Saint Paul, MN, United States of America

Respiratory Technologies, Inc.


USPTO Granted Patents = 2


Trademarks = 3

Forward Citations = 19

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11 inventors (with patents filed for the assignee):

goldMedal Leland G Hansen (2 out of 9 patents)

silverMedal Karl Zgoda (1 out of 1 patent)

bronzeMedal Shad Lindrud (1 out of 5 patents)

4 Hamid Ziaimehr (1 out of 1 patent)

5 Robert Buehler (1 out of 1 patent)

6 K James Ehlen (1 out of 1 patent)

7 Gary L Hansen (1 out of 38 patents)

8 Ryan J Staab (1 out of 7 patents)

9 Warren J Warwick (1 out of 7 patents)

10 Mario Nozzarella (1 out of 1 patent)

11 John P Rock (1 out of 25 patents)

12 Chad Colsch (0 patent)

13 Robert Clapp (0 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#262 in Saint Paul, MN

#2,484 in Minnesota

#92,558 in US

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Saint Paul, MN, United States of America
Forward Citations = 19

11 inventors:

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