John R. Jansen

Follow

Person

West Bend, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Horizontal bore cryogenic drilling method
- Patent number 7,000,711
- Issue date Feb 21, 2006
- CH2M Hill, Inc.
- Thomas J. Miller
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for improved water well production
- Patent number 5,579,845
- Issue date Dec 3, 1996
- Frazier; William C.
- John R. Jansen
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Horizontal bore cryogenic drilling method
- Publication number 20050173156
- Publication date Aug 11, 2005
- CH2M HILL, Inc.
- Thomas J. Miller
- E21 - EARTH DRILLING MINING