Fresenius Wins Jury Trial on PharmaSphere Calcium-Drip Patent

Fresenius SE & Co. convinced a federal jury in Delaware to cancel for improper inventorship a PharmaSphere Inc. patent that its ready-to-use calcium infusion infringes.

Two of three infringed claims of US Patent No. 10,130,646—which PharmaSphere’s HQ Specialty Pharma Corp. unit owns and exclusively licenses to co-plaintiff WG Critical Care LLC—are invalid for improper inventorship, according to a verdict issued Aug. 30 in the US District Court for the District of Delaware. Jurors rejected Fresenius’ separate arguments that the patent should be voided as obvious.

• Fresenius Kabi USA LLC conceded in February 2023 that its calcium gluconate in sodium ...