| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machine tools | |
| #3 | Civil engineering | |
| #4 | Telecommunications | |
| #5 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mclaughlin William E | 10 |
| #2 | Denny Charles W | 5 |
| #3 | George Helwig | 3 |
| #4 | Earle Myers Clarence | 1 |
| #5 | Fallows Albert N | 1 |
| #6 | Barkelew Charles S | 1 |
| #7 | Denny Mark E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR1496672A | Electric switch | |
| FR1413844A | Electric switch | |
| US3236981A | By-pass switch with pivoted contacts and arc prevention apparatus | |
| US1933244A | School traffic gate | |
| US1774030A | Pneumatic screw driver | |
| US1649480A | Electric switch | |
| US1674052A | Dimming apparatus | |
| US1670517A | Dimming apparatus for headlights of automobiles | |
| US1723745A | Dimming apparatus | |
| US1596673A | Detachable phone tip | |
| US1561597A | Radio apparatus | |
| US1574958A | Radio apparatus | |
| US1541798A | Radiophone plug | |
| US1553711A | Multiple-phone binding post | |
| US1565263A | Radio phone plug | |
| US920032A | Electric switch. | |
| US822237A | Electric switch. |