Riel; Frank J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Riel; Frank J..The latest application filed is for "method of manufacture of noise suppression panel".
- Riel; Frank J. - San Diego CA
| Patent | Date |
|---|---|
| Method of manufacture of noise suppression panel Grant 4,541,879 - Riel September 17, 1 | 1985-09-17 |
| Noise suppression panel Grant 4,465,725 - Riel August 14, 1 | 1984-08-14 |
| Sound attenuation sandwich panel including barrier material for corrosion control Grant 4,433,021 - Riel February 21, 1 | 1984-02-21 |
| Honeycomb noise attenuating structures Grant 4,384,020 - Beggs , et al. May 17, 1 | 1983-05-17 |
| Honeycomb noise attenuation structure Grant 4,379,191 - Beggs , et al. April 5, 1 | 1983-04-05 |
| Double layer attenuation panel Grant 4,318,453 - Rose , et al. March 9, 1 | 1982-03-09 |
| Double layer attenuation panel with two layers of linear type material Grant 4,294,329 - Rose , et al. October 13, 1 | 1981-10-13 |
| Method of manufacture of honeycomb noise attenuation structure and the resulting structure produced thereby Grant 4,254,171 - Beggs , et al. March 3, 1 | 1981-03-03 |
| Corrosion Resistant Adhesive Bonding System Grant 3,855,044 - Riel December 17, 1 | 1974-12-17 |
| Method Of Making A Ribbed Panel Grant 3,747,197 - Riel July 24, 1 | 1973-07-24 |
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