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Johnston Harold E patents

Johnston Harold E is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.

Inventor statistics
MetricValue
InventorJohnston Harold E
Total patents4
First publicationMay 16, 2017
Latest publicationAug 19, 2021

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Major assignees

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Top CPC classifications

Most common classification codes across this inventor's patents.

Top CPC codes for this inventor
CPCPatents
C06B21/0054
C06B25/344
C06B21/004
C06B25/004