WB

William G. Blackburn

📍 Clearwater, FL: #219 of 932 inventorsTop 25%
🗺 Florida: #16,597 of 67,251 inventorsTop 25%
Overall (All Time): #1,653,352 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5285050 Battery-operated portable cigarette lighter with closure actuated switch 1994-02-08
5274214 Battery powered portable cigarette lighter having a press-fitted ceramic heat concentrating and protective resistance heating filament support 1993-12-28
5235157 Battery powered cigarette lighter having recessed heating element and normally open pivotally actuated switch 1993-08-10