| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Canada | 3 | |
| #4 | United States | 3 | |
| #5 | Republic of Korea | 2 | |
| #6 | Australia | 1 | |
| #7 | Czechoslovakia | 1 | |
| #8 | Finland | 1 | |
| #9 | Ireland | 1 | |
| #10 | Norway | 1 | |
| #11 | Poland | 1 | |
| #12 | Portugal | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Stringed musical instruments | |
| #2 | Special designs |
| # | Name | Total Patents |
|---|---|---|
| #1 | Calabrese Salvadore J | 10 |
| #2 | Scarton Henry A | 10 |
| #3 | Dinc Saim | 9 |
| #4 | Jlidi Bessem | 9 |
| #5 | Ettles Christopher M | 9 |
| #6 | Kennedy Warren C | 8 |
| #7 | Murray S Frank | 7 |
| #8 | Strong William Y | 7 |
| #9 | Lombino James M | 4 |
| #10 | Esu Furanku Maaree | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5511454A | Piano escapement action | |
| US5265515A | Key covers formed of ivory substitute and pianos having same | |
| EP0398519A2 | Piano forte hammer and method for making same |