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| All Patents in class 431/350 | |||||
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| Number | Date | Patentee | Title | Type | |
| 404,830 | Jun. 11, 1889 | W.F. Folmer | Gas Burner | lamps | |
| 1,069,783 | Aug. 12, 1913 | E.R. Hodges | Gas-flame spreader | ||
| 1,402,243 | Jan. 03, 1922 | R.F. Metcalfe | Method of Burning Fuel and Apparatus Therefor | fuel burners | |
| 2,155,339 | Apr. 18, 1939 | F.A. Stoll | Burner | heating apparatus | |