07820941 is referenced by 24 patents and cites 30 patents.

The present invention relates to a process for laser scoring of flat glass sheets. The process comprises manipulating a laser beam having a substantially Gaussian intensity profile to produce an elongated heating zone on the glass sheet to be scored, the elongated heating zone having a central portion with a lower temperature than a temperature of an outer portion of the heating zone. An initial crack is made in the glass sheet, the elongated heating zone is traversed across the glass sheet coincident with the initial crack, and the heated glass is thermally shocked by directing a cooled liquid against the heated glass, thus propagating the crack. The scored glass sheet may thereafter be broken by applying bending techniques as are known in the art.

Title
Process and apparatus for scoring a brittle material
Application Number
10/903701
Publication Number
7820941 (B2)
Application Date
July 30, 2004
Publication Date
October 26, 2010
Inventor
Harry E Menegus
Beaver Dams
NY, US
James W Brown
Painted Post
NY, US
Agent
Kevin M Able
Assignee
Corning Incorporated
NY, US
IPC
B23K 26/00
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