Streamwood, IL, United States of America

Qpf, L.l.c.


USPTO Granted Patents = 1


Forward Citations = 34

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4 inventors (with patents filed for the assignee):

goldMedal Tung-Yao Weng (1 out of 2 patents)

silverMedal John H Lawrence (1 out of 2 patents)

bronzeMedal Alan M Davis (1 out of 4 patents)

4 Thomas M Krigas (0 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 2 2025

1 Patents

#3 in Streamwood, IL

#6,099 in Illinois

#133,851 in US

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Streamwood, IL, United States of America
Forward Citations = 34

4 inventors:

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