| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Germany | 2 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Measurement | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Pipes | |
| #4 | Shaping of plastics | |
| #5 | Measuring volume | |
| #6 | Separation | |
| #7 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weeden Frank G | 4 |
| #2 | Petrosky Willard L | 3 |
| #3 | Weeden Jr Frank G | 3 |
| #4 | Graves Gail W | 3 |
| #5 | Pope Gerald R | 3 |
| #6 | Hester Clarence H | 2 |
| #7 | Lott William R | 1 |
| #8 | Pope Gerald Ray | 1 |
| #9 | Sellars Franklin T | 1 |
| #10 | Stewart Jun Joseph Terrell | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2431887A1 | PLASTIC CONE VALVE | |
| US3778028A | Lined butterfly valve | |
| US3602945A | Apparatus for making a plastic expansion joint | |
| US3552426A | Vacuum breaker device | |
| US3498315A | Corrosion resistant ball check valve | |
| US3462825A | Method of lining tubular members | |
| US3435853A | Method and means for preventing liner contraction | |
| US3414246A | Tower tray | |
| US3347568A | Corrosion proof fflowmeter | |
| US3359599A | Liner flaring apparatus | |
| US3395440A | Method of skiving a gasket jacket | |
| US3139115A | Lined vacuum bellows | |
| US3143147A | Dip tube |