For the Inventor, By the Inventor

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St. Louis, MO, United States of America

Arch Technology Corporation

USPTO Granted Patents = 2

Forward Citations = 33

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4 inventors (with patents filed for the assignee):

Michael R Walker (1 out of 7 patents)

George E Coleman (1 out of 1 patent)

David A Christopher (1 out of 1 patent)

4. Larry G Offutt (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5967616 - Electrical control system for apparatus and method for continuous (1999-10-19),

2. 5779321 - Swing tail assembly for miner (1998-07-14),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#473 in St. Louis, MO

#1,287 in Missouri

#92,551 in US

St. Louis, MO, United States of America

Arch Technology Corporation

Forward Citations = 33

4 inventors:

Michael R Walker (1 out of 7 patents)

George E Coleman (1 out of 1 patent)

David A Christopher (1 out of 1 patent)

4. Larry G Offutt (1 out of 1 patent)

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