Anhydrous Lenalidomide Form-I

Patent No. EP2545043 (titled "Anhydrous Lenalidomide Form-I") was filed by Natco Pharma on Mar 8, 2010. The application was issued on Apr 24, 2019.

Patent Family

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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
HOFFMANN EITLE	Jan 24, 2020	-
SPILGIES, JAN-HENDRIK, C/O HOFFMAN - EITLE	Jan 24, 2020	-

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 19, 2021
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Feb 16, 2021
Termination of the opposition proceedings with maintenance of patent
Nov 10, 2020
(Electronic) Receipt
Nov 10, 2020
Advice of delivery
Nov 10, 2020
Letter accompanying subsequently filed items
Nov 5, 2020
Acknowledgement of a document
Nov 5, 2020
Decision to discontinue the opposition proceedings
Sep 22, 2020
Brief communication - Opposition proceedings
Sep 22, 2020
Brief communication - Opposition proceedings
Sep 17, 2020
(Electronic) Receipt
Sep 17, 2020
Letter regarding the opposition procedure (no time limit)
Sep 17, 2020
Withdrawal of an opposition
Aug 19, 2020
Brief communication - Opposition proceedings
Aug 14, 2020
(Electronic) Receipt
Aug 14, 2020
Letter regarding the opposition procedure (no time limit)
Aug 14, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jun 10, 2020
Brief communication - Opposition proceedings
Jun 10, 2020
Grant of extension of time limit (opposition procedure)
Jun 4, 2020
(Electronic) Receipt
Jun 4, 2020
Letter accompanying subsequently filed items
Jun 4, 2020
Letter regarding the opposition procedure (no time limit)
Jun 2, 2020
(Electronic) Receipt
Jun 2, 2020
Letter accompanying subsequently filed items
Jun 2, 2020
Request for extension of time limit
Feb 7, 2020
Communication of a notice of opposition and request to file observations
Feb 7, 2020
Notice of further oppositions to opponent(s)
Jan 30, 2020
Communication of a notice of opposition - first information to patent proprietor
Jan 24, 2020
(Electronic) Receipt
Jan 24, 2020
Citation in opposition procedure - 001
Jan 24, 2020
Citation in opposition procedure - 002
Jan 24, 2020
Citation in opposition procedure - 003
Jan 24, 2020
Citation in opposition procedure - 004
Jan 24, 2020
Citation in opposition procedure - 005
Jan 24, 2020
Citation in opposition procedure - 006
Jan 24, 2020
Citation in opposition procedure - 007
Jan 24, 2020
Consolidated list of cited opposition documents
Jan 24, 2020
International publication (Pamphlet)
Jan 24, 2020
Notice of opposition
Jan 24, 2020
Notice of opposition
May 7, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 28, 2019
Decision to grant a European patent
Jan 25, 2019
(Electronic) Receipt
Jan 25, 2019
Filing of the translations of the claims
Jan 25, 2019
French translation of claims
Jan 25, 2019
German translation of the claims
Jan 25, 2019
Letter accompanying subsequently filed items
Nov 23, 2018
Annex to the communication about intention to grant a European patent
Nov 23, 2018
Bibliographic data of the European patent application
Nov 23, 2018
Communication about intention to grant a European patent
Nov 23, 2018
Intention to grant (signatures)
Nov 23, 2018
Text intended for grant (clean copy)
Nov 23, 2018
Text intended for grant (version for approval)
Nov 20, 2018
Annex to the communication
Nov 20, 2018
Minutes of the oral proceedings (examining division)
Nov 20, 2018
Minutes of the oral proceedings (examining division)
Nov 20, 2018
Minutes of the oral proceedings (examining division)
Nov 20, 2018
Provision of a copy of the minutes of oral proceedings
Aug 20, 2018
(Electronic) Receipt
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Amended claims with annotations
Aug 20, 2018
Annex
Aug 20, 2018
Annex
Aug 20, 2018
Annex
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Claims
Aug 20, 2018
Letter accompanying subsequently filed items
Aug 20, 2018
Written submission in preparation to/during oral proceedings
Apr 19, 2018
(Electronic) Receipt
Apr 19, 2018
Advice of delivery
Apr 19, 2018
Letter accompanying subsequently filed items
Apr 17, 2018
Notification concerning the date of oral proceedings
Apr 17, 2018
Summons to attend oral proceedings
Apr 5, 2018
(Electronic) Receipt
Apr 5, 2018
(Electronic) Receipt
Apr 5, 2018
Advice of delivery
Apr 5, 2018
Annex
Apr 5, 2018
Letter accompanying subsequently filed items
Apr 5, 2018
Letter accompanying subsequently filed items
Apr 5, 2018
Letter dealing with oral proceedings
Mar 27, 2018
Annex to the communication
Mar 27, 2018
Preparation for oral proceedings
Mar 27, 2018
Summons to attend oral proceedings
Nov 20, 2017
(Electronic) Receipt
Nov 20, 2017
Amended claims with annotations
Nov 20, 2017
Amended description with annotations
Nov 20, 2017
Claims
Nov 20, 2017
Description
Nov 20, 2017
Letter accompanying subsequently filed items
Nov 20, 2017
Reply to communication from the Examining Division
Jul 19, 2017
Annex to the communication
Jul 19, 2017
Communication from the Examining Division
Jun 12, 2017
Communication of amended entries concerning the representative
Jun 7, 2017
Submission concerning change of applicant's representative
Jun 6, 2017
Submission concerning change of applicant's representative
Sep 21, 2016
Decision to allow further processing
Sep 8, 2016
(Electronic) Receipt
Sep 8, 2016
Amended claims with annotations
Sep 8, 2016
Amended description with annotations
Sep 8, 2016
Annex
Sep 8, 2016
Claims
Sep 8, 2016
Description
Sep 8, 2016
Letter accompanying subsequently filed items
Sep 8, 2016
Reply to communication from the Examining Division
Jul 26, 2016
Application deemed to be withdrawn (no reply to communication from the Examining Division)
May 19, 2016
Transmittal of third party observations to applicant
May 11, 2016
Observations by third parties
May 11, 2016
Observations by third parties
May 11, 2016
Observations by third parties
May 11, 2016
Patent document filed by a Third party
May 11, 2016
Patent document filed by a Third party
May 11, 2016
Patent document filed by a Third party
May 11, 2016
Patent document filed by a Third party
May 11, 2016
Patent document filed by a Third party
May 11, 2016
Patent document filed by a Third party
Apr 11, 2016
Grant of extension of time limit (examination procedure)
Apr 5, 2016
(Electronic) Receipt
Apr 5, 2016
Letter accompanying subsequently filed items
Apr 5, 2016
Request for extension of time limit to communication from the Examining Division
Dec 11, 2015
Annex to the communication
Dec 11, 2015
Communication from the Examining Division
Sep 24, 2015
(Electronic) Receipt
Sep 24, 2015
Amended claims with annotations
Sep 24, 2015
Claims
Sep 24, 2015
Letter accompanying subsequently filed items
Sep 24, 2015
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Sep 24, 2015
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Sep 24, 2015
Reply to communication from the Examining Division
Sep 8, 2014
(Electronic) Receipt
Sep 8, 2014
Amended claims with annotations
Sep 8, 2014
Annex
Sep 8, 2014
Annex
Sep 8, 2014
Claims
Sep 8, 2014
Letter accompanying subsequently filed items
Sep 8, 2014
Reply to communication from the Examining Division
Jul 9, 2014
Grant of extension of time limit (examination procedure)
Jul 4, 2014
(Electronic) Receipt
Jul 4, 2014
Letter accompanying subsequently filed items
Jul 4, 2014
Request for extension of time limit to communication from the Examining Division
Feb 26, 2014
Annex to the communication
Feb 26, 2014
Communication from the Examining Division
Sep 23, 2013
Transmittal of third party observations to applicant
Sep 5, 2013
Non-patent literature filed by a third party
Sep 5, 2013
Non-patent literature filed by a third party
Sep 5, 2013
Observations by third parties
Sep 5, 2013
Patent document filed by a Third party
Sep 5, 2013
Patent document filed by a Third party
May 17, 2013
(Electronic) Receipt
May 17, 2013
Amended description filed after receipt of (European) search report
May 17, 2013
Amendments received before examination
May 17, 2013
Amendments received before examination
May 17, 2013
Letter accompanying subsequently filed items
Dec 19, 2012
Notification on forthcoming publication of bibliographic data
Nov 7, 2012
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Oct 17, 2012
Communication to designated inventor
Oct 17, 2012
Communication to designated inventor
Oct 17, 2012
Communication to designated inventor
Oct 17, 2012
Communication to designated inventor
Oct 17, 2012
Communication to designated inventor
Oct 17, 2012
Communication to designated inventor
Oct 8, 2012
(Electronic) Receipt
Oct 8, 2012
Amended claims filed after receipt of (European) search report
Oct 8, 2012
Amended claims with annotations
Oct 8, 2012
Amendments received before examination
Oct 8, 2012
Annex
Oct 8, 2012
Request for entry into the European phase
Oct 2, 2012
Notification of the recording of a change
Sep 18, 2012
Annexes to the international preliminary examination report
Sep 18, 2012
Copy of the international preliminary examination report
Aug 28, 2012
Notification of the recording of a change
Jul 20, 2012
Information on entry into European phase
Jun 18, 2012
Annex to International preliminary examination report
Jun 18, 2012
International preliminary examination report
Jun 18, 2012
International preliminary examination report
Jun 18, 2012
International preliminary examination report - free text sheet
Jun 18, 2012
International preliminary examination report - free text sheet
Jun 18, 2012
International preliminary examination report - points I-VIII
Jun 18, 2012
International preliminary examination report - points I-VIII
Jun 18, 2012
Notification of documents sent to WIPO
Jun 18, 2012
Transmittal of International Preliminary Examination Report
Mar 30, 2012
Written opinion
Mar 30, 2012
Written opinion - free text sheet
Mar 30, 2012
Written opinion - points I-VIII
Feb 23, 2012
Free text
Feb 8, 2012
Amendments of documents (Article 19 PCT)
Feb 8, 2012
PCT(IPEA): Amended sheet - claims
Feb 8, 2012
Statement under Art. 19 PCT
Jan 26, 2012
Letter regarding PCTII procedure
Jan 23, 2012
Notification of documents sent to WIPO
Jan 23, 2012
Notification of receipt of demand
Jan 7, 2012
PCT demand form
Jan 7, 2012
PCT(IPEA): Amended sheet - claims
Jan 7, 2012
PCT(IPEA): Amended sheet - claims
Jan 7, 2012
Submission concerning representation
Dec 30, 2011
Document concerning fees and payments
Dec 30, 2011
Letter regarding PCTII procedure
Dec 30, 2011
PCT demand form
Dec 30, 2011
PCT(IPEA): Amended sheet - claims
Dec 30, 2011
PCT(IPEA): Amended sheet - claims
Dec 30, 2011
Submission concerning representation
Sep 15, 2011
Copy of the international search report
Sep 15, 2011
PCT(IB): Amended sheet (Article 19)
Sep 15, 2011
Published international application - A1
Sep 15, 2011
Statement under Art. 19 PCT
Nov 18, 2010
Written opinion of the ISA, boxes No. I to VIII
Nov 18, 2010
Written opinion of the ISA, cover sheet
Nov 18, 2010
Written opinion of the ISA, supplemental box
Jun 23, 2010
Abstract
Jun 23, 2010
Claims
Jun 23, 2010
Description
Jun 23, 2010
Drawings

EP2545043

NATCO PHARMA

Application Number: EP10725291A
Filing Date: Mar 8, 2010
Status: Granted And Under Opposition; Mar 22, 2019
Publication Date: Apr 24, 2019
External Links: Slate, Register , Google Patents

IP Verse

Anhydrous Lenalidomide Form-I

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2545043