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Quartz Glass Tube As A Semi-Finished Product For An Optical Component And A Method For Producing Said Quartz Glass Tube

Patent No. EP2804839 (titled "Quartz Glass Tube As A Semi-Finished Product For An Optical Component And A Method For Producing Said Quartz Glass Tube") was filed by Heraeus Quarzglas GmbH & Co. KG on Jan 17, 2013. The application was issued on Apr 20, 2016.

Patent Summary

Quartz glass tube for laser-active optical components, comprising a core region with a circular cross-section and a jacket region with a non-circular contact surface surrounding the core, wherein the jacket region has a refractive index differing from the core region. The tube is produced by elongating a mother pipe comprising a first quartz glass core region and a second quartz glass jacket region with a non-circular contact surface, without using tools or cutting parts.

UPC Cases New

Latest UPC cases involving this patent.

Case Number	Filing Date	Plaintiff	Proceeding Type
UPC_CFI_569/2025	Jun 23, 2025	J Plasma	Counter Claim For Revocation
UPC_CFI_151/2025	Feb 19, 2025	Heraeus Quarzglas	Infringement

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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

Feb 24, 2017
Communication regarding the expiry of opposition period
Apr 21, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 24, 2016
Decision to grant a European patent
Feb 17, 2016
English translation of the claims
Feb 17, 2016
Filing of the translations of the claims
Feb 17, 2016
French translation of claims
Feb 17, 2016
Payment of fees and costs
Oct 26, 2015
Bibliographic data of the European patent application
Oct 26, 2015
Communication about intention to grant a European patent
Oct 26, 2015
Intention to grant (signatures)
Oct 26, 2015
Text intended for grant
Aug 27, 2015
Examination started
May 2, 2015
Priority search results
May 2, 2015
Reply to invitation to file a copy of priority search results
Apr 21, 2015
Invitation to file a copy of search results(priority)
Oct 29, 2014
Notification on forthcoming publication of bibliographic data
Sep 5, 2014
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 22, 2014
Communication to designated inventor
Aug 4, 2014
Copy of the international preliminary report on patentability
Jul 1, 2014
(Electronic) Receipt
Jul 1, 2014
Request for entry into the European phase
Jun 2, 2014
Information on entry into European phase
Sep 13, 2013
Priority document (electronically transmitted)
Jul 25, 2013
Copy of the international search report
Jul 25, 2013
Copy of the international search report
Jul 25, 2013
Published international application - A1
Apr 15, 2013
Written opinion of the ISA, boxes No. I to VIII
Apr 15, 2013
Written opinion of the ISA, cover sheet
Apr 15, 2013
Written opinion of the ISA, supplemental box
Jan 17, 2013
(Electronic) Receipt
Jan 17, 2013
Abstract
Jan 17, 2013
Claims
Jan 17, 2013
Description
Jan 17, 2013
Drawings

EP2804839

HERAEUS QUARZGLAS GMBH & CO. KG

Application Number: EP13700567A
Filing Date: Jan 17, 2013
Status: No Opposition Filed Within Time Limit; Feb 24, 2017
Publication Date: Apr 20, 2016
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