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For the Inventor, By the Inventor

Hampden, MA, United States of America

Sigma Development Corp.


USPTO Granted Patents = 1

Trademarks = 2

Forward Citations = 5

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1 inventor (with patents filed for the assignee):

goldMedal Harvey A Smith (1 out of 4 patents)


1 patent:

1. 4351378 - Hydraulic logsplitter assembly (1982-09-28),
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USPTO Data Jan 1 1976 - Jan 13 2026

1 Patents

#1 in Hampden, MA

#6,485 in Massachusetts

#134,006 in US

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Hampden, MA, United States of America

Sigma Development Corp.

Forward Citations = 5

1 inventor:

goldMedal Harvey A Smith (1 out of 4 patents)

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