| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Canada | 2 | |
| #3 | Republic of Korea | 2 | |
| #4 | China | 1 | |
| #5 | EAPO (Eurasian Patent Organization) | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Singapore | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Stereophonic systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zhang Fan | 12 |
| Publication | Filing date | Title |
|---|---|---|
| CN101971645A | Inner magnetic transducer with multiple magnectic gaps and multiple coils and preparation method thereof | |
| CA2740520A1 | Multimedia acoustics system having audio frequency digital interface | |
| KR20110097771A | Multimedia acoustics system having audio frequency digital interface |