| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Australia | 3 | |
| #3 | Germany | 2 | |
| #4 | Canada | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Control | |
| #4 | Audio-visual technology | |
| #5 | Telecommunications |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hauptmann Eric A | 9 |
| #2 | Chana Maghar S | 5 |
| #3 | Pressman Barry M | 3 |
| #4 | Harris Ben A | 2 |
| #5 | Clarridge Chester H | 2 |
| #6 | Kraley Raymond L | 2 |
| #7 | Hollands Daniel H | 1 |
| #8 | Hauptmann E | 1 |
| #9 | Kraley R | 1 |
| #10 | Martin Joseph A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5691628A | Regulation of current or voltage with PWM controller | |
| US4437059A | Wattmeter | |
| US3959786A | Isolated two-wire transmitter | |
| US4030014A | Current-to-current electrical isolator | |
| US4001797A | Annunciator system with direct field wiring | |
| US3959724A | Electronic wattmeter | |
| US3603986A | Events recorder | |
| US3471749A | System for controlling automatic reclosure of a power circuit breaker | |
| US3383672A | Set point module system for annunciators |