| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Control | |
| #4 | Telecommunications | |
| #5 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Unspecified technologies | |
| #3 | Registering devices | |
| #4 | Magnets and transformers | |
| #5 | Telephonic communication | |
| #6 | Counting mechanisms | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jeffrey Max L | 9 |
| #2 | Sanborn Jr Frederick D | 3 |
| #3 | Eickhoff Theodore H | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2368926A | Submergible switch | |
| US2239267A | Electromagnet | |
| US2181829A | Circuit breaker | |
| US2294559A | Switch | |
| US2169477A | Electromagnetic circuit breaker | |
| US1969926A | Dial and switch mechanism | |
| US1989277A | Switch construction | |
| US2019051A | Contacting device | |
| US2017474A | Locking device | |
| US2035891A | Resetting device for counters | |
| US1838836A | Electromagnet |