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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (date >= '1989-00-00' AND date < '1990-00-00') ORDER BY category ASC, date, patent, type

Total of 2 patents found where: Year is 1989

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T / S Patent Date Description Patentee Category Assigned To
 Polymer
U 4,845,318 July 4, 1989 Composite Electrical Insulator and Method of Forming Same
Polymer suspension with porcelain core
CLABBURN, Robin
LOOMS, John
Polymer Raychem Limited
 Suspension
U 4,814,551 March 21, 1989 Anticorrosive Insulator
Suspension (anticorrosive), cementing metal cap for DC service (Japan)
WATANABE, Akihiro
MORI, Shigeo
Suspension NGK Insulators, Ltd.

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