Helgeson; Norman L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helgeson; Norman L..The latest application filed is for "noise attenuation device for reducing noise attenuation in a jet engine test cell".
- Helgeson; Norman L. - Pacific Palisades CA
- Helgeson; Norman L. - Pasadena CA
| Patent | Date |
|---|---|
| Noise attenuation device for reducing jet engine noise during testing Grant 7,918,310 - Helgeson , et al. April 5, 2 | 2011-04-05 |
| Noise Attenuation Device For Reducing Noise Attenuation In A Jet Engine Test Cell App 20110048847 - Helgeson; Norman L. ; et al. | 2011-03-03 |
| Fresh water production from power plant waste heat Grant 4,391,102 - Studhalter , et al. July 5, 1 | 1983-07-05 |
| Petroleum oil desulfurization process Grant 3,919,402 - Guth , et al. November 11, 1 | 1975-11-11 |
| NCAGE Code | 5NRN6 | HELGESON, NORMAN L DBA HELGESON CONS!ULTING |
| CAGE Code | 5NRN6 | HELGESON, NORMAN L HELGESON CONSULTING |
| DUNS | 831701052 | HELGESON, NORMAN L |
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