JR

John H. Royce

📍 London, GB: #34 of 49 inventorsTop 70%
Overall (All Time): #1,488,210 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9561459 Method and apparatus for cleaning a filter John Cannon, Roger S. Turner 2017-02-07
4893826 Mobility support device Adele E. Ward, J. R. Kingsley Ward, Kevin R. Lunau, Jeffrey D. Stringer, A. Edward Moore 1990-01-16
4233780 Door seal John E. Rowarth, John Walker 1980-11-18