AJ

Albert E. Roos, Jr.

SI Slimdril International: 3 patents #1 of 8Top 15%
📍 Houston, TX: #6,659 of 21,073 inventorsTop 35%
🗺 Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,650,271 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5396966 Steering sub for flexible drilling Steven W. Drews, William J. McDonald 1995-03-14
5368109 Apparatus for arcuate drilling Frederick J. Pittard, Jr., Roger C. Leaf, Steven W. Drews 1994-11-29
5320179 Steering sub for flexible drilling Roger C. Leaf, Frederick J. Pittard, Jr. 1994-06-14