SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Porcelain') ORDER BY assigned_to ASC, date, patent, type |
Total of 10 patents found where: Category is 'Porcelain';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
U | 1,572,730 | February 9, 1926 | Batch for Making Ceramic Material and to a Ceramic Material Made Therefrom Porcelain composition for insulator using manganese |
LOCKE, Fred M. LOCKE, Fred J. |
Porcelain | |
Champion Porcelain Co. | ||||||
U | 1,631,729 | June 7, 1927 | Ceramic Insulating Material Porcelain composition for spark plugs and insulators consisting of Sillimanite and a glassy matrix |
JEFFERY, Joseph A. MONTGOMERY, Earle T. |
Porcelain | Champion Porcelain Co. |
U | 1,631,730 | June 7, 1927 | Ceramic Material Porcelain composition for spark plugs and insulators consisting of Sillimanite |
JEFFERY, Joseph A. MONTGOMERY, Earle T. |
Porcelain | Champion Porcelain Co. |
U | 1,723,174 | August 6, 1929 | Use of Dumortierite Porcelain composition use the mineral dumortierite which allows firing at a lower temperature |
JEFFERY, Joseph A. RIDDLE, Frank H. |
Porcelain | Champion Porcelain Co. |
General Electric Co. | ||||||
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. |
Jeffery-Dewitt Co. | ||||||
U | 1,409,953 | March 21, 1922 | Ceramic Insulating Material Porcelain composition using Sillimanite for high electrical and mechanical strength and low coefficient of expansion, which is particularly suitable for spark plugs |
JEFFERY, Joseph A. |
Porcelain | Jeffery-Dewitt Co. |
Lapp Insulator Co., Inc. | ||||||
U | 2,481,729 | September 13, 1949 | Porcelain Insulator Body Porcelain clay body with an increased firing range |
DEWEY, Benjamin F. |
Porcelain | Lapp Insulator Co., Inc. |
NGK Insulators, Ltd. | ||||||
U | 4,465,900 | August 14, 1984 | High Voltage Glazed Porcelain Insulators Porcelain insulator and glaze designed specifically for DC service |
SEIKE, Shoji MITSUMATSU, Yoshio |
Porcelain | NGK Insulators, Ltd. |
Rosenthal Technik AG | ||||||
U | 4,332,913 | June 1, 1982 | Flux Combination of Barium Oxide and Potassium Feldspar for High Strength Alumina Porcelain Electric Insulators Porcelain composition with low shrinkage during firing |
BOCK, Peter |
Porcelain | Rosenthal Technik AG |
Star Porcelain Co. | ||||||
U | 1,633,462 | June 21, 1927 | Ceramic Insulating Material Clay mixture to produce a black porcelain body. |
SORTWELL, Harold H. |
Porcelain | Star Porcelain Co. |
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