| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | EPO (European Patent Office) | 4 | |
| #4 | China | 2 | |
| #5 | Hong Kong | 2 | |
| #6 | Mexico | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Consumer goods | |
| #3 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Sound-producing devices | |
| #3 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Orloff Leslie M | 8 |
| #2 | Remington Duncan | 6 |
| #3 | Herron William L | 4 |
| #4 | Waugh David | 4 |
| #5 | Paley Gary | 4 |
| #6 | Waugh David T | 4 |
| #7 | Wal D | 1 |
| #8 | Chomet Marc | 1 |
| #9 | Orloff L M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5748074A | Electronic door chime | |
| US5638047A | Sound activated transmitter | |
| EP0682329A1 | Combined audible and visual signalling device | |
| US5392202A | Low profile illuminated push button | |
| US5420564A | Door chime assembly |