6 Utility Patents
#88 in Johnston, IA
#2,249 in Iowa
#337,376 in US
#697,961 in the World
Forward Citations = 104
Company Filing History:


Pioneer Hi-bred Int'l Inc.
where one patent can have more than one assignee
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#88 in Johnston, IA
#2,249 in Iowa
#337,376 in US
#697,961 in the World
Company Filing History:


Get your Inventor Badge Today