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For the Inventor, By the Inventor

Sonoma, CA, United States of America

Gregory Tool Systems, Inc.


USPTO Granted Patents = 3

Forward Citations = 31

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1 inventor (with patents filed for the assignee):

goldMedal Jack T Gregory (3 out of 15 patents)


3 patents:

1. 4520648 - Lever operated riveter (1985-06-04),
2. 4498293 - Hydraulic log splitter (1985-02-12),
3. 4489471 - Hydraulic pulling tool (1984-12-25),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#7 in Sonoma, CA

#16,838 in California

#73,766 in US

Sonoma, CA (US)
Sonoma, CA, United States of America

Gregory Tool Systems, Inc.

Forward Citations = 31

1 inventor:

goldMedal Jack T Gregory (3 out of 15 patents)

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