Silicone Elastomer-Silicone Hydrogel Hybrid Contact Lenses

Patent No. EP3446159 (titled "Silicone Elastomer-Silicone Hydrogel Hybrid Contact Lenses") was filed by Coopervision on Apr 20, 2017. The application was issued on Jun 14, 2023.

Patent Summary

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.

CompanyOpposition DateRepresentative
ALCONMar 13, 2024BREUER

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

EP3446159

COOPERVISION
Application Number
EP17720214A
Filing Date
Apr 20, 2017
Status
Revoked
Mar 14, 2025
Publication Date
Jun 14, 2023