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| All Patents in class 431/90 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,626,116 | Apr. 26, 1927 | F. Hardinge | Oil burner | industrial furnaces | |
| 2,364,591 | Dec. 05, 1944 | W.S. Landon, J.L. Stoughton | Controlling Means | flow controls | |
| 2,466,582 | Apr. 05, 1949 | E.J. Dillman | Speed and Altitude Responsive Control for Aircraft Heaters | heating apparatus | |
| 2,561,106 | Jul. 17, 1951 | A.K. Foulds | Fuel Feeding Control Means Responsive to Air Blower Pressure | flow controls | |