| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Electrical machinery and energy | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Operating tables | |
| #2 | Chairs and beds | |
| #3 | Special electric heating or lighting | |
| #4 | Distribution of electric power | |
| #5 | Electric motor controls | |
| #6 | Servomotors | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Case Frank E | 9 |
| #2 | Monnot Edward L | 3 |
| #3 | William Gowie | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1805291A | Combined heater and illuminator | |
| US1872444A | Auxiliary foot rest | |
| US1796097A | Electrical distributing and control apparatus for dental instruments and the like | |
| US1787510A | Auxiliary foot rest | |
| US1828470A | Auxiliary foot rest | |
| US1551730A | Dental chair | |
| US1654787A | Arm rest | |
| US1548348A | Headrest | |
| US1530480A | Foot rest | |
| US1509542A | Dental chair | |
| US1173557A | Dental chair. | |
| US915016A | Electric controller. | |
| US910357A | Dental chair. |