Assignee

PENA JOHN M D DE

GB·2 granted patents·50 citations·filing 1989–1990

Technology mixA62B1 D01F1

Top patents by PatentIndex Score

2 records

0176US5202302APreparation of activated carbons by impregnation with a boron compound and a phosphorus compoundPENA JOHN M D DE·Filed 1989·Granted Apr 13, 1993·23 cites·13 claims
0249US5146636AHeat and smoke protective hoodPENA JOHN M D DE·Filed 1990·Granted Sep 15, 1992·27 cites·4 claims

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