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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 = 'SORTWELL') AND (first_name = 'Harold H.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'SORTWELL'; First Name is 'Harold H.';

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T / S Patent Date Description Patentee Category Assigned To
 1927
U 1,633,462 June 21, 1927 Ceramic Insulating Material
Clay mixture to produce a black porcelain body.		 SORTWELL, Harold H.
 Porcelain Star Porcelain Co.

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