Assignee

QUAD INC E

US·2 granted patents·28 citations·filing 1988–1989

Technology mixB01D1 F01N1 F02D1 F02M1 Y02T1 Y10S1

Top patents by PatentIndex Score

2 records

0145US4960098AMethod and apparatus for maintaining optimum oxygen level in combustion enginesQUAD INC E·Filed 1988·Granted Oct 2, 1990·10 cites·10 claims
0242US4999998AMethod and apparatus for elimination of toxic oxides from exhaust gasesQUAD INC E·Filed 1989·Granted Mar 19, 1991·18 cites·9 claims

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