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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 = 'WELCH') AND (first_name = 'Walter J.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'WELCH'; First Name is 'Walter J.';

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T / S Patent Date Description Patentee Category Assigned To
 1921
U 1,393,330 October 11, 1921 Electrical Insulator
Links for Hewlett suspension disks (see 1,110,934)		 WELCH, Walter J.
TRACY, Atlee H.
 Suspension H. M. Byllesby & Co.

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