Ion Exchanged Glasses Via Non-Error Function Compressive Stress Profiles

Patent No. EP3792228 (titled "Ion Exchanged Glasses Via Non-Error Function Compressive Stress Profiles") was filed by Corning Incorporated on Feb 27, 2013. The application was issued on Jul 31, 2024.

Patent Summary

Glass with non-traditional compressive stress profile for chemical strengthening, comprising a surface region under compressive stress with a maximum stress at the surface and a tensile stress region extending from the depth of layer into the glass. The tensile stress in the second region is determined by a triangle approximation and is limited by a function of glass thickness, ensuring non-frangibility.

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents

EP3792228

CORNING INCORPORATED
Application Number
EP20205970A
Filing Date
Feb 27, 2013
Status
Granted And Under Opposition
Jun 27, 2024
Publication Date
Jul 31, 2024