DG

David M. Greenspon

📍 Clive, IA: #24 of 78 inventorsTop 35%
🗺 Iowa: #3,091 of 15,303 inventorsTop 25%
Overall (All Time): #1,029,960 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7360921 Portable flashlight alarm clock — 2008-04-22
D548522 Drinking mug with stirring apparatus — 2007-08-14
D548523 Drinking tumbler with stirring apparatus — 2007-08-14
D530734 Calculator — 2006-10-24
D497080 Coffee mug with stirring apparatus — 2004-10-12