Assignee
WITTEN AUTOMATIC VENT COMPANY
US·3 granted patents·98 citations·filing 1979–1987
Top patents by PatentIndex Score
3 records- 0178US4274330AVentilator and mounting frame assemblyWITTEN AUTOMATIC VENT COMPANY·Filed 1979·Granted Jun 23, 1981·54 cites·17 claims
- 0251US4587892AFoundation ventilatorWITTEN AUTOMATIC VENT COMPANY·Filed 1985·Granted May 13, 1986·20 cites·7 claims
- 0350US4711160ATwo-piece foundation ventilatorWITTEN AUTOMATIC VENT COMPANY·Filed 1987·Granted Dec 8, 1987·24 cites·16 claims
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