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For the Inventor, By the Inventor

Minneapolis, MN, United States of America

Threepenny Electronics Corporation


USPTO Granted Patents = 2

Forward Citations = 13

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1 inventor (with patents filed for the assignee):

goldMedal William A Johnson (2 out of 7 patents)


2 patents:

1. 5404115 - Variable gain amplifier (1995-04-04),
2. 5332928 - Battery drain reducer (1994-07-26),
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USPTO Data Jan 1 1976 - Sep 15 2026

2 Patents

#557 in Minneapolis, MN

#2,528 in Minnesota

#94,722 in US

Minneapolis, MN (US)
Minneapolis, MN, United States of America

Threepenny Electronics Corporation

Forward Citations = 13

1 inventor:

goldMedal William A Johnson (2 out of 7 patents)

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