IP Verse

Method And Installation For Dealkalizing Glass Containers Using Liquid

Patent No. EP3997043 (titled "Method And Installation For Dealkalizing Glass Containers Using Liquid") was filed by SGD on Jul 10, 2020. The application was issued on Apr 19, 2023.

Patent Summary

This method dealkalizes the inner face of a glass container wall, such as a vial, by extracting alkaline ions to improve hydrolytic resistance. The process requires the inner wall face to be at a temperature of at least 350°C (preferably 500°C–650°C). A predetermined dose of a treatment liquid containing a reactive substance (e.g., ammonium sulphate dissolved in water) is introduced into the accommodation cavity. This is achieved via an injection head positioned outside and at a distance from the container opening. The liquid is delivered as a spray cone narrow enough relative to the opening to ensure substantially the entire dose enters the cavity, where it reacts under heat to dealkalize the glass.

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Patent Oppositions (4)

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
BORMIOLI PHARMAJan 18, 2024MONELLI
GERRESHEIMER MOULDED GLASS ITALYJan 18, 2024MONELLI
STOELZLE OBERGLASJan 17, 2024BAHRDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWÄLTE, RECHTSANWÄLTE
STOELZLE OBERGLASJan 17, 2024CABINET NONY

Dossier Documents

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EP3997043

SGD
Application Number
EP20753395A
Filing Date
Jul 10, 2020
Status
Granted And Under Opposition
Mar 17, 2023
Publication Date
Apr 19, 2023
External Links
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