DM

Daniel C. Markel

Schlumberger Technology: 2 patents #28 of 323Top 9%
📍 Houston, TX: #149 of 1,272 inventorsTop 15%
🗺 Texas: #1,045 of 8,590 inventorsTop 15%
Overall (2002): #68,896 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6453817 Shaped charge capsule Karen M. Spenley, Charles A. Sjogren, David E. Sewell 2002-09-24
6386109 Shock barriers for explosives James E. Brooks, Thomas H. Zimmerman, Wenbo Yang, James F. Shelton, Wallace E. Voreck 2002-05-14