% Expired Patents = 100.0

Forward Citations = 34

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2 inventors (with patents filed for the assignee):

Charles C Kirkham (1 out of 2 patents)

William R Marble (1 out of 1 patent)

1 patent: Sort by Forward Citations

#2 in Corbett, OR

#1,712 in Oregon

#136,583 in US

Keamark, Inc.

Forward Citations = 34

2 inventors:

Charles C Kirkham (1 out of 2 patents)

William R Marble (1 out of 1 patent)

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