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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 = 'DORFF') AND (first_name = 'Conrad J.') ORDER BY date ASC, patent, type

Total of 2 patents found where: Last Name is 'DORFF'; First Name is 'Conrad J.';

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T / S Patent Date Description Patentee Category Assigned To
U 890,891 June 16, 1908 Insulator Pin
Bracket to hold two insulators vertically
DORFF, Conrad J.
Bracket Fredric Greer
U 937,515 October 19, 1909 Insulator Pin
Pin (metal) with hollow threaded end
DORFF, Conrad J.
Pin Fredric Greer

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