| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | France | 4 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Surface technology and coating | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Aeroplanes | |
| #2 | Shafts | |
| #3 | Parachutes | |
| #4 | Electrolytic coating production | |
| #5 | Metallic material cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meyers Donald N | 2 |
| #2 | David Halpert | 2 |
| #3 | Lemont Jr Harold E | 1 |
| #4 | Julius Dancik Paul | 1 |
| #5 | Spratt George G | 1 |
| #6 | Ciolkosz Zbyslaw M | 1 |
| #7 | Dancik Paul J | 1 |
| #8 | Mazzitelli Frederick R | 1 |
| #9 | Elliot Daland | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2936968A | Convertiplane control system | |
| US2936967A | Convertiplane | |
| US2921888A | Electroplating titanium ano titanium alloys | |
| US2883311A | Method and composition for treating aluminum and aluminum alloys | |
| US2865688A | Roller bearing | |
| US2860711A | Control system for tandem helicopter | |
| US2749059A | Aircraft with retractable variable radius rotary wing | |
| US2748876A | Means for controlling tip-path of rotors | |
| CA530951A | Helicopter for towing |