John Schraub

HC Hughes Tool Company: 1 patents #83 of 224Top 40%

WE Weatherford/Lamb: 1 patents #476 of 852Top 60%

📍 Huntsville, TX: #11 of 89 inventorsTop 15%

🗺 Texas: #33,546 of 125,132 inventorsTop 30%

Overall (All Time): #1,260,994 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6845817	Kick over tool for side pocket mandrel	—	2005-01-25
5706891	Gravel pack mandrel system for water-flood operations	—	1998-01-13
5070902	Lateral orifice water regulator	—	1991-12-10
4628997	Packoff	—	1986-12-16