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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 = 'CAMPBELL') AND (first_name = 'John H.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'CAMPBELL'; First Name is 'John H.';

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T / S Patent Date Description Patentee Category Assigned To
 1910
U 972,994 October 18, 1910 Insulator
Insulator base curve to fit flush with matching curved top of crossarm		 CAMPBELL, John H.
 Insulator  

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