| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Automatic musical instruments | |
| #2 | Stringed musical instruments | |
| #3 | Wind musical instruments | |
| #4 | Office furniture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gulbransen Axel G | 8 |
| #2 | Lloyd Loar | 4 |
| #3 | Forsberg Gustav A | 2 |
| #4 | Ketterman Sylvan K | 2 |
| #5 | Christian Gulbransen | 2 |
| #6 | Boettcher Arthur H | 2 |
| #7 | Dommelen Peter Van | 1 |
| #8 | Morris William L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2292525A | Phonograph record cabinet | |
| US2269942A | Electric organ | |
| US2094197A | Piano | |
| US1821977A | Piano | |
| US1821978A | Piano | |
| US1815265A | Piano bridge | |
| US1798212A | Piano | |
| US1803502A | Pedal construction and mounting | |
| US1799365A | Player piano | |
| US1750261A | Expression-control device | |
| US1788561A | Player piano | |
| US1745850A | Player piano | |
| US1686153A | Player piano | |
| US1623968A | Reproduction of music | |
| US1708502A | Player piano | |
| US1558606A | Player piano | |
| US1599522A | Player piano | |
| US1681338A | Valve for player pianos | |
| US1630177A | Player piano | |
| US1563977A | Player piano |