Mary M. Mantelos

DP Dard Products: 1 patents #3 of 7Top 45%

📍 Chicago, IL: #7,538 of 13,327 inventorsTop 60%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #3,860,022 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D329584	Letter opener	Cary Shevin	1992-09-22