| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Unspecified technologies | |
| #3 | Electric motor controls | |
| #4 | Unspecified technologies | |
| #5 | Gearing | |
| #6 | Pumps | |
| #7 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rennerfelt Gustaf | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1017910A | Friction-gearing. | |
| US941097A | Thrust-bearing. | |
| US914075A | Thrust-bearing. | |
| US904449A | Steam-driven pump. | |
| US977128A | Roller-bearing. | |
| US951288A | Roller-bearing. | |
| US1005473A | Elastic-wheel bearing. | |
| US847261A | Roller-bearing. | |
| US847260A | Roller-bearing. | |
| US833178A | Means for opening and closing electrical circuits. | |
| US769406A | Means for controlling and regulating electric motors. |