|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 = '26') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '501'; Subclass is '26';
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||2,157,100||May 9, 1939||Glazed Ceramic Insulator and the Like
Glaze - compression glaze
|ROWLAND, Davidge H.
||Glaze||Locke Insulator Corp.|
|U||3,368,026||February 6, 1968||Electrical Insulator Having Improved Surface Electrical Stress Distribution
RFI prevention using two glaze coatings on suspension insulators
|VINCE, Patrick Michael
||RFI||Doulton & Co., Ltd.|
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