Popenoe; Charles H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Popenoe; Charles H..The latest application filed is for "fastening apparatus and method of making".
- Popenoe; Charles H. - Bethesda MD
| Patent | Date |
|---|---|
| Method of making a fastening device for visually indicating tension Grant 7,958,614 - Popenoe June 14, 2 | 2011-06-14 |
| Fastening Apparatus And Method Of Making App 20090092457 - Popenoe; Charles H. | 2009-04-09 |
| Fluid pressure indicator Grant 5,189,979 - Popenoe March 2, 1 | 1993-03-02 |
| Radio-frequency tuned-circuit microdisplacement transducer Grant RE30,183 - Popenoe January 8, 1 | 1980-01-08 |
| Radio-frequency tuned-circuit microdisplacement transducer Grant 4,114,428 - Popenoe September 19, 1 | 1978-09-19 |
| Light reflective opti-mechanical displacement microindicator Grant 3,987,668 - Popenoe October 26, 1 | 1976-10-26 |
| Opti-mechanical displacement microindicator Grant 3,987,699 - Popenoe October 26, 1 | 1976-10-26 |
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