Inventor
JOHN C. HEINE
Inventor
US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Kprimary
G10KSound-producing devices25%
H04KSecret communication25%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers25%
H04SStereophonic systems25%
PatentTitleYear
11,700,483Sound masking system2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023Patents assigned to CAMBRIDGE SOUND MAN INC (1)· patent assignee history
2023Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CAMBRIDGE SOUND MAN INC | 1 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 1 | 2023 |