JM

John Misselbrook

BS Bj Services: 3 patents #2 of 41Top 5%
Overall (2004): #26,614 of 270,089Top 10%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6834722 Cyclic check valve for coiled tubing Lubos Vacik, John Ravensbergen 2004-12-28
6832655 Method for cleaning gravel packs John Ravensbergen, Lance Portman 2004-12-21
6712150 Partial coil-in-coil tubing Richard A. Altman, William Gavin, Alexander R. Crabtree 2004-03-30