Power Semiconductor

Patent No. EP2525397 (titled "Power Semiconductor") was filed by Ixys Semiconductor on May 16, 2012. The application was issued on Aug 8, 2018.

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.

Company	Opposition Date	Representative
DANFOSS	Jul 15, 2016	KEIL & SCHAAFHAUSEN PATENTANWALTE PARTGMBB

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

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Jul 12, 2018
Decision to maintain the European patent in amended form
Jul 12, 2018
Decision to maintain the European patent in amended form
Jul 6, 2018
Termination of the opposition proceedings with maintenance of patent
Jun 28, 2018
English translation of the claims
Jun 28, 2018
Filing of the translation of the amended claims
Jun 28, 2018
French translation of claims
Jun 28, 2018
Letter concerning fees and payments
Jun 26, 2018
English translation of the claims
Jun 26, 2018
Filing of the translation of the amended claims
Jun 26, 2018
French translation of claims
Jun 26, 2018
Letter concerning fees and payments
Jun 14, 2018
Communication of amended entries
Jun 4, 2018
Request for change of opponent's representative
Mar 21, 2018
Communication of bibliographic data
Mar 21, 2018
Communication to opponent concerning maintenance
Mar 21, 2018
Communication with request to file translations
Mar 8, 2018
Maintenance of the patent with the documents specified in the final decision
Dec 6, 2017
Advice of delivery
Dec 4, 2017
Advice of delivery
Nov 30, 2017
Advice of delivery
Nov 23, 2017
Advice of delivery
Nov 21, 2017
Acknowledgement of a document
Nov 21, 2017
Acknowledgement of a document
Nov 21, 2017
Annex to the communication - opposition
Nov 21, 2017
Decision of the Opposition Division and instruction
Nov 21, 2017
Druckexemplar in opposition procedure
Nov 21, 2017
Grounds for the decision (Annex) - opposition
Nov 21, 2017
Interlocutory decision in opposition proceedings
Nov 21, 2017
Internal form - Opposition/addressees
Nov 21, 2017
Internal form - Opposition/addressees
Nov 21, 2017
Means of redress
Nov 21, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 21, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 21, 2017
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 21, 2017
Provision of a copy of the minutes - opposition procedure
Nov 21, 2017
Scanned annex to a communication - opposition procedure
Sep 29, 2017
Information about the result of oral proceedings
Aug 9, 2017
Brief communication - Opposition proceedings
Aug 3, 2017
Amended claims with annotations
Aug 3, 2017
Amended claims with annotations
Aug 3, 2017
Amended claims with annotations
Aug 3, 2017
Claims
Aug 3, 2017
Claims
Aug 3, 2017
Claims
Aug 3, 2017
Description
Aug 3, 2017
Description
Aug 3, 2017
Description
Aug 3, 2017
Description
Aug 3, 2017
Written submission in preparation to/during oral proceedings
Jul 31, 2017
Brief communication - Opposition proceedings
Jul 28, 2017
Amended claims with annotations
Jul 28, 2017
Amended claims with annotations
Jul 28, 2017
Amended claims with annotations
Jul 28, 2017
Claims
Jul 28, 2017
Claims
Jul 28, 2017
Claims
Jul 28, 2017
Description
Jul 28, 2017
Description
Jul 28, 2017
Description
Jul 28, 2017
Description
Jul 28, 2017
Written submission in preparation to/during oral proceedings
Jul 27, 2017
Brief communication - Opposition proceedings
Jul 26, 2017
Written submission in preparation to/during oral proceedings
Jul 19, 2017
Request for interpreters during oral proceedings
Mar 6, 2017
Brief communication - Opposition proceedings
Mar 1, 2017
Request for interpreters during oral proceedings
Feb 24, 2017
Advice of delivery
Feb 24, 2017
Advice of delivery
Feb 21, 2017
Advice of delivery
Feb 20, 2017
Acknowledgement of a document
Feb 20, 2017
Acknowledgement of a document
Feb 20, 2017
Annex to the communication - opposition
Feb 20, 2017
Information concerning oral proceedings
Feb 20, 2017
Information concerning oral proceedings
Feb 20, 2017
Preparation for oral proceedings
Feb 20, 2017
Summons to attend oral proceedings
Feb 20, 2017
Summons to attend oral proceedings
Feb 15, 2017
Information about the result of oral proceedings
Jan 11, 2017
Brief communication - Opposition proceedings
Jan 9, 2017
Amended claims with annotations
Jan 9, 2017
Claims
Jan 9, 2017
Reply of the patent proprietor to the notice(s) of opposition
Jan 4, 2017
Amended claims with annotations
Jan 4, 2017
Claims
Jan 4, 2017
Reply of the patent proprietor to the notice(s) of opposition
Aug 25, 2016
Communication of a notice of opposition and request to file observations
Aug 25, 2016
Notice of further oppositions to opponent(s)
Jul 21, 2016
Communication of a notice of opposition - first information to patent proprietor
Jul 15, 2016
(Electronic) Receipt
Jul 15, 2016
Any annexes (other than citation) to an opposition letter
Jul 15, 2016
Non-patent literature cited during the opposition procedure
Jul 15, 2016
Non-patent literature cited during the opposition procedure
Jul 15, 2016
Notice of opposition
Jul 15, 2016
Notice of opposition
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Jul 15, 2016
Patent document cited during the opposition procedure
Oct 22, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 13, 2015
Confirmation of the correction of a decision
Sep 24, 2015
Decision to grant a European patent
Sep 5, 2015
English translation of the claims
Sep 5, 2015
Filing of the translations of the claims
Sep 5, 2015
French translation of claims
Sep 5, 2015
Payment of fees and costs
Jun 9, 2015
Brief communication to applicant/representative
May 28, 2015
Letter concerning the inventor
May 28, 2015
Refund of fees
May 13, 2015
Bibliographic data of the European patent application
May 13, 2015
Communication about intention to grant a European patent
May 13, 2015
Intention to grant (signatures)
May 13, 2015
Text intended for grant (clean copy)
May 13, 2015
Text intended for grant (version for approval)
May 7, 2015
Payment of fees and costs
Jan 14, 2014
Claims
Jan 14, 2014
Reply to communication from the Examining Division
Jan 13, 2014
Claims
Jan 13, 2014
Reply to communication from the Examining Division
Dec 3, 2013
CDS Clean up - amended data concerning the representative for the applicant
Nov 8, 2013
Submission concerning representation
Sep 2, 2013
Annex to the communication
Sep 2, 2013
Communication from the Examining Division
Aug 19, 2013
Reply to invitation to file a copy of priority search results
Aug 14, 2013
Examination started
Aug 12, 2013
Reply to invitation to file a copy of priority search results
Jun 3, 2013
Invitation to file a copy of search results(priority)
May 24, 2013
Amended claims filed after receipt of (European) search report
May 24, 2013
Amended description filed after receipt of (European) search report
May 24, 2013
Amendments received before examination
May 24, 2013
Letter concerning fees and payments
May 15, 2013
Amended claims filed after receipt of (European) search report
May 15, 2013
Amended description filed after receipt of (European) search report
May 15, 2013
Amendments received before examination
May 15, 2013
Letter concerning fees and payments
May 15, 2013
Letter concerning fees and payments
Nov 26, 2012
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Oct 24, 2012
Notification of forthcoming publication
Sep 25, 2012
Communication regarding the transmission of the European search report
Sep 25, 2012
European search opinion
Sep 25, 2012
European search report
Jun 16, 2012
Submission concerning change of applicant's representative
May 31, 2012
Letter concerning the priority
May 31, 2012
Priority document
May 16, 2012
Abstract
May 16, 2012
Claims
May 16, 2012
Description
May 16, 2012
Designation of inventor
May 16, 2012
Drawings
May 16, 2012
Request for grant of a European patent

EP2525397

IXYS SEMICONDUCTOR

Application Number: EP12003854A
Filing Date: May 16, 2012
Status: Patent Maintained As Amended; Jul 6, 2018
Publication Date: Aug 8, 2018
External Links: Slate, Register , Google Patents

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Power Semiconductor

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Dossier Documents

EP2525397