Inventor
Marc D. Radcliffe
Inventor
Newport, MN, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C04Bprimary
C04BLime, magnesia50%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers50%
PatentTitleYear
10,669,211Acoustically active articles2020Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2020Patents assigned to 3M INNOVATIVE PROPERTIES CO (1)· patent assignee history
2020Patents assigned to 3M INNOVATIVE PROPERTIES COMPNAY (1)· patent assignee history
2020Based in Newport, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 1 | 2020 |
| 3M INNOVATIVE PROPERTIES COMPNAY | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Newport, Minnesota, US | 1 | 2020 |