Inventor
Joel A. BUTLER
Inventor
US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers15%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers15%
H04SStereophonic systems15%
H05BElectric heating15%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%
H03GControl of amplification12%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications12%
G10LSpeech analysis techniques or speech synthesis3%
LOC143%
PatentTitleYear
D1043610Speaker202411,882,421Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply202411,689,860Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply202311,601,759Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply202311,418,109Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply202211,290,819Distributed amplification and control system for immersive audio multi-channel amplifier2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2024Patents assigned to DOLBY LABORATORIES LICENSING CORP (6)· patent assignee history
2022–2024Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOLBY LABORATORIES LICENSING CORP | 6 | 2022–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 6 | 2022–2024 |