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System Comprising Air-To-Air-Heat Exchanger For Heat Recovery And Method For Controlling Defrosting Thereof

Patent No. EP2546581 (titled "System Comprising Air-To-Air-Heat Exchanger For Heat Recovery And Method For Controlling Defrosting Thereof") was filed by IV Produkt on Jul 13, 2012. The application was issued on Aug 30, 2017.

Patent Summary

Patent Family

Patent Oppositions (2)

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
SWEGON FLAKTGROUP SWEDEN	May 29, 2018	WESTPATENT
SWEGON FLAKTGROUP SWEDEN	May 29, 2018	WESTPATENT AB

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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Dec 11, 2023
Refund of fees
Dec 4, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Dec 4, 2023
F3017 Oral Proceedings: Notification of cancellation/postponing
Dec 4, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Dec 4, 2023
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Dec 1, 2023
(Electronic) Receipt
Dec 1, 2023
F3014 Oral Proceedings: Order cancelling/postponing
Dec 1, 2023
Letter accompanying subsequently filed items
Dec 1, 2023
Withdrawal of an appeal
Nov 29, 2023
F3345 Forwarding of submissions to parties
Nov 28, 2023
(Electronic) Receipt
Nov 28, 2023
Letter accompanying subsequently filed items
Nov 28, 2023
Letter dealing with oral proceedings during the appeal procedure
Oct 30, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 30, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 12, 2023
F3004 Communication of the Registry
Oct 12, 2023
F3004 Communication of the Registry
Aug 4, 2023
F3011.1 Oral Proceedings: summons
Aug 4, 2023
F3011.1 Oral Proceedings: summons
Aug 1, 2023
F3010 Oral proceedings: order for summons
Mar 12, 2022
Composition of the board (T)
Feb 3, 2022
Document concerning representation
Feb 3, 2022
Document concerning representation
Feb 3, 2022
Document concerning representation
Feb 3, 2022
Document concerning representation
Dec 15, 2021
F3345 Forwarding of submissions to parties
Dec 8, 2021
(Electronic) Receipt
Dec 8, 2021
Letter accompanying subsequently filed items
Dec 8, 2021
Letter relating to Appeal Procedure
Aug 24, 2021
Consolidated list of documents cited in appeal procedure
Jun 9, 2021
Letter accompanying subsequently filed items
Jun 9, 2021
Request for change of opponent's representative
Jun 1, 2021
F3345 Forwarding of submissions to parties
May 26, 2021
(Electronic) Receipt
May 26, 2021
Letter accompanying subsequently filed items
May 26, 2021
Reply to appeal
Jan 22, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jan 18, 2021
(Electronic) Receipt
Jan 18, 2021
Citation in appeal procedure - 001
Jan 18, 2021
Citation in appeal procedure - 001
Jan 18, 2021
Citation in appeal procedure - 002
Jan 18, 2021
Citation in appeal procedure - 003
Jan 18, 2021
Citation in appeal procedure - 004
Jan 18, 2021
Citation in appeal procedure - 005
Jan 18, 2021
Citation in appeal procedure - 006
Jan 18, 2021
Citation in appeal procedure - 006
Jan 18, 2021
Citation in appeal procedure - 007
Jan 18, 2021
Citation in appeal procedure - 008
Jan 18, 2021
Citation in appeal procedure - 009
Jan 18, 2021
Citation in appeal procedure - 010
Jan 18, 2021
Citation in appeal procedure - 011
Jan 18, 2021
Letter accompanying subsequently filed items
Jan 18, 2021
Statement of grounds of appeal
Nov 23, 2020
F3204 Communication of the file number to the parties
Nov 23, 2020
F3204 Communication of the file number to the parties
Nov 17, 2020
(Electronic) Receipt
Nov 17, 2020
Letter accompanying subsequently filed items
Nov 17, 2020
Notice of appeal
Oct 1, 2020
Advice of delivery
Sep 29, 2020
Advice of delivery
Sep 18, 2020
Annex to the communication - opposition
Sep 18, 2020
Decision of the Opposition Division and instruction
Sep 18, 2020
Decision rejecting the opposition
Sep 18, 2020
Grounds for the decision (Annex) - opposition
Sep 18, 2020
Internal form - Opposition/addressees
Sep 18, 2020
Internal form - Opposition/addressees
Sep 18, 2020
Means of redress
Sep 18, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 18, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 18, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Sep 18, 2020
Provision of a copy of the minutes - opposition procedure
May 3, 2020
General enquiry
Jan 29, 2020
Information about the result of oral proceedings
Jan 27, 2020
Brief communication - Opposition proceedings
Jan 22, 2020
(Electronic) Receipt
Jan 22, 2020
Letter accompanying subsequently filed items
Jan 22, 2020
Written submission in preparation to/during oral proceedings
Jan 8, 2020
Brief communication - Opposition proceedings
Dec 23, 2019
(Electronic) Receipt
Dec 23, 2019
Letter accompanying subsequently filed items
Dec 23, 2019
Written submission in preparation to/during oral proceedings
Dec 4, 2019
Brief communication - Opposition proceedings
Dec 4, 2019
Brief communication - Opposition proceedings
Nov 28, 2019
(Electronic) Receipt
Nov 28, 2019
(Electronic) Receipt
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Amended claims with annotations
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Auxiliary request during Opposition procedure
Nov 28, 2019
Letter accompanying subsequently filed items
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Non-patent literature cited during the opposition procedure
Nov 28, 2019
Request for interpreters during oral proceedings
Nov 28, 2019
Written submission in preparation to/during oral proceedings
Nov 28, 2019
Written submission in preparation to/during oral proceedings
Apr 15, 2019
Advice of delivery
Apr 15, 2019
Advice of delivery
Apr 9, 2019
Advice of delivery
Apr 9, 2019
Advice of delivery
Apr 2, 2019
Annex to the communication - opposition
Apr 2, 2019
Information concerning oral proceedings
Apr 2, 2019
Summons to attend oral proceedings
Apr 2, 2019
Summons to attend oral proceedings
Nov 2, 2018
Brief communication - Opposition proceedings
Oct 26, 2018
(Electronic) Receipt
Oct 26, 2018
Letter accompanying subsequently filed items
Oct 26, 2018
Reply of the patent proprietor to the notice(s) of opposition
Jun 18, 2018
Communication of a notice of opposition and request to file observations
Jun 18, 2018
Notice of further oppositions to opponent(s)
Jun 13, 2018
Refund of fees
Jun 11, 2018
Communication of a notice of opposition - first information to patent proprietor
May 29, 2018
(Electronic) Receipt
May 29, 2018
Any annexes (other than citation) to an opposition letter
May 29, 2018
Non-patent literature cited during the opposition procedure
May 29, 2018
Non-patent literature cited during the opposition procedure
May 29, 2018
Non-patent literature cited during the opposition procedure
May 29, 2018
Non-patent literature cited during the opposition procedure
May 29, 2018
Non-patent literature cited during the opposition procedure
May 29, 2018
Notice of opposition
May 29, 2018
Notice of opposition
May 29, 2018
Patent document cited during the examination procedure
May 29, 2018
Patent document cited during the examination procedure
May 29, 2018
Patent document cited during the examination procedure
May 29, 2018
Patent document cited during the opposition procedure
May 29, 2018
Translation of the evidence during Opposition procedure
May 17, 2018
Submission concerning representation
Aug 31, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 3, 2017
Decision to grant a European patent
Jun 7, 2017
(Electronic) Receipt
Jun 7, 2017
Filing of the translations of the claims
Jun 7, 2017
French translation of claims
Jun 7, 2017
German translation of the claims
Jun 7, 2017
Letter accompanying subsequently filed items
Mar 2, 2017
Bibliographic data of the European patent application
Mar 2, 2017
Communication about intention to grant a European patent
Mar 2, 2017
Intention to grant (signatures)
Mar 2, 2017
Text intended for grant (clean copy)
Mar 2, 2017
Text intended for grant (version for approval)
Feb 3, 2017
Examination started
Dec 4, 2015
Communication of amended entries concerning the representative
Nov 30, 2015
Submission concerning change of applicant's representative
Aug 25, 2014
Acknowledgement of receipt of third party observations
Aug 25, 2014
Transmittal of third party observations to applicant
Aug 16, 2014
Non-patent literature cited during the examination procedure
Aug 16, 2014
Non-patent literature cited during the examination procedure
Aug 16, 2014
Non-patent literature cited during the examination procedure
Aug 16, 2014
Observations by third parties
Jul 16, 2013
(Electronic) Receipt
Jul 16, 2013
Amended claims filed after receipt of (European) search report
Jul 16, 2013
Amended claims with annotations
Jul 16, 2013
Amended description filed after receipt of (European) search report
Jul 16, 2013
Amendments received before examination
Jul 16, 2013
Letter accompanying subsequently filed items
Jan 21, 2013
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Dec 19, 2012
Notification of forthcoming publication
Oct 9, 2012
Communication regarding the transmission of the European search report
Oct 9, 2012
European search opinion
Oct 9, 2012
European search report
Sep 6, 2012
Letter concerning the priority
Sep 6, 2012
Priority document
Sep 5, 2012
Communication to designated inventor
Sep 5, 2012
Communication to designated inventor
Aug 28, 2012
(Electronic) Receipt
Aug 28, 2012
Cover letter for submission of priority search results
Aug 28, 2012
Letter accompanying subsequently filed items
Aug 28, 2012
Priority search results
Aug 24, 2012
(Electronic) Receipt
Aug 24, 2012
Abstract
Aug 24, 2012
Claims
Aug 24, 2012
Description
Aug 24, 2012
Letter accompanying subsequently filed items
Jul 13, 2012
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jul 13, 2012
Designation of inventor
Jul 13, 2012
Designation of inventor
Jul 13, 2012
Drawings
Jul 13, 2012
Request for grant of a European patent
Jul 13, 2012
Specification filed by fax and/or in non-official language

EP2546581

IV PRODUKT

Application Number: EP12176432A
Filing Date: Jul 13, 2012
Status: Opposition Rejected; Dec 8, 2023
Publication Date: Aug 30, 2017
External Links: Slate, Register , Google Patents