Marcus; Larry Allen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Marcus; Larry Allen.The latest application filed is for "telephone handset coupling system".
- Marcus; Larry Allen - Fishers IN
- Marcus; Larry Allen - Hamilton County IN
| Patent | Date |
|---|---|
| Telephone handset coupling system Grant 7,646,865 - Welsh , et al. January 12, 2 | 2010-01-12 |
| Telephone handset coupling system App 20080292066 - Welsh; Christopher Todd ; et al. | 2008-11-27 |
| Microphone Isolation System App 20070126164 - Baumhauer; John C. JR. ; et al. | 2007-06-07 |
| Microphone isolation system Grant 7,182,324 - Baumhauer, Jr. , et al. February 27, 2 | 2007-02-27 |
| Microphone isolation system App 20030197316 - Baumhauer, John C. JR. ; et al. | 2003-10-23 |
| Communication device having a microphone system with optimal acoustic transmission line design for improved frequency and directional response App 20030008676 - Baumhauer, John Charles JR. ; et al. | 2003-01-09 |
| Methods And Apparatus For Controlling The Output Of Moving Armature Transducers App 20010012371 - BAUMHAUER, JOHN CHARLES JR. ; et al. | 2001-08-09 |
| Active noise control earpiece being compatible with magnetic coupled hearing aids Grant 5,740,257 - Marcus April 14, 1 | 1998-04-14 |
| Portable loudspeaker/directional microphone peripheral Grant 5,696,359 - Marcus , et al. December 9, 1 | 1997-12-09 |
| Noise canceling gradient microphone assembly Grant 5,651,074 - Baumhauer, Jr. , et al. July 22, 1 | 1997-07-22 |
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