Roger W. von Ahrens

📍 Colonia, NJ: #31 of 117 inventorsTop 30%

🗺 New Jersey: #23,480 of 69,400 inventorsTop 35%

Overall (All Time): #1,675,278 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4652019	Partially consumable spacer chill ring	—	1987-03-24
4611830	Partially consumable spacer chill rings and their use in welding pipe joints	—	1986-09-16
4515000	Method for manufacturing consumable welding spacer	—	1985-05-07