For the Inventor, By the Inventor

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Shorewood, MN, United States of America

Information Exchange Systems, Inc.

USPTO Granted Patents = 2

Forward Citations = 32

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4 inventors (with patents filed for the assignee):

Ronald R Johnson (2 out of 7 patents)

David C Burns (1 out of 4 patents)

Robert J Kirscht (1 out of 1 patent)

4. Dennis L Johnson (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4727509 - Master/slave system for replicating/formatting flexible magnetic (1988-02-23),

2. 4720230 - Triple combination flexible diskette picker (1988-01-19),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#4 in Shorewood, MN

#2,488 in Minnesota

#92,697 in US

Shorewood, MN, United States of America

Information Exchange Systems, Inc.

Forward Citations = 32

4 inventors:

Ronald R Johnson (2 out of 7 patents)

David C Burns (1 out of 4 patents)

Robert J Kirscht (1 out of 1 patent)

4. Dennis L Johnson (1 out of 1 patent)

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