Stainless steel trolley manufacturer VGK Inc. is suing GM
Stainless Inc. for allegedly infringing its patent for a
process used to manufacture overhead trolley systems for
Pella, Iowa-based VGK
filed the lawsuit against GM Stainless in U.S. District Court
in Iowa on Aug. 20.
VGK was granted a
patent in September 2002 for the process, which is used to
create a curved side of stainless steel rail with increased
VGK alleges that
Branchburg, N.J.-based GM Stainless sold a product that
infringes this patent to Sioux City, Iowa-based AllPower Inc.,
a distributor of packinghouse equipment and supplies.
VGK is seeking to
block GM Stainless from making and selling the products it
alleges were produced illegally as well as damages for past
infringement that are at minimum equal to appropriate royalties
for use of the patent.
A spokeswoman for GM
Stainless declined to comment to AMM, saying
that the company had no knowledge of the lawsuit.