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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 = '65') AND (category.subclass = '116') ORDER BY assigned_to ASC, date, patent, type

Total of 4 patents found where: Class is '65'; Subclass is '116';

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T / S Patent Date Description Patentee Category Assigned To
U 157,717 December 15, 1874 Improvement in Tempering Glass, and Furnaces Therefor
Tempering glass by dropping into oil (see patent 169,783)
LA BASTIE, Francois B. A. Royer de
Glass  
U 170,339 November 23, 1875 Improvement in Processes of Annealing Glass
Process of annealing glass
BROOKFIELD, James M.
Glass  
U 176,067 April 11, 1876 Improvement in Processes for Toughening Glass
Method of annealing glass
ROGERS, George E.
Glass  
U 3,093,508 June 11, 1963 Method of Coating Glass
Silicone coated glass that can be used for insulators
WARTENBERG, Erwin W.
Glass Coating  

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