Inventor · disambiguated record
Craig Knull
Also filed as: KNULL CRAIG · KNULL CRAIG J
6 granted patents·159 citations·filing 2000–2012
82Inventor score
Top patents by PatentIndex Score
6 records- 0190US6571888B2Apparatus and method for directional drilling with coiled tubingPREC DRILLING TECH SERV GROUP·Filed 2001·Granted Jun 3, 2003·121 cites·17 claims
- 0281US8881848B2Fixed cutter drill bit with rotating cutter discKNULL CRAIG·Filed 2012·Granted Nov 11, 2014·14 cites·16 claims
- 0373US8851204B2Mud motor with integrated percussion tool and drill bitKNULL CRAIG·Filed 2012·Granted Oct 7, 2014·3 cites·12 claims
- 0453US9038752B2Rotary drag bitKNULL CRAIG·Filed 2011·Granted May 26, 2015·1 cites·16 claims
- 0548US6742609B2Rotational impact drill assemblyUNITED DIAMOND LTD·Filed 2001·Granted Jun 1, 2004·19 cites·25 claims
- 0637US6330912B1Pack-off bushingHALLIBURTON ENERGY SERV INC·Filed 2000·Granted Dec 18, 2001·1 cites·24 claims
Join the waitlist — get patent alerts
Get an alert when Craig Knull files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →