ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,960, issued on Jan. 13, was assigned to INTERLAS GMBH & Co. KG (Ummendorf, Germany).
"Method for producing a controlled tear-open and/or tear-off aid for fiber-based web material" was invented by Bernhard Lang (Ummendorf, Germany), Christian Lang (Ummendorf, Germany) and Patricia Hermann (Ummendorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for producing a guided tear-open and/or tear-off aid for paper and/or other fiber-based web materials. The present invention is distinguished in that the material of the paper and/or other fiber-based web material for producing a scoring line is partially sub...