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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 = 'DOELTER') AND (first_name = 'Otto') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'DOELTER'; First Name is 'Otto';

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T / S Patent Date Description Patentee Category Assigned To
 1929
U 1,707,054 March 26, 1929 Insulator
Strain type (impractical)		 DOELTER, Otto
 Strain  

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