JS

Jack N. Spencer

📍 Plymouth, MN: #766 of 1,545 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,228,420 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6257718 Clip-on sunglasses with bridge mounting Charles L. Heck 2001-07-10
5696571 Clip-on type sunglasses with bridge mounting Charles L. Heck 1997-12-09