Inventor
Robert Charles Chanaud
Inventor
Boulder, CO, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Kprimary
G10KSound-producing devices33%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers33%
G08BSignalling systems, e.g. personal calling systems17%
H04KSecret communication17%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1978Patents assigned to CHANAUD ROBERT CHARLES (2)· patent assignee history
1977–1978Patents assigned to MCGREGOR HOWARD NORMAN (2)· patent assignee history
1977–1978Based in Boulder, CO, US· patent location history
1998Patents assigned to LARSON DAVIS INC (1)· patent assignee history
1998Based in Orem, UT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHANAUD ROBERT CHARLESself | 2 | 1977–1978 |
| MCGREGOR HOWARD NORMAN | 2 | 1977–1978 |
| LARSON DAVIS INC | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Boulder, CO, US | 2 | 1977–1978 |
| Orem, UT, US | 1 | 1998 |