Dave L. Heinley

CS Canadian Downhole Drill Systems: 1 patents #5 of 13Top 40%

📍 Edmonton, CA: #922 of 2,912 inventorsTop 35%

Overall (All Time): #2,231,348 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6302198	One trip milling system	Leonardo Ritorto	2001-10-16
5971078	Method and apparatus for retrieving downhole tools	Leonardo Ritorto	1999-10-26