Stray; Helge
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stray; Helge.The latest application filed is for "alkoxyphenyl carboxylic acid tracers".
- Stray; Helge - Kjeller NO
- Stray; Helge - Hagan NO
| Patent | Date |
|---|---|
| Alkoxyphenyl carboxylic acid tracers Grant 10,954,428 - Stray March 23, 2 | 2021-03-23 |
| Alkoxyphenyl Carboxylic Acid Tracers App 20180030331 - Stray; Helge | 2018-02-01 |
| Tracers Grant 9,856,732 - Jessheim , et al. January 2, 2 | 2018-01-02 |
| Mineral-Encapsulated Tracers App 20160272882 - Stray; Helge ; et al. | 2016-09-22 |
| Tracers App 20160003040 - Jessheim; Beata Krognes ; et al. | 2016-01-07 |
| Use of biphenyl, terphenyl, and fluorene sulphonic acid based tracers for monitoring streams of fluids Grant 8,895,484 - Stray November 25, 2 | 2014-11-25 |
| The Use of Biphenyl, Terphenyl, and Fluorene Sulphonic Acid Based Tracers for Monitoring Streams of Fluid App 20100016181 - Stray; Helge | 2010-01-21 |
| System for delivery of a tracer in fluid transport systems and use thereof Grant 7,560,690 - Stray , et al. July 14, 2 | 2009-07-14 |
| System for Delivery of a Tracer in Fluid Transport Systems and Use Thereof App 20070241277 - Stray; Helge ; et al. | 2007-10-18 |
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