| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Aeroplanes | |
| #2 | Springs | |
| #3 | Unspecified technologies | |
| #4 | Steam turbines | |
| #5 | Unspecified technologies | |
| #6 | Certain plastics | |
| #7 | Clutches and brakes | |
| #8 | Fillers | |
| #9 | Non-positive-displacement pumps | |
| #10 | Shaping of plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stamps Frank B | 20 |
| #2 | Popelka David A | 5 |
| #3 | Rauber Richard E | 5 |
| #4 | Tisdale Patrick R | 5 |
| #5 | Donovan Tom | 3 |
| #6 | Campbell Thomas C | 3 |
| #7 | Baskin Bryan | 3 |
| #8 | Braswell Jr James L | 3 |
| #9 | Rauber Richard | 2 |
| #10 | Yuce Mithat | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2013287576A1 | Aircraft rotor with discrete flap hinge | |
| US2013216384A1 | Compact rotorcraft dual-element spherical elastomeric centrifugal-force bearing assembly | |
| US2013156575A1 | Blade-pitch control system with feedback lever | |
| US2013121827A1 | Dual mode rotor hub assembly | |
| US2013105637A1 | Active prop rotor stability system | |
| US2013108447A1 | Increased capacity spherical lined bearings | |
| US2011274548A1 | Stiff-in-plane rotor configuration |