| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Machines | |
| #3 | Audio-visual technology | |
| #4 | Computer technology | |
| #5 | Optics | |
| #6 | Machine tools | |
| #7 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Ticket-issuing devices | |
| #2 | Unspecified technologies | |
| #3 | Cutting | |
| #4 | Advertising | |
| #5 | Coin-freed | |
| #6 | Cameras | |
| #7 | Money sorting | |
| #8 | Unspecified technologies | |
| #9 | Vehicle wheels | |
| #10 | Counting mechanisms |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnson Jay M | 14 |
| #2 | De Hart William Arthur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2403373A | Can opener | |
| US2327270A | Display device | |
| US1918915A | Fare register | |
| US1359994A | Weight-motor | |
| US1276074A | Driving mechanism. | |
| US1241632A | Coin-holder for coin-counting machines. | |
| US1253980A | Ticket-canceling and coin fare-box. | |
| CA157736A | Fare register | |
| US1116435A | Coin-receiver for fare-boxes. | |
| US1145313A | Commutation or multiple-ride ticket collector. | |
| US1096172A | Coin-counting mechanism. | |
| US1096171A | Coin assorter and counter for street-cars and other purposes. | |
| US1036633A | Wheel. | |
| US894506A | Automatic registering and counting machine. | |
| CA278229A | Link for tire chains |