| All Patents in class 415/141 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 2,485 | Mar. 09, 1842 | P.H. Green, H.H. Evarts | Construction of rotary engines to be propelled by either water or steam | steam engines |
| 178,582 | Jun. 13, 1876 | O.J. Backus | Reversible Rotary Water Motor | hydraulic motors |
| 320,725 | Jun. 23, 1885 | L.H. Timmons | Rotary Steam Engine | rotary steam engines |
| 530,375 | Dec. 04, 1894 | W.H. Willey | Impact Rotary Steam Motor | rotary steam engines |
| 654,872 | Jul. 31, 1900 | E.F. Cassel | Hydraulic Motor | hydraulic motors |
| 1,865,502 | Jul. 05, 1932 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,931,158 | Oct. 17, 1933 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,948,478 | Feb. 20, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,950,773 | Mar. 13, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,950,775 | Mar. 13, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,962,382 | Jun. 12, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,962,383 | Jun. 12, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 2,382,535 | Aug. 14, 1945 | N.T. Bauer | Axial flow fan | |
| 2,604,852 | Jul. 29, 1952 | M.H. Baker | Pump Impeller | reciprocating pumps |
