Welsh; Christopher T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Welsh; Christopher T..The latest application filed is for "earphone for wideband communication".
- Welsh; Christopher T. - Fishers IN
- Welsh; Christopher T. - Noblesville IN
| Patent | Date |
|---|---|
| Earphone for wideband communication Grant 8,300,871 - Welsh , et al. October 30, 2 | 2012-10-30 |
| Microphone system for communication devices Grant 7,751,575 - Baumhauer, Jr. , et al. July 6, 2 | 2010-07-06 |
| Earphone For Wideband Communication App 20090116676 - Welsh; Christopher T. ; et al. | 2009-05-07 |
| Speaker mounting system Grant 5,739,481 - Baumhauer, Jr. , et al. April 14, 1 | 1998-04-14 |
| Portable loudspeaker/directional microphone peripheral Grant 5,696,359 - Marcus , et al. December 9, 1 | 1997-12-09 |
| Directional microphone Grant D381,024 - Hinzmann , et al. July 15, 1 | 1997-07-15 |
| Directional microphone system Grant 5,506,908 - Baumhauer, Jr. , et al. April 9, 1 | 1996-04-09 |
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