DW

Derek J. Wolstenholme

📍 Calgary, CA: #1,801 of 5,407 inventorsTop 35%
Overall (All Time): #2,073,030 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8459527 Apparatus for ensuring concentric weld deposition of material on a pipe interior — 2013-06-11
8328076 Apparatus and method for ensuring concentric weld deposition of material on a pipe interior — 2012-12-11