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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'BOYNTON') AND (first_name = 'John F.') ORDER BY date ASC, patent, type

Total of 3 patents found where: Last Name is 'BOYNTON'; First Name is 'John F.';

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T / S Patent Date Description Patentee Category Assigned To
 1867
U 61,390 January 22, 1867 Improved Compound for Telegraph Insulators, and for Other Purposes
Heating earthenware insulators to 400-500 degrees and dipping into asphaltic compound that has been mixed with sulfur, silicic acid, and silicate of alumina to provide a hard, weather-resistant coating
BOYNTON, John F.
Coating  
U 66,453 July 9, 1867 Improvement in Insulators for Telegraphs
Earthenware pin and insulator saturated with tar
BOYNTON, John F.
Earthenware  
 1869
U 96,194 October 26, 1869 Improvement in Lightning Rod Points
Lightning rod point struck from a sheet of metal and having multiple corrugations
BOYNTON, John F.
Lightning Rod Point  

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