| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | United States | 4 | |
| #3 | Austria | 1 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electromechanical clocks | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Batteries | |
| #4 | Measuring electric variables | |
| #5 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | O'Keenan Charles Edouard | 12 |
| Publication | Filing date | Title |
|---|---|---|
| GB191402924A | Improved System of Synchronising Electric Clocks. | |
| US1218692A | Clock. | |
| GB191323570A | Improvements in Synchronised Electrically Controlled Clocks. | |
| GB191101052A | Driving by Friction. | |
| US1171533A | Driving means for clocks. | |
| CA65031A | Electric meter | |
| US641140A | Electricity-meter. | |
| GB189808832A | Improvements in Electricity Meters. | |
| US655368A | Electrical battery. | |
| GB189627167A | Improvements in Electrical Batteries. |