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For the Inventor, By the Inventor

Evergreen, CO, United States of America

Denver Surgical Developments, Inc.


USPTO Granted Patents = 1

Trademarks = 1

Forward Citations = 191

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1 inventor (with patents filed for the assignee):

goldMedal John B Newkirk (1 out of 6 patents)


1 patent:

1. 4474569 - Antenatal shunt (1984-10-02),
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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#16 in Evergreen, CO

#3,377 in Colorado

#133,947 in US

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Evergreen, CO, United States of America

Denver Surgical Developments, Inc.

Forward Citations = 191

1 inventor:

goldMedal John B Newkirk (1 out of 6 patents)

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