Inventor · disambiguated record

Karl Friesen

Also filed as: FRIESEN KARL · FRIESEN KARL H

2 granted patents·18 citations·filing 1993–2020

52Inventor score

Technology areasA01B G06T

Files withDEERE & CO1 ENTRUPY INC1

Top patents by PatentIndex Score

2 records

0158US5366336ALeveling rod assembly coupled between towed implement hitch and ground wheel axleDEERE & CO·Filed 1993·Granted Nov 22, 1994·18 cites·6 claims
0237US11151583B2Shoe authentication device and authentication processENTRUPY INC·Filed 2020·Granted Oct 19, 2021·0 cites·18 claims

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