 claims
- 0354US4959164ARock fragmentation methodUS INTERIOR·Filed 1988·Granted Sep 25, 1990·13 cites·5 claims
- 0444US4765415AIsoelectric drilling methodUS INTERIOR·Filed 1987·Granted Aug 23, 1988·16 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →