% Expired Patents = 100.0

Forward Citations = 24

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3 inventors (with patents filed for the assignee):

David J Wynne (1 out of 3 patents)

John M Gray, Jr (1 out of 3 patents)

David M Ramsey (1 out of 1 patent)

2 patents: Sort by Forward Citations

#3 in Marion, VA

#1,738 in Virginia

#94,730 in US

Coffman Stairs, LLC.

Forward Citations = 24

3 inventors:

David J Wynne (1 out of 3 patents)

John M Gray, Jr (1 out of 3 patents)

David M Ramsey (1 out of 1 patent)

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