| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Telecommunications | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Electric switches | |
| #3 | Special electric heating or lighting | |
| #4 | Transmission | |
| #5 | AC and DC conversion devices | |
| #6 | Resistors | |
| #7 | Measuring light |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcilvaine Oran T | 17 |
| #2 | John Raus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2129855A | Relay | |
| US2152321A | Electronic tube and apparatus employing same | |
| US2066894A | Relay | |
| US2015431A | Photometric device | |
| US2060584A | Electric light | |
| US2040753A | Electric ray producing device | |
| US2040752A | Vacuum tube | |
| US2016172A | Gaseous discharge apparatus | |
| US1969658A | Thermionic tube | |
| US1946354A | Rectifier tube | |
| US1821442A | Apparatus for producing light waves | |
| US1993108A | Vacuum tube | |
| US1851440A | Radio reception apparatus | |
| US1826673A | Resistance apparatus | |
| US1837566A | Thermionic tube | |
| US1853914A | Thermionic tube | |
| CA346012A | Radio reception apparatus | |
| CA348870A | Rectifier tube |