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

Ting Hu Chang

LOLogitech: 1 patents #48 of 121Top 40%
LSLogitech Europe S.A.: 1 patents #644 of 1,028Top 65%
Overall (All Time): #2,216,816 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6429848 Optical-mechanical roller with ratchet Antoine Merminod, Marc Bidiville 2002-08-06
6157369 Optical-mechanical roller with ratchet Antoine Merminod, Marc Bidiville 2000-12-05