GD

Greg J. Drzewiecki

WE Weldfit: 2 patents #1 of 18Top 6%
Illinois Tool Works: 1 patents #2,292 of 4,258Top 55%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,156,480 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11028958 Automated pig launching system Russ C. Sander, David D. Wint, Todd K. Sale, Roxy R. Riggs, Douglas A. Sahm 2021-06-08
9976686 Automated pig launching system Russ C. Sander, David D. Wint, Todd K. Sale, Roxy R. Riggs, Douglas A. Sahm 2018-05-22
8851121 Torque multiplier for valve turning machine Scott Ferrar, Jeffrey M. Swiatowy 2014-10-07
5161327 Pipe planter Bruce Campbell, Kenneth C. Hardy 1992-11-10