| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement | |
| #4 | Control | |
| #5 | Machines | |
| #6 | Thermal processes | |
| #7 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Sound-producing devices | |
| #2 | Electromechanical clocks | |
| #3 | Alarm systems | |
| #4 | Electric switches | |
| #5 | Unspecified technologies | |
| #6 | Electrically-conductive connections | |
| #7 | Domestic stoves | |
| #8 | Kitchen equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stern Lewis J | 4 |
| #2 | Reck Peter C | 3 |
| #3 | Von Voigtlander Frederick | 3 |
| #4 | Slocum Charles W | 2 |
| #5 | Panzenhagen Leonhard R | 1 |
| #6 | Cattell Clifford C | 1 |
| #7 | Hughes James A | 1 |
| #8 | Hugh Rumler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2838629A | Remotely controlled button switch | |
| US2838749A | In-and-out register and paging system | |
| US2767009A | Connecting device | |
| US2682654A | Hospital service register installation | |
| US2650277A | Vibrator switch construction | |
| US2652683A | Master clock system | |
| US2572400A | Signal circuit cutout | |
| US2447969A | Electric switch | |
| US2463203A | Audible signal | |
| US2486679A | Diaphragm type electromagnetic signal device | |
| US2442253A | Multiple purpose electric cooker | |
| US2445981A | Self-adapting connector | |
| US2498462A | Clock setting system |