| Patents for Edwin R. Stilwell |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 44,561 | Oct. 04, 1864 | E.R. Stilwell | Improvement in feed-water heaters and filters | feedwater apparatus |
| 158,997 | Jan. 19, 1875 | E.R. Stilwell | Cases for Turbine Water-Wheels | turbine water wheels |
| 195,855 | Oct. 02, 1877 | E.R. Stilwell | Turbine Water-Wheels | turbine water wheels |
| 274,048 | Mar. 13, 1883 | E.R. Stilwell | Feed-water heater and purifier | feedwater apparatus |
| 278,196 | May 22, 1883 | E.R. Stilwell | Feed-water heater | feedwater apparatus |
| 510,300 | Dec. 05, 1893 | E.R. Stilwell | Feed-water-purifier attachment | feedwater apparatus |
