| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Mechanically-driven clocks | |
| #3 | Unspecified technologies | |
| #4 | Spring or inertia motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | George Willens | 10 |
| Publication | Filing date | Title |
|---|---|---|
| US2444392A | Three-dimensional time indicator clock | |
| GB479615A | Improvements in display devices | |
| US2057465A | Display device | |
| US1898924A | Drum for advertising clocks | |
| US1888366A | Advertising clock | |
| US1852869A | Advertising clock | |
| US1846929A | Advertising clock | |
| US1846928A | Combination clock and sign | |
| US1711296A | Stereopticon clock | |
| US1656029A | Advertising device | |
| US1496572A | Spring motor |