Helge Stray

Follow

Person

Hagan, NO

People

Patents Grantslast 30 patents

Information Patent Grant
Alkoxyphenyl carboxylic acid tracers
- Patent number 10,954,428
- Issue date Mar 23, 2021
- Restrack AS
- Helge Stray
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Tracers
- Patent number 9,856,732
- Issue date Jan 2, 2018
- Restrack AS
- Beata Krognes Jessheim
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Use of biphenyl, terphenyl, and fluorene sulphonic acid based trace...
- Patent number 8,895,484
- Issue date Nov 25, 2014
- Restrack AS
- Helge Stray
- G01 - MEASURING TESTING
Information Patent Grant
System for delivery of a tracer in fluid transport systems and use...
- Patent number 7,560,690
- Issue date Jul 14, 2009
- Resman AS
- Helge Stray
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Alkoxyphenyl Carboxylic Acid Tracers
- Publication number 20180030331
- Publication date Feb 1, 2018
- RESTRACK AS
- Helge Stray
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Mineral-Encapsulated Tracers
- Publication number 20160272882
- Publication date Sep 22, 2016
- INSTITUTT FOR ENERGITEKNIKK
- Helge Stray
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Tracers
- Publication number 20160003040
- Publication date Jan 7, 2016
- RESTRACK AS
- Beata Krognes Jessheim
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
The Use of Biphenyl, Terphenyl, and Fluorene Sulphonic Acid Based T...
- Publication number 20100016181
- Publication date Jan 21, 2010
- Helge Stray
- G01 - MEASURING TESTING
Information Patent Application
System for Delivery of a Tracer in Fluid Transport Systems and Use...
- Publication number 20070241277
- Publication date Oct 18, 2007
- Helge Stray
- E21 - EARTH DRILLING MINING