For the Inventor, By the Inventor

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Medina, NY, United States of America

Sigma International

USPTO Granted Patents = 2

Forward Citations = 63

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7 inventors (with patents filed for the assignee):

Roger L Hungerford (2 out of 15 patents)

Michael H Wollowitz (1 out of 12 patents)

Kenneth Corwin (1 out of 2 patents)

4. Yuriy Shvetsov (1 out of 1 patent)

5. Robert J Pieroni (1 out of 1 patent)

6. Paul J Hufnagel (1 out of 1 patent)

7. Christopher D Cimerman (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 7059840 - Energy-saving, anti-free flow portable pump for use with standard PVC IV tubing (2006-06-13),

2. 5567120 - Electronic infusion device and novel roller clamp holden therefor (1996-10-22),

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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#4 in Medina, NY

#5,843 in New York

#94,730 in US

Medina, NY, United States of America

Sigma International

Forward Citations = 63

7 inventors:

Roger L Hungerford (2 out of 15 patents)

Michael H Wollowitz (1 out of 12 patents)

Kenneth Corwin (1 out of 2 patents)

4. Yuriy Shvetsov (1 out of 1 patent)

5. Robert J Pieroni (1 out of 1 patent)

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