Patent No. EP4067550 (titled "Installation For Consolidating At Least One Wet Or Dry Laid Fibre Layer To A Fleece Web") was filed by Andritz Ksters on Mar 15, 2022. The application was issued on Jun 14, 2023.
A system for consolidating wet- or dry-laid fiber layers to form nonwoven webs, comprising a circulating belt with an upper run for depositing and displacing fiber layers in a production direction. The system includes a first bonding device for consolidating fiber layers on the upper run, and a lifting device for raising and lowering the upper run to control bonding pressure. The lifting device is operatively connected to the bonding device to maintain a consistent bonding distance during lifting and lowering operations.

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.
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