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

Rolf P. Haggstrom — 9 Patents

BEBlh Electronics: 3 patents #1 of 5Top 20%
FAFlintab Ab: 3 patents #1 of 6Top 20%
TGThe Flintec Group: 2 patents #3 of 3Top 100%
East Walpole, MA: #9 of 38 inventorsTop 25%
Massachusetts: #14,132 of 88,656 inventorsTop 20%
Overall (All Time): #583,579 of 4,157,543Top 15%
9 Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7342185 Compression column load cell with compensation for off center loading errors 2008-03-11
6888074 Compression column load cell 2005-05-03
5135062 Strain gage transducer system with guard circuit Harry E. Lockery 1992-08-04
5086856 Method and apparatus for weighing a wheel supported load 1992-02-11
5045827 Low-force transducer 1991-09-03
5005429 Weigh module 1991-04-09
4958526 Force measuring device with zero adjustment 1990-09-25
D306144 Load hauling vehicle hitch pin transducer for electronic load weighing 1990-02-20
4854179 Coaxial load cell 1989-08-08