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© Crown Copyright
LG PHILIPS LCD CO LTD v TATUNG (UK) LTD
(Lord Phillips of Worth Matravers, L.CJ., Neuberger and Leveson L.JJ.): December 20, 20061
[2006] EWCA Civ 1774; [2007] R.P.C. 21
Patent—Infringement—Counterclaim for revocation—Amendment to claims—Amendments refused—Patent held invalid and not infringed—Appeal to Court of Appeal—Construction of claim—Added matter—Intermediate generalisation—Lack of clarity.
Key Words: Added subject matter Amendments Clarity Display screen equipment Infringement Patents Revocation Validity
1 Paragraph numbers in this judgment are as assigned by the court.