John C. Collingwood

BP British Gas Plc: 2 patents #16 of 134Top 15%

📍 Biggenden, AU: #39 of 131 inventorsTop 30%

Overall (All Time): #2,346,296 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4566332	Wheel probe	—	1986-01-28
4285243	Ultrasonic pipe inspection apparatus	—	1981-08-25