Inventor
Martin Lenhardt
Inventor
Hayes, VA, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers57%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing29%
A61BDiagnosis14%
PatentTitleYear
8,189,839'Hearing device improvements using modulation of acoustically coupled signals at middle ear resonance'20128,172,769'Method and apparatus for monitoring intra ocular and intra cranial pressure'20128,111,860'Recreational bone conduction audio device, system'20127,616,771'Acoustic coupler for skin contact hearing enhancement devices'20097,310,427'Recreational bone conduction audio device, system'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2012Patents assigned to UNIV VIRGINIA COMMONWEALTH (5)· patent assignee history
2007–2012Based in Hayes, VA, US· patent location history
2012Patents assigned to LENHARDT MARTIN (2)· patent assignee history
2012Patents assigned to LENHARDT MARTIN M (1)· patent assignee history
2012Patents assigned to RETCHIN SHELDON M (1)· patent assignee history
2012Patents assigned to RICHARDS DOUGLAS (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV VIRGINIA COMMONWEALTH | 5 | 2007–2012 |
| LENHARDT MARTINself | 2 | 2012 |
| LENHARDT MARTIN Mself | 1 | 2012 |
| RETCHIN SHELDON M | 1 | 2012 |
| RICHARDS DOUGLAS | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hayes, Virginia, US | 5 | 2007–2012 |