Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
ER

Edward Charles Ruffell

Amport, GB: #1 of 1 inventorsTop 100%
Overall (All Time): #2,265,262 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5825461 Bellows for optical equipment 1998-10-20
5526194 Structure for holding optical accessory elements for a camera lens 1996-06-11