Mark SHEEHAN

Follow

Person

Edmonton, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Adjustable-length bail extension
- Patent number 10,982,711
- Issue date Apr 20, 2021
- Noetic Technologies Inc.
- Maurice William Slack
- E21 - EARTH DRILLING MINING
Information Patent Grant
Impact-driven downhole motors
- Patent number 10,590,705
- Issue date Mar 17, 2020
- Dreco Energy Services ULC
- Mark Sheehan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for adjusting spring preload in a downhole tool
- Patent number 8,783,354
- Issue date Jul 22, 2014
- National-Oilwell Varco, L.P.
- Mark Sheehan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
ADJUSTABLE-LENGTH BAIL EXTENSION
- Publication number 20200056649
- Publication date Feb 20, 2020
- NOETIC TECHNOLOGIES INC.
- Maurice William SLACK
- E21 - EARTH DRILLING MINING
Information Patent Application
IMPACT-DRIVEN DOWNHOLE MOTORS
- Publication number 20180119491
- Publication date May 3, 2018
- DRECO ENERGY SERVICES ULC
- Mark SHEEHAN
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHOD FOR ADJUSTING SPRING PRELOAD IN A DOWNHOLE TOOL
- Publication number 20120118641
- Publication date May 17, 2012
- National-Oilwell Varco, L.P.
- Mark SHEEHAN
- E21 - EARTH DRILLING MINING