|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '501') AND (category.subclass = '61') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '501'; Subclass is '61';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,449,793||March 27, 1923||Glass and Process of Making Same
Boro-silicate glass made colorless by adding neodymium oxide
|TAYLOR, William C.
||Boron||Corning Glass Works|
|U||2,513,958||July 4, 1950||Electric Insulating Bushing and Glass Therefore
Glass capacitor bushing and improved seal with metal parts
|OMLEY, Herbert A.
||Bushing||General Electric Co.|
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