Douglas J. Laven

📍 Mankato, MN: #95 of 164 inventorsTop 60%

🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #3,929,565 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4836823	Heart shaped novelty item	—	1989-06-06