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For the Inventor, By the Inventor

Brookfield, WI, United States of America

Tarrenn Corporation


USPTO Granted Patents = 1

Forward Citations = 35

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1 inventor (with patents filed for the assignee):

goldMedal John Christianson (1 out of 3 patents)


1 patent:

1. 5067709 - Unassisted lower torso strengthening and stretching device (1991-11-26),
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USPTO Data Jan 1 1976 - Jan 13 2026

1 Patents

#47 in Brookfield, WI

#2,619 in Wisconsin

#134,032 in US

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Brookfield, WI, United States of America

Tarrenn Corporation

Forward Citations = 35

1 inventor:

goldMedal John Christianson (1 out of 3 patents)

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