| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | WIPO (World Intellectual Property Organization) | 6 | |
| #3 | EPO (European Patent Office) | 5 | |
| #4 | Canada | 4 | |
| #5 | China | 3 | |
| #6 | Australia | 2 | |
| #7 | Netherlands | 2 | |
| #8 | Germany | 1 | |
| #9 | France | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | India | 1 | |
| #12 | Japan | 1 | |
| #13 | Republic of Korea | 1 | |
| #14 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Consumer goods | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Digital networks | |
| #6 | Computer technology | |
| #7 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Sound-producing devices | |
| #3 | Frames | |
| #4 | Shafts | |
| #5 | Unspecified technologies | |
| #6 | Dry-cleaning fibers | |
| #7 | Digital information transmission | |
| #8 | Electric digital data processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Button Douglas J | 16 |
| #2 | Hyde Ralph E | 5 |
| #3 | Salvatti Alex V | 5 |
| #4 | Fischer Roy K | 4 |
| #5 | Williamson Clayton C | 4 |
| #6 | Keele D Broadus Jr | 3 |
| #7 | Ashcraft Daniel W | 1 |
| #8 | Benedict Robert H | 1 |
| #9 | Romeo Steve G | 1 |
| #10 | Keele D Broadus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6990208B1 | Vehicle sound system | |
| WO0005925A1 | Miniature full range loudspeaker | |
| CA2324394A1 | Shorting rings in dual-coil dual-gap loudspeaker drivers | |
| US5828767A | Inductive braking in a dual coil speaker driver unit | |
| US5704578A | Front-locking swivel ball loudspeaker mount | |
| US5533132A | Loudspeaker thermal management structure | |
| US5664023A | Low TCR wire in high power audio coils | |
| US5455396A | Temperature/environment-resistant transducer suspension | |
| US5117462A | Phasing plug for compression driver | |
| US5143339A | Speaker mounting assembly | |
| WO9105447A1 | Improved electrodynamic loudspeaker | |
| US4655316A | Acoustic diaphragm | |
| US4580655A | Defined coverage loudspeaker horn |