| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Mechanical elements | |
| #3 | Civil engineering | |
| #4 | Thermal processes | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Safety devices | |
| #3 | Pipes | |
| #4 | Air-conditioning | |
| #5 | Lubricating | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hersey Jr Henry J | 13 |
| #2 | Mikesell Daniel B | 2 |
| #3 | Leslie Silverman | 1 |
| #4 | Andersen Ivar C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2731107A | Filter | |
| US2765047A | Filter | |
| US2765048A | Rigid filter with reverse jet cleaning device | |
| US2752003A | Filter with continuous web filter medium | |
| US2573844A | Dust filter | |
| US2689020A | Dust filter | |
| US2551126A | Dust filter | |
| US2559428A | Dust filter | |
| US2495635A | Dust filter | |
| US2245037A | Coupling for flexible pipes | |
| US2097663A | Noncollapsing flexible pipe | |
| US2073009A | Oiler for tools operated by fluid pressure | |
| US1838623A | Supporting means for flexible tubing |