| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 46 | |
| #2 | Canada | 6 | |
| #3 | United Kingdom | 6 | |
| #4 | Austria | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Mechanical elements | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Unspecified technologies | |
| #3 | Circuits for supplying electric power | |
| #4 | Shafts | |
| #5 | Dynamo-electric machines | |
| #6 | Office furniture | |
| #7 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duncan Thomas | 59 |
| Publication | Filing date | Title |
|---|---|---|
| GB9623305D0 | Woodworking tool | |
| CA92129A | Process of making commutators | |
| CA92128A | Electric meter | |
| CA92126A | Electric meter | |
| CA92127A | Electric meter | |
| US796070A | Three-wire meter. | |
| GB190419580A | Improvements in Electric Meters. | |
| US796069A | Electric meter. | |
| CA97282A | Motor meter | |
| US817305A | Electric meter. | |
| US768934A | Metering system. | |
| US796067A | Electric meter. | |
| US796068A | Electric meter. | |
| US796066A | Electric meter. | |
| US796065A | Meter. | |
| US796064A | Automatic switch for storage batteries. | |
| US796059A | Meter. | |
| US796062A | Meter. | |
| US796060A | Electric meter. | |
| US796058A | Meter. |