Trexel gets back microcellular patent rights ...(injection moulding)

MICROCELLULAR moulding developer Trexel, which owns the MuCell process, has successfully appealed against a decision (April 1, 2005) to revoke its European patent 0 952 908.This puts the patent back into force and gives Trexel patent rights over all types of microcellular moulded articles irrespective of the process, or type of blowing agent (physical or chemical) used to form them. It means that microcellular products produced by processes claiming to differ from MuCell are covered by the patent.

The crux of the appeal was wall thickness. The patent had originally bee