John R. Grindon

📍 Hazelwood, MO: #1 of 5 inventorsTop 20%

🗺 Missouri: #45 of 859 inventorsTop 6%

Overall (1989): #23,900 of 140,708Top 20%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4871256	Means for projecting patterns of light	—	1989-10-03
4846577	Optical means for making measurements of surface contours	—	1989-07-11