| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Agriculture | |
| #4 | Electrical machinery and energy | |
| #5 | Measurement | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Lighting device details | |
| #4 | Horticulture | |
| #5 | Sound-producing devices | |
| #6 | Measuring force, work and fluid pressure | |
| #7 | Planting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dalen Gustaf | 10 |
| #2 | Eskilson Sven August | 1 |
| #3 | Karlson Gustaf Victor | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1121105A | Diaphragm-valve. | |
| US1079544A | Light-signal apparatus. | |
| US1179079A | Automatic light-signal apparatus. | |
| US985513A | Pendulum-support for lenses. | |
| US1041748A | Automatic valve. | |
| US1011922A | Diaphragm-valve. | |
| US943300A | Signal-light apparatus. | |
| US954172A | Valve. | |
| US939986A | Automatically opening and closing valves. | |
| US1041438A | Lantern. | |
| US1011756A | Device for automatically opening and closing valves. |