DS

David Brent Sinclair

SL Smiths Industries Public Limited: 3 patents #18 of 171Top 15%
GT Gnr Technologies: 2 patents #2 of 4Top 50%
📍 Foxwarren, CA: #6 of 57 inventorsTop 15%
Overall (All Time): #645,398 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9322144 Manhole cover assembly with cams 2016-04-26
6196760 Adjustment riser 2001-03-06
6161984 Manhole or catch basin assembly 2000-12-19
D393320 Parking curb 1998-04-07
D387181 Speed bump 1997-12-02
5357801 Liquid-level gauging 1994-10-25
5309763 Liquid-level gauging 1994-05-10
5301549 Liquid-level gauging 1994-04-12