Pioneer Hi-Bred International advanced that argument, in addition to others, seeking dismissal of a patent marking suit in North Carolina.

FORBES: Target of False Patent Marking Suit to Argue Bounty Hunting Scheme Unconstitutional

Pioneer Hi-Bred International Inc. et al., case number 00-463, in the U.S. District Court for the Middle District of North Carolina.

FORBES: Bayer Must Pay Dow $5M In Fees In Corn Patent Loss

Five years ago Pioneer Hi-Bred International (a subsidiary of DuPont) figured out how to slide a critical gene from corn into sorghum to make a variant with more lysine--an essential amino acid.

FORBES: Chutzpah Science