David M. Greenspon

📍 Clive, IA: #2 of 11 inventorsTop 20%

🗺 Iowa: #283 of 1,090 inventorsTop 30%

Overall (2004): #239,828 of 270,089Top 90%

Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D497080	Coffee mug with stirring apparatus	—	2004-10-12