| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Denmark | 3 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Basic communication technologies | |
| #4 | Control |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Unspecified technologies | |
| #3 | Pulse technique | |
| #4 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nelsen Marvin G | 3 |
| #2 | Warren Wright William | 2 |
| #3 | Marvin Nelsen | 1 |
| #4 | Thedore Obszarny | 1 |
| #5 | Post Oflice Roselle | 1 |
| #6 | Hooffman Estates | 1 |
| #7 | Orest Hrynewycz | 1 |
| #8 | Louis Collette Richard | 1 |
| #9 | Baker Edward G | 1 |
| #10 | Kral Fred G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3295078A | Relay | |
| US3180954A | Hot wire relay | |
| US3085139A | Printed circuit mounting means for switch blades | |
| US2921151A | Presettable automatic timing device | |
| GB648851A | Preselector | |
| US2274992A | Electrical timing circuit | |
| US2290489A | Relay | |
| US2226070A | Time delay relay | |
| US2208225A | Relay |