Oxygenator Water Technologies, Inc. V. Tennant Company

Case Background

On January 27, 2020, Oxygenator Water Technologies, Inc. (OWT) filed a patent infringement lawsuit against Tennant Company (“Tennant”). The case was filed in the United States District Court for the District of Minnesota (D. Minn.). The case was assigned to Judge Katherine M. Menendez and referred to Magistrate Judge David T. Schultz. [Case Number: 0:20cv358]

Cause

Oxygenator Water Technologies, Inc. (OWT), a Minnesota company, accused Tennant, another Minnesota company, of using its patented technology without permission. OWT claimed Tennant’s ec-H2OTM electrolysis modules, found in its floor scrubbers, relied on OWT’s patented method for producing micro and nanobubbles of oxygen in water. According to OWT, Tennant had known about its technology and patents since at least 2007. Despite being approached, Tennant refused to license the technology. OWT’s complaint outlined how Tennant’s products matched the patented technology’s key features. It also accused Tennant of both direct and indirect infringement.

Damages