| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Electrical machinery and energy | |
| #3 | Audio-visual technology | |
| #4 | Machines | |
| #5 | Basic communication technologies | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Advertising | |
| #3 | Unspecified technologies | |
| #4 | Dynamo-electric machines | |
| #5 | Lighting device details | |
| #6 | Electric switches | |
| #7 | Tuning resonant circuits | |
| #8 | Marine propulsion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henschel Charles J | 11 |
| #2 | Messick Charles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1564672A | Combined shield plate, dial, and vernier | |
| US1452157A | Indicator motor | |
| US1449995A | Water-tight snap-switch operating mechanism | |
| US1526494A | Annunciator drop | |
| US1393685A | Annunciator-drop | |
| US1393684A | Ship's telegraph | |
| US1377480A | Lamp-fixture | |
| US1367258A | Marine telegraph | |
| US1336519A | Electrically-operated vibratory motor | |
| US1139972A | Geometrically-progressive control system. | |
| US1223169A | Remote control system. |