Semcken; Kevin R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Semcken; Kevin R..The latest application filed is for "single chamber headphone apparatus".
- Semcken; Kevin R. - Evergreen CO
Trademarks
| Patent | Date |
|---|---|
| System and method of improving audio signals for the hearing impaired Grant 8,712,067 - Semcken April 29, 2 | 2014-04-29 |
| Single Chamber Headphone Apparatus App 20140086429 - Semcken; Kevin R. | 2014-03-27 |
| Single Chamber headphone apparatus Grant 8,605,932 - Semcken December 10, 2 | 2013-12-10 |
| Method and apparatus for modifying an audio signal Grant 8,462,975 - Semcken , et al. June 11, 2 | 2013-06-11 |
| Wireless Audio System App 20110110529 - Semcken; Kevin R. | 2011-05-12 |
| Method And Apparatus For Modifying An Audio Signal App 20100316240 - Semcken; Kevin R. ; et al. | 2010-12-16 |
| Headphone Apparatus App 20100310093 - Semcken; Kevin R. | 2010-12-09 |
| System And Method Of Improving Audio Signals For The Hearing Impaired App 20100303249 - Semcken; Kevin R. | 2010-12-02 |
| Head set Grant D606,969 - Semcken December 29, 2 | 2009-12-29 |
| Head set Grant D606,970 - Semcken December 29, 2 | 2009-12-29 |
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