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Two Rivers, WI, United States of America

William D Christoffel

USPTO Granted Patents = 4

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 180(Granted Patents)

Company Filing History:

American Hospital Supply Corporation

Years Active: 1980-1982

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D265684 - Hypodermic needle destroyer (1982-08-03),

2. 4255996 - Needle destroyer with improved mechanical advantage (1981-03-17),

3. 4197837 - Inflatable-deflatable pad and air control system therefor (1980-04-15),

4. 4186732 - Method and apparatus for pulsing a blood flow stimulator (1980-02-05),

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