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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 = 'SIMPSON') AND (first_name = 'Harvey') ORDER BY category DESC, date, patent, type

Total of 3 patents found where: Last Name is 'SIMPSON'; First Name is 'Harvey';

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T / S Patent Date Description Patentee Category Assigned To
 Lightning Rod
U 470,514 March 8, 1892 Lightning Conductor
Hollow conductor rod with slip fittings
SIMPSON, Harvey
Lightning Rod  
U 538,603 April 30, 1895 Lightning Rod
Hollow lightning rod with cup to divert water into the lower sections of the rod to improve conduction of current to ground
SIMPSON, Harvey
Lightning Rod  
U 940,742 November 23, 1909 Water Retaining and Conveying Attachment for Cable Lightning Rods
Method of retaining water in the ground to aid in conducting the current to ground
SIMPSON, Harvey
Lightning Rod  

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