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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'STEINMETZ') AND (first_name = 'Charles P.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'STEINMETZ'; First Name is 'Charles P.';

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T / S Patent Date Description Patentee Category Assigned To
U 1,049,005 December 31, 1912 Insulating Composition and Process of Making the Same
Artificial reconstructed lava made from combining soapstone or talc (hydrated silicate of magnesia), with a binder which is the precipitate of a mixture of magnesium sulfate and sodium silicate. The combination is then molded to the desired shape and fired at 1000 to 1300 degrees centigrade or higher.
Composition General Electric Co.

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