| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 31 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Consumer goods | |
| #5 | Thermal processes | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Vehicle wheels | |
| #4 | Clutches and brakes | |
| #5 | Special designs | |
| #6 | Producing decorative effects | |
| #7 | Domestic stoves | |
| #8 | Shaping of plastics | |
| #9 | Shaping clay | |
| #10 | Domestic plumbing installations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Corbin Jr Elbert A | 30 |
| #2 | Wolf Ellwood W | 3 |
| #3 | Corbin Elbert A Jr | 2 |
| #4 | Butler George P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2270037A | Reversible valve | |
| US2251481A | Flow control valve | |
| US2225036A | Automatic-attachment for pipe molding machines | |
| US2233074A | Rotary gate and orifice valve | |
| US2210282A | Line check valve | |
| US2224290A | Automatic valve locking and releasing device | |
| US2217835A | Valve | |
| US2196203A | Hydraulic clutch | |
| US2196202A | Flow control valve | |
| US2217834A | Valve construction | |
| US2177349A | Valve construction | |
| US2166941A | Knock-down furniture frame | |
| US2126739A | Valve | |
| US2156277A | House construction | |
| US2139671A | Washbasin | |
| US2115008A | Tendon puller | |
| US2118808A | Hydraulic brake | |
| US2123180A | Sheet material | |
| US2060041A | Utility and decorative sheet material and method of making the same | |
| US2037008A | Method of making decorative lustrous sheet material |