JR

John Ravensbergen

BS Bj Services: 2 patents #1 of 20Top 5%
📍 Swan Hills, CA: #1 of 20 inventorsTop 5%
Overall (2003): #59,556 of 273,478Top 25%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6561289 Bottomhole assembly and methods of use Lance Portman 2003-05-13
6527067 Lateral entry guidance system (LEGS) Mitchell Lambert 2003-03-04