| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Cryptography | |
| #2 | Resistors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Burke Charles G | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1086586A | Code-forming device. | |
| CA84176A | Wireless telegraphy | |
| US744041A | Telegraphic code. | |
| US737072A | Wireless telegraphy. | |
| CA74070A | Telegraphic code | |
| CA59553A | Electric telegraph system and apparatus therefor | |
| CA19430A | Telegraphic system | |
| CA28906A | Telegraphic instrument | |
| CA32975A | Telegraphic instrument | |
| CA12989A | Improvements on the mariner's compass | |
| CA13013A | Improvement in alphabet and system of writing in cipher |