|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 = '174') AND (category.subclass = '137B') ORDER BY date ASC, patent, type|
Total of 10 patents found where: Class is '174'; Subclass is '137B';
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||176,067||April 11, 1876||Improvement in Processes for Toughening Glass
Method of annealing glass
|ROGERS, George E.
|U||297,683||April 29, 1884||Telephone Line
Insulator and pin coated with waterproof compound
|DOOLITTLE, Thomas B.
|U||1,006,040||October 17, 1911||Insulator
Suspension using multiple parts connected with a cable
|U||1,700,066||January 22, 1929||Insulator for Radio Frequency Currents
Radio strain insulator made from Pyrex glass for antennas
|MARSHALL, Albert E.
||Radio||Corning Glass Works|
|U||1,931,626||October 24, 1933||Insulator
Threads molded from cement in finished insulator
|STEVENS, Frank J.
||Thread||Locke Insulator Corp.|
|U||2,198,734||April 30, 1940||Insulator
Suspension disk with crown more tempered than skirt for strength
|LITTLETON, Jesse T.
||Suspension||Corning Glass Works|
|U||2,304,483||December 8, 1942||Electrical Insulator
Rubber pin type insulator
|SMITH, Donald H.
WHEELER, Herbert H.
|Rubber||Western Union Telegraph Co.|
|U||2,437,559||March 9, 1948||Insulator and Method of Manufacturing Same
Addition of powdered aluminum to improve quality of porcelain
|ROWLAND, Davidge H.
||Manufacturing||The Porcelain Insulator Corp.|
|U||3,097,101||July 9, 1963||Ceramic Product and Method of Making the Same
Increases the mechanical and electrical strength of porcelain insulators by controlling the grain size of the flint used in the porcelain body and the glaze.
|LESTER, Ronald H.
||Porcelain||General Electric Co.|
|U||4,757,162||July 12, 1988||Rigid Electrical Insulator Including a Lightly Tempered Soda-Lime Glass Dielectric
Glass insulator with controlled stress and compression
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