Inventor

WALKER TERRIS FIELD

US3 patents

Patents

3 patents

US8602113B2Dec 10, 2013

Coated oil and gas well production devices

JIN HYUN WOO27 citations90

US8590627B2Nov 26, 2013

Coated sleeved oil and gas well production devices

JIN HYUN WOO24 citations90

US8561707B2Oct 22, 2013

Ultra-low friction coatings for drill stem assemblies

JIN HYUN WOO18 citations82