Assignee
WANG FUN DEN
3 granted patents·583 citations·filing 1982–1988
Top patents by PatentIndex Score
3 records- 0197US4534427AAbrasive containing fluid jet drilling apparatus and processWANG FUN DEN·Filed 1983·Granted Aug 13, 1985·203 cites·20 claims
- 0296US4479541AMethod and apparatus for recovery of oil, gas and mineral deposits by panel openingWANG FUN DEN·Filed 1982·Granted Oct 30, 1984·367 cites·16 claims
- 0344US4878712AHydraulic method of mining coalWANG FUN DEN·Filed 1988·Granted Nov 7, 1989·13 cites·22 claims
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