SD

Stephen P. Doan

CC Columbia Steel Casting Co.: 6 patents #1 of 18Top 6%
📍 Hillsboro, OR: #631 of 2,365 inventorsTop 30%
🗺 Oregon: #6,381 of 28,073 inventorsTop 25%
Overall (All Time): #854,416 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9163378 Pin retainer for dragline pins David E. Havel, Brian C. Matlock 2015-10-20
8112912 Dump block with improved assembly features 2012-02-14
D610771 Portion of a dump block 2010-02-23
7155895 Coupling link Michael D. Moehnke, Anthony Miotke 2007-01-02
6871486 Chain link with angularly disposed end portions Michael D. Moehnke, Richard Stewart, David Garnet John Conroy, Martin Charles Simpson, James Russell +1 more 2005-03-29
5988929 Easy-out cable socket wedge and method for use thereof 1999-11-23