DB

Douglas James Brunskill

NM Ncs Multistage: 1 patents #5 of 9Top 60%
📍 Calgary, CA: #169 of 618 inventorsTop 30%
Overall (2018): #434,278 of 503,207Top 90%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9903182 Fracturing valve and fracturing tool string Donald Getzlaf, John Ravensbergen, Shawn Leggett 2018-02-27