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For the Inventor, By the Inventor

Boulder, CO, United States of America

Lifecare Services, Inc.


USPTO Granted Patents = 3

Trademarks = 3

Forward Citations = 641

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4 inventors (with patents filed for the assignee):

goldMedal Raymond D Chu (3 out of 3 patents)

silverMedal Anthony C Rubner (2 out of 3 patents)

bronzeMedal Marc A Bergman (2 out of 2 patents)

4.  Michael W Fellinger (1 out of 16 patents)


3 patents:

1. 4617637 - Servo control system for a reciprocating piston respirator (1986-10-14),
2. 4587967 - Oxygen enriched reciprocating piston respirator (1986-05-13),
3. 4493614 - Pump for a portable ventilator (1985-01-15),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#303 in Boulder, CO

#1,773 in Colorado

#73,766 in US

Boulder, CO (US)
Boulder, CO, United States of America

Lifecare Services, Inc.

Forward Citations = 641

4 inventors:

goldMedal Raymond D Chu (3 out of 3 patents)

silverMedal Anthony C Rubner (2 out of 3 patents)

bronzeMedal Marc A Bergman (2 out of 2 patents)

4.  Michael W Fellinger (1 out of 16 patents)

Please report any incorrect information to [email protected]
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