Plaintiffs Inpres, Inc. and TWM IP LLC have filed a patent infringement lawsuit against Alltrista Plastics LLC concerning U.S. Patent No. 9,585,460 (the “‘460 Patent”). The plaintiffs allege that the defendant has infringed upon the ‘460 Patent, which relates to a screw-based dispenser system with a locking elevator mechanism, and is seeking relief, including damages and an injunction. The plaintiffs claim that the defendant’s products unlawfully replicate the patented technology and that the infringement has been willful.
The accused patent, titled “Screw-Based Dispenser Having Locking Elevator and Elevator Retention Mechanism,” was issued on March 7, 2017. It specifically addresses issues with propel/repel dispensers used for consumer products such as lip balms and creams, particularly solving a problem known as “up-elevator,” where the elevator mechanism in the dispenser advances too soon.
According to the Complaint, Alltrista, operating as Jarden Plastics in 2018, purchased a large quantity of lip balm dispensers from Inpres, which incorporated the patented elevator retention mechanism. Alltrista was provided detailed specifications and engineering drawings by Inpres under confidentiality agreements, highlighting the proprietary nature of the materials. However, after returning most of the purchased units, Alltrista allegedly used these specifications to develop its own dispensers incorporating the patented technology.