JF

John Frodsham

BL Bl Technology Limited: 1 patents #9 of 17Top 55%
IF Icon Health & Fitness: 1 patents #47 of 81Top 60%
Overall (All Time): #2,268,791 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5611539 Pole sport court Scott R. Watterson, William Coleman Lay, John C. Heath, William T. Dalebout 1997-03-18
4584869 Method and apparatus for detecting knock in a spark ignition engine 1986-04-29