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

Roland Lagache

Le Canon, FR: #1 of 1 inventorsTop 100%
Overall (All Time): #883,299 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6318421 Limit control device for filling a liquid storage tank 2001-11-20
6206056 Fill limiter for a liquid storage tank 2001-03-27
5398735 Filling regulator for liquid storage tank 1995-03-21
5241983 Device for automatically controlling the flow of liquid into a tank 1993-09-07
5152315 Overfill device for a liquid storage tank 1992-10-06
4733231 System for displaying a segment, primarily for use in a remote-controlled digital display 1988-03-22