Inventor
Dengfeng Cao
Inventor
Nanshan District, CN
Overview
Patents· 1 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 transducers100%
PatentTitleYear
9,609,406'Speaker system'2017Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017Patents assigned to Puma SE (1)· patent assignee history
2017Based in Nanshan District, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| Puma SE | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nanshan District, CN | 1 | 2017 |