JB

John M. Birckhead

WE Weatherford/Lamb: 1 patents #31 of 108Top 30%
📍 Spring, TX: #21 of 167 inventorsTop 15%
🗺 Texas: #1,045 of 8,590 inventorsTop 15%
Overall (2002): #58,936 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6419011 Annular shaped interrupted solenoid activator and pump for borehole subsea use (BEI-0002) 2002-07-16
6382234 One shot valve for operating down-hole well working and sub-sea devices and tools Harry Ehlert 2002-05-07