John K. Volkert

OU One Up: 3 patents #1 of 1Top 100%

📍 Northfield, IL: #1 of 6 inventorsTop 20%

🗺 Illinois: #133 of 3,813 inventorsTop 4%

Overall (1989): #9,429 of 140,708Top 7%

Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4874356	Method of making a piece containing multiple pop-ups	—	1989-10-17
4867480	Method of making pop-ups with placard display	—	1989-09-19
4833802	Method of making pop-ups	—	1989-05-30