GENEVA, July 2 -- STORA ENSO OYJ (P.O. Box 30900101 Helsinki) filed a patent application (PCT/IB2024/062749) for "POLYMER COATED PAPER OR PAPERBOARD" on Dec 17, 2024. With publication no. WO/2025/133898, the details related to the patent application was published on Jun 26, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): BACKFOLK, Kaj (Imatrantie 13 A653100 Lappeenranta), RIBU, Ville (Pursikatu 17 as 2053900 Lappeenranta), TORSSELL, Staffan (Agatvagen 1316860 Bromma)

Abstract: The present invention relates to a paper or paperboard comprising a first coating layer formed by extrusion coati...