| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 40 | |
| #2 | Switzerland | 6 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement | |
| #4 | Machines | |
| #5 | Medical technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Adolph Bunblasky | 7 |
| #2 | Nathaniel Silver | 6 |
| #3 | Henrich William H | 5 |
| #4 | Helterline Jr Leo L | 5 |
| #5 | Levy Jr Ernest | 4 |
| #6 | Company Incorporated Sorensen | 4 |
| #7 | Victor Wouk | 3 |
| #8 | Kohn Samuel T | 3 |
| #9 | Scherer Bernard L | 3 |
| #10 | Comins James S | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2968757A | Single phase to three phase converter | |
| US2973470A | Voltage regulator | |
| US2967271A | Voltage regulator | |
| US2939067A | Measuring circuits | |
| US2914721A | Voltage regulator | |
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| US2753514A | Voltage regulator | |
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