US Patent 7845615 Plastic castings molds

Patent 7845615 was granted and assigned to Novartis on December, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Novartis

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78456150

Patent Inventor Names

John Martin Lally0

Robert Allen Janssen0

Peter Hagmann0

Willi Hoerner0

Robert Earl Szokolay0

Axel Heinrich0

Bernhard Seiferling0

Date of Patent

December 7, 2010

Patent Application Number

109403430

Date Filed

September 14, 2004

Patent Primary Examiner

‌

Mathieu D. Vargot

Patent abstract

The invention is concerned with the problem that with known plastic casting moulds, especially those of polypropylene, the lenses produced with these moulds have a slippery surface. The invention solves this problem through the use of polymers which are notable for their very low oxygen permeability.