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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 = '524') ORDER BY date ASC, patent, type

Total of 8 patents found where: Class is '524';

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T / S Patent Date Description Patentee Category Assigned To
 1851
U Specimen known 8,075 May 6, 1851 Improvement in the Manufacture of India Rubber
Rubber - vulcanizing process for hard rubber for insulator
GOODYEAR, Nelson
Rubber  
 1881
U 243,782 July 5, 1881 Compound Substance for Electric Insulators
Composition for hard rubber for insulators
MAYALL, Thomas J.
Composition  
 1887
U 362,076 May 3, 1887 Composition for Insulating and Other Purposes
Composition formula of Gilsonite
GILSON, Samuel H.
Composition 1/2 to George Goss, Sr.
 1922
U 1,409,091 March 7, 1922 Cement
Cement composition
GODDARD, Walter T.
Cement Locke Insulator Corp.
 1939
U 2,146,596 February 7, 1939 Rubber Insulating Compound and Method of Making the Same
Rubber compound for electrical conductors
SCHWARTZ, Emil W.
SAVAGE, Manuel H.
SPARGO, Francis C.
Rubber General Electric Co.
U 2,146,597 February 7, 1939 Process of Treating Rubber
Rubber treating process
SCHWARTZ, Emil W.
CROASDALE, Evan T.
Rubber General Electric Co.
 1959
U 2,879,323 March 24, 1959 Electrical Insulating Cement
Cement made from synthetic resin to bond metal to porcelain
NICHOLS, Frank S.
SMITH, JR., Sidney R.
Cement General Electric Co.
 1988
U 4,749,824 June 7, 1988 High Voltage Insulators
Polymer suspension made of silicon elastomer
ORBECK, Tor
Polymer Dow Corning Corp.

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