1 Patents
#6 in Caledonia, MI
#4,521 in Michigan
#133,893 in US
Steffans Enterprises, Inc.
Forward Citations = 14
3 inventors:
Caledonia, MI, United States of America
3 inventors (with patents filed for the assignee):
Charles J Steffens (1 out of 18 patents)
Douglas C Steffens (1 out of 3 patents)
Mark J Heintskill (1 out of 3 patents)
1 patent:
#6 in Caledonia, MI
#4,521 in Michigan
#133,893 in US
3 inventors: