| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | Norway | 2 | |
| #4 | New Zealand | 2 | |
| #5 | United States | 2 | |
| #6 | Brazil | 1 | |
| #7 | China | 1 | |
| #8 | Singapore | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials | |
| #2 | Representation of music |
| # | Name | Total Patents |
|---|---|---|
| #1 | Papadopoulos Marios Gabriel | 10 |
| #2 | Papadopoulos Marios G | 2 |
| #3 | Papadopoulos M G | 1 |
| #4 | Gabriel Marios | 1 |
| #5 | Papadopoulos | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5824931A | Electronic information aid | |
| US6031172A | Music teaching aid | |
| NZ262207A | Electronic music scales learning aid | |
| CA2142909A1 | Electronic information aid | |
| BR9306536A | Auxiliary device for teaching music | |
| NZ253353A | Music teaching aid: coloured coded segmented rings mounted coaxially with note indications |