| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 19 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Control | |
| #3 | Telecommunications | |
| #4 | Electrical machinery and energy | |
| #5 | Textiles and paper | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Games | |
| #2 | Bowling games | |
| #3 | Coin-freed | |
| #4 | Telephonic communication | |
| #5 | Unspecified technologies | |
| #6 | Photographic composing devices | |
| #7 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Williams Harry E | 19 |
| #2 | Durant Lyndon A | 13 |
| #3 | Williams Raymond L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2924909A | Coin controlled puppet apparatus | |
| US2811584A | Automatic alarm system | |
| US2651464A | Score registering device | |
| US2459011A | Amusement game apparatus | |
| US2317506A | Accessory for game apparatus | |
| US2330771A | Contact switch for ball rolling games | |
| US2296549A | Impulse control | |
| US2296548A | Universal impulse unit | |
| US2240276A | Novelty score indicator | |
| US2266932A | High score recorder | |
| US2276813A | Amusement apparatus control circuit | |
| US2245949A | Ball projector | |
| US2226885A | Game apparatus | |
| US2184868A | Bumper switch | |
| US2222097A | Combined bumper and lamp guard | |
| US2209589A | Ball switch and bumper | |
| US2184867A | Game apparatus | |
| US2044268A | Amusement apparatus | |
| US1886772A | Matrix assembly for typesetting machines |