DF

Duane Franzen

CU Custom-Pak: 5 patents #7 of 36Top 20%
JC Johnson Level & Tool Mfg. Co.: 1 patents #21 of 34Top 65%
📍 Cordova, IL: #2 of 9 inventorsTop 25%
🗺 Illinois: #15,122 of 84,256 inventorsTop 20%
Overall (All Time): #833,108 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10167035 Blow molded toy cycle Jeffrey Scott Anderson, Andrew James McDonnough, Pamela Jo Naeve, Alan Walter Knapper, Michael Grinnall 2019-01-01
9682739 Blow molded toy cycle Jeffrey Scott Anderson, Andrew James McDonnough, Pamela Jo Naeve, Alan Walter Knapper, Michael Grinnall 2017-06-20
8899416 Soft plastic insert for use in protective case Andrew James McDonnough, Michael Grinnall 2014-12-02
7182905 Blow molded article with retaining feature and method of creating same Michael Grinnall, Terry Lucky 2007-02-27
7172067 Level case with positioning indentations Richard J. Gruetzmacher, Michael Grinnall 2007-02-06
6988633 Blow molded article with retaining feature and method of creating same Michael Grinnall, Terry Lucky 2006-01-24