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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 = 'SONNEBORN') AND (first_name = 'Sol S.') ORDER BY specimen ASC, date, patent, type

Total of 4 patents found where: Last Name is 'SONNEBORN'; First Name is 'Sol S.';

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T / S Patent Date Description Patentee Category Assigned To
 1918
U 1,282,481 October 22, 1918 Multiple Section Suspension Insulator
Suspension insulator with symmetrical metal parts to reduce electrical strain
SONNEBORN, Sol S.
Suspension  
 1919
U 1,290,673 January 7, 1919 Sectional Pin Insulator
Multipart with sections screwed together with threaded metal bands
SONNEBORN, Sol S.
Multipart  
U 1,291,217 January 14, 1919 Adjustable Suspension Insulator
Suspension disk with adjustable length pin to equalize the potential across each disk to reduce arc-over
SONNEBORN, Sol S.
Suspension  
 1922
U 1,426,421 August 22, 1922 Condenser Cemented Sectional Insulator
Multipart using metallic cement and metal sheath covering skirts
SONNEBORN, Sol S.
Multipart Hopewell Insulation & Mfg. Co.

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