Inventor

KNULL CRAIG J

CA2 patents

⚠️ This page may combine multiple inventors who share the name “KNULL CRAIG J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PREC DRILLING TECH SERV GROUP

1 patent

US6571888B2Jun 3, 2003

Apparatus and method for directional drilling with coiled tubing

PREC DRILLING TECH SERV GROUP121 citations94

UNITED DIAMOND LTD

1 patent

US6742609B2Jun 1, 2004

Rotational impact drill assembly

UNITED DIAMOND LTD19 citations81