Celanese files sweetener patent infringement suit

Specialty materials company Celanese Corporation said it filed a patent infringement lawsuit in Poland against Falken Trade Polska sp. z o.o. sp.k., a distributor of Acesulfame Potassium (Ace-K), a high-potency sweetener subject to recently granted European Patent No. 2 861 569.

“The complaint alleges that the distributor is selling infringing Ace-K sweetener produced by a Chinese manufacturer,” said Celanese.

“Celanese claims compensation for damages caused by the sale of patent infringing Ace-K.

“Prior to filing this lawsuit, Celanese had successfully obtained a preliminary injunction against the distributor preventing the distributor from continuing to sell infringing Ace-K sweetener.”

Celanese said that in March 2017, Celanese announced it had filed a patent infringement lawsuit in Europe against three Chinese manufacturers of high-potency sweeteners, specifically Acesulfame Potassium (Ace-K).