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 = '523') ORDER BY description DESC, date, patent, type |
Total of 3 patents found where: Class is '523';
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 |
1939 | ||||||
U | 2,146,597 | February 7, 1939 | Process of Treating Rubber Rubber treating process |
SCHWARTZ, Emil W. CROASDALE, Evan T. |
Rubber | General Electric Co. |
1922 | ||||||
U | 1,409,091 | March 7, 1922 | Cement Cement composition |
GODDARD, Walter T. |
Cement | Locke Insulator Corp. |
1950 | ||||||
U | 2,514,141 | July 4, 1950 | Polyester Resin Adhesive Compositions Cement composed of polyester resin and sand for attaching metal parts to suspension and other insulators |
PHILLIPS, Dorothea S. |
Cement | American Cyanamid Co. |
Total of 0.01 seconds