John D. Hartman

WG Wilson Sporting Goods: 1 patents #147 of 235Top 65%

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

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

Overall (All Time): #3,416,483 of 4,157,543Top 85%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D520581	Sports racquet	William D. Severa, Donald G. Loeffler, Ronald R. Rocchi, Joey Nakayama	2006-05-09