10 Patents
#22 in Des Moines, IA
#190 in Iowa
#29,802 in US
#55,915 in the World
Paper Systems, Inc.
Forward Citations = 151
3 inventors:
Des Moines, IA, United States of America
3 inventors (with patents filed for the assignee):
David W Perkins (10 out of 19 patents)
William L Chase (3 out of 10 patents)
Williams L Chase (1 out of 1 patent)
10 patents:
#22 in Des Moines, IA
#190 in Iowa
#29,802 in US
#55,915 in the World
3 inventors: