| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Optics | |
| #4 | Furniture and games | |
| #5 | Electrical machinery and energy | |
| #6 | Semiconductors | |
| #7 | Control | |
| #8 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Sound-producing devices | |
| #2 | Unspecified technologies | |
| #3 | Semiconductor devices | |
| #4 | Games | |
| #5 | Photosensitive materials | |
| #6 | Electric switches | |
| #7 | Vehicle signalling and lighting | |
| #8 | Coin-freed | |
| #9 | Cameras | |
| #10 | Skates |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pierman Alexander N | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1652683A | Alarm signal | |
| US1463554A | Mounting for stems of crystal detectors | |
| US1276808A | Signal or alarm apparatus. | |
| US1276807A | Alarm-signal. | |
| US1106676A | Motion-picture-film carton. | |
| US1135048A | Warning-signal. | |
| US1032501A | Toy and game. | |
| US1198147A | Warning-signal. | |
| US1091533A | Alarm. | |
| US968517A | Roller-skate. | |
| US1196718A | Color photography. |