John G. Helmstetter

📍 Brick, NJ: #3 of 14 inventorsTop 25%

🗺 New Jersey: #926 of 3,756 inventorsTop 25%

Overall (1989): #95,011 of 140,708Top 70%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4886548	Fireproofing of building materials	—	1989-12-12