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| All Patents in class 236/68A | |||||
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| Number | Date | Patentee | Title | Type | |
| 187,513 | Feb. 20, 1877 | E.E. Colby | Improvement in bridges | bridges | |
| 1,981,313 | Nov. 20, 1934 | E.J. Dillman, L.W. Eggleston | Thermostatically Operated Valve | industrial valves | |
| 2,042,217 | May 26, 1936 | L.W. Eggleston | Heating System and Control Means Therefor | industrial control apparatus | |
| 2,061,537 | Nov. 17, 1936 | L.W. Eggleston | Regulator for Heating Apparatus | thermostats | |