John A. VanderPloeg

GI Guardian Industries: 1 patents #13 of 32Top 45%

📍 Zeeland, MI: #6 of 24 inventorsTop 25%

🗺 Michigan: #1,670 of 6,370 inventorsTop 30%

Overall (2003): #189,022 of 273,478Top 70%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6567143	NW twisted nematic LCD with negative and tilted retarders on each side of liquid crystal cell to improve vertical contrast ratios	Gang Xu	2003-05-20