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 = '501') AND (category.subclass = '147') ORDER BY assigned_to ASC, date, patent, type |
Total of 1 patents found where: Class is '501'; Subclass is '147';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
Locke Insulator Corp. | ||||||
U | 1,925,058 | August 29, 1933 | Process for Forming Plastic Clay Masses Wet process clay reflocculation method to eliminate pugging process |
ROWLAND, Davidge H. WETZEL, Kurt |
Wet Process | Locke Insulator Corp. |
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