Speaker with batched cones
US-12413883-B2 · Sep 9, 2025 · US
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Pfeffer Andreas Helmut patents
Pfeffer Andreas Helmut is listed as an inventor on 7 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pfeffer Andreas Helmut |
| Total patents | 7 |
| First publication | Mar 30, 2023 |
| Latest publication | Sep 9, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Loudspeaker
US-12395786-B2 · Aug 19, 2025 · US
Loudspeaker
US-12250531-B2 · Mar 11, 2025 · US
Speaker with batched cones
US-2025024182-A1 · Jan 16, 2025 · US
Loudspeaker
US-2023217156-A1 · Jul 6, 2023 · US
Loudspeaker
US-2023188898-A1 · Jun 15, 2023 · US
Loudspeaker
US-2023097602-A1 · Mar 30, 2023 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Harman Becker Automotive Systems Gmbh | 7 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H04R9/06 | 7 |
| H04R2400/11 | 5 |
| H04R9/043 | 5 |
| H04R1/025 | 4 |
| H04R9/025 | 3 |