| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Optics | |
| #5 | Engines, pumps and turbines | |
| #6 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Pipes | |
| #4 | Unspecified technologies | |
| #5 | Cyclically operating valves | |
| #6 | Cameras | |
| #7 | Milling | |
| #8 | Dynamo-electric machines | |
| #9 | Punching metal | |
| #10 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Otis C | 15 |
| Publication | Filing date | Title |
|---|---|---|
| US2373253A | Straight thread fitting | |
| US2331562A | Valve construction | |
| US2364305A | Cutting tool | |
| US2345349A | Method of reaming valve seats | |
| US2350057A | Forming tool | |
| US2317627A | Valve | |
| US2317628A | Valve | |
| US2307328A | Swivel fitting | |
| US2300584A | Tube coupling | |
| US2282490A | Valve construction | |
| US2261442A | Light transmitting screen | |
| US2364864A | Method of manufacturing valve bodies | |
| US2279693A | Valve | |
| US2315721A | Matrix element for making light transmitting screens | |
| US1824909A | Electric motor |