Ronald George Minshull

Follow

Person

Calgary, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Self actuating underreamer
- Patent number 7,730,974
- Issue date Jun 8, 2010
- Ronald George Minshull
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Self Actuating Underreamer
- Publication number 20080251294
- Publication date Oct 16, 2008
- Ronald George Minshull
- E21 - EARTH DRILLING MINING
Information Patent Application
Device for simulataneously casing a hole while drilling
- Publication number 20050230153
- Publication date Oct 20, 2005
- Ronald G. Minshull
- E21 - EARTH DRILLING MINING