163 Utility and 3 Design Patents
#1 in Grand Rapids, MI
#63 in Michigan
#1,914 in US
#3,315 in the World
rank by utility patentsForward Citations = 17,936
Company Filing History:






4. 12 out of 42

5. 2 out of 831,952 patents
Other
where one patent can have more than one assignee
Get your Inventor Badge Today