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Compositions And Methods For Promoting Hemostasis And Other Physiological Activities

Patent No. EP2283851 (titled "Compositions And Methods For Promoting Hemostasis And Other Physiological Activities") was filed by Massachusetts Institute OF Technology on Apr 25, 2006. The application was issued on Jun 7, 2023.

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Patent Oppositions

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
EIP	Mar 6, 2024	EIP

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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Jan 26, 2026
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 26, 2026
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Oct 23, 2025
Decision revoking the European patent
Oct 23, 2025
Decision revoking the European patent
Oct 20, 2025
(Electronic) Receipt
Oct 20, 2025
Letter accompanying subsequently filed items
Oct 20, 2025
Request for revocation of patent
Sep 3, 2025
Brief communication - Opposition proceedings
Sep 2, 2025
Brief communication - Opposition proceedings
Aug 29, 2025
(Electronic) Receipt
Aug 29, 2025
Letter accompanying subsequently filed items
Aug 29, 2025
Request for interpreters during oral proceedings
Aug 29, 2025
Written submission in preparation to/during oral proceedings
Aug 27, 2025
(Electronic) Receipt
Aug 27, 2025
Letter accompanying subsequently filed items
Aug 27, 2025
Request for interpreters during oral proceedings
Mar 11, 2025
Annex to the communication - opposition
Mar 11, 2025
Information concerning oral proceedings
Mar 11, 2025
Scanned annex to a communication - opposition procedure
Mar 11, 2025
Summons to attend oral proceedings
Mar 11, 2025
Summons to attend oral proceedings
Jul 25, 2024
Brief communication - Opposition proceedings
Jul 22, 2024
(Electronic) Receipt
Jul 22, 2024
Citation in opposition procedure - 008
Jul 22, 2024
Citation in opposition procedure - 017
Jul 22, 2024
Citation in opposition procedure - 018
Jul 22, 2024
Consolidated list of cited opposition documents
Jul 22, 2024
Letter accompanying subsequently filed items
Jul 22, 2024
Reply of the patent proprietor to the notice(s) of opposition
Mar 27, 2024
Brief communication - Opposition proceedings
Mar 22, 2024
Communication of a notice of opposition and request to file observations
Mar 22, 2024
Notice of further oppositions to opponent(s)
Mar 21, 2024
(Electronic) Receipt
Mar 21, 2024
Letter accompanying subsequently filed items
Mar 21, 2024
Letter regarding the opposition procedure (no time limit)
Mar 13, 2024
Communication of a notice of opposition - first information to patent proprietor
Mar 6, 2024
(Electronic) Receipt
Mar 6, 2024
Citation in opposition procedure - 001
Mar 6, 2024
Citation in opposition procedure - 001
Mar 6, 2024
Citation in opposition procedure - 002
Mar 6, 2024
Citation in opposition procedure - 002
Mar 6, 2024
Citation in opposition procedure - 003
Mar 6, 2024
Citation in opposition procedure - 004
Mar 6, 2024
Citation in opposition procedure - 004
Mar 6, 2024
Citation in opposition procedure - 005
Mar 6, 2024
Citation in opposition procedure - 005
Mar 6, 2024
Citation in opposition procedure - 006
Mar 6, 2024
Citation in opposition procedure - 007
Mar 6, 2024
Citation in opposition procedure - 008
Mar 6, 2024
Citation in opposition procedure - 009
Mar 6, 2024
Citation in opposition procedure - 010
Mar 6, 2024
Citation in opposition procedure - 011
Mar 6, 2024
Citation in opposition procedure - 012
Mar 6, 2024
Citation in opposition procedure - 013
Mar 6, 2024
Citation in opposition procedure - 013
Mar 6, 2024
Citation in opposition procedure - 013
Mar 6, 2024
Citation in opposition procedure - 014
Mar 6, 2024
Citation in opposition procedure - 015
Mar 6, 2024
Citation in opposition procedure - 016
Mar 6, 2024
Notice of opposition
Mar 6, 2024
Notice of opposition
Jun 20, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 11, 2023
Decision to grant a European patent
Mar 16, 2023
(Electronic) Receipt
Mar 16, 2023
Filing of the translations of the claims
Mar 16, 2023
French translation of claims
Mar 16, 2023
German translation of the claims
Mar 16, 2023
Letter accompanying subsequently filed items
Nov 9, 2022
Annex to the communication about intention to grant a European patent
Nov 9, 2022
Bibliographic data of the European patent application
Nov 9, 2022
Communication about intention to grant a European patent
Nov 9, 2022
Intention to grant (signatures)
Nov 9, 2022
Text intended for grant (clean copy)
Nov 9, 2022
Text intended for grant (version for approval)
Sep 12, 2022
Decision to allow further processing
Sep 1, 2022
(Electronic) Receipt
Sep 1, 2022
Amended claims with annotations
Sep 1, 2022
Claims
Sep 1, 2022
Letter accompanying subsequently filed items
Sep 1, 2022
Request for further processing
Jun 22, 2022
Application deemed to be withdrawn (no reply to communication from the Examining Division)
Mar 18, 2022
Grant of extension of time limit (examination procedure)
Mar 15, 2022
(Electronic) Receipt
Mar 15, 2022
Letter accompanying subsequently filed items
Mar 15, 2022
Request for extension of time limit to communication from the Examining Division
Nov 17, 2021
Annex to the communication
Nov 17, 2021
Communication from the Examining Division
Oct 26, 2021
Acknowledgement of receipt of third party observations
Oct 26, 2021
Transmittal of third party observations to applicant
Oct 21, 2021
(Electronic) Receipt
Oct 21, 2021
Bibliographic data of the European patent application
Oct 21, 2021
Communication about intention to grant a European patent
Oct 21, 2021
Intention to grant (signatures)
Oct 21, 2021
Letter accompanying subsequently filed items
Oct 21, 2021
Non-patent literature filed by a third party
Oct 21, 2021
Observations by third parties
Oct 21, 2021
Patent document filed by a Third party
Oct 21, 2021
Text intended for grant (clean copy)
Oct 21, 2021
Text intended for grant (sequence listing)
Oct 21, 2021
Text intended for grant (version for approval)
Jul 14, 2021
(Electronic) Receipt
Jul 14, 2021
Amended claims with annotations
Jul 14, 2021
Claims
Jul 14, 2021
Letter accompanying subsequently filed items
Jul 14, 2021
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Jul 14, 2021
Non-patent literature cited during the examination procedure
Jul 14, 2021
Reply to communication from the Examining Division
May 27, 2021
Grant of extension of time limit (examination procedure)
May 21, 2021
(Electronic) Receipt
May 21, 2021
Letter accompanying subsequently filed items
May 21, 2021
Request for extension of time limit to communication from the Examining Division
Jan 13, 2021
Annex to the communication
Jan 13, 2021
Communication from the Examining Division
Nov 3, 2020
Decision to allow further processing
Oct 23, 2020
(Electronic) Receipt
Oct 23, 2020
Annex
Oct 23, 2020
Annex
Oct 23, 2020
Annex
Oct 23, 2020
Annex
Oct 23, 2020
Letter accompanying subsequently filed items
Oct 23, 2020
Request for further processing
Aug 14, 2020
Application deemed to be withdrawn (no reply to communication from the Examining Division)
May 25, 2020
Grant of extension of time limit (examination procedure)
May 18, 2020
(Electronic) Receipt
May 18, 2020
Letter accompanying subsequently filed items
May 18, 2020
Request for extension of time limit to communication from the Examining Division
Jan 14, 2020
Annex to the communication
Jan 14, 2020
Communication from the Examining Division
Oct 8, 2019
(Electronic) Receipt
Oct 8, 2019
Letter accompanying subsequently filed items
Oct 8, 2019
Reply to communication from the Examining Division
Aug 13, 2019
Grant of extension of time limit (examination procedure)
Aug 8, 2019
(Electronic) Receipt
Aug 8, 2019
Letter accompanying subsequently filed items
Aug 8, 2019
Request for extension of time limit to communication from the Examining Division
Apr 5, 2019
Annex to the communication
Apr 5, 2019
Communication from the Examining Division
Jan 17, 2019
(Electronic) Receipt
Jan 17, 2019
Letter accompanying subsequently filed items
Jan 17, 2019
Reply to communication from the Examining Division
Nov 7, 2018
Grant of extension of time limit (examination procedure)
Oct 26, 2018
(Electronic) Receipt
Oct 26, 2018
Letter accompanying subsequently filed items
Oct 26, 2018
Matter concerning the application
Jul 12, 2018
Annex to the communication
Jul 12, 2018
Communication from the Examining Division
May 3, 2018
(Electronic) Receipt
May 3, 2018
Annex
May 3, 2018
Annex
May 3, 2018
Letter accompanying subsequently filed items
May 3, 2018
Reply to communication from the Examining Division
Apr 4, 2018
Confirmation of revocation of automatic debit order
Mar 28, 2018
Letter relating to the automatic debiting procedure
Mar 9, 2018
Grant of extension of time limit (examination procedure)
Mar 5, 2018
(Electronic) Receipt
Mar 5, 2018
Letter accompanying subsequently filed items
Mar 5, 2018
Request for extension of time limit to communication from the Examining Division
Oct 24, 2017
Annex to the communication
Oct 24, 2017
Communication from the Examining Division
Jul 3, 2017
(Electronic) Receipt
Jul 3, 2017
Amended claims with annotations
Jul 3, 2017
Annex
Jul 3, 2017
Annex
Jul 3, 2017
Annex
Jul 3, 2017
Annex
Jul 3, 2017
Annex
Jul 3, 2017
Annex
Jul 3, 2017
Claims
Jul 3, 2017
Letter accompanying subsequently filed items
Jul 3, 2017
Reply to communication from the Examining Division
May 10, 2017
Grant of extension of time limit (examination procedure)
May 2, 2017
Request for extension of time limit to communication from the Examining Division
Feb 20, 2017
Annex to the communication
Feb 20, 2017
Communication from the Examining Division
Feb 1, 2017
Annex
Feb 1, 2017
Claims
Feb 1, 2017
Reply to communication from the Examining Division
Nov 16, 2016
Grant of extension of time limit (examination procedure)
Nov 10, 2016
Request for extension of time limit to communication from the Examining Division
Jul 22, 2016
Annex to the communication
Jul 22, 2016
Communication from the Examining Division
Jun 6, 2016
Acknowledgement of receipt of third party observations
Jun 6, 2016
Transmittal of third party observations to applicant
May 27, 2016
Observations by third parties
May 27, 2016
Patent document filed by a Third party
Apr 29, 2016
Acknowledgement of receipt of third party observations
Apr 29, 2016
Transmittal of third party observations to applicant
Apr 22, 2016
(Electronic) Receipt
Apr 22, 2016
Citation filed by a third party
Apr 22, 2016
Citation filed by a third party
Apr 22, 2016
Letter accompanying subsequently filed items
Apr 22, 2016
Non-patent literature filed by a third party
Apr 22, 2016
Non-patent literature filed by a third party
Apr 22, 2016
Observations by third parties
Apr 22, 2016
Patent document filed by a Third party
Mar 14, 2016
Amended claims with annotations
Mar 14, 2016
Claims
Mar 14, 2016
Non-patent literature cited during the examination procedure
Mar 14, 2016
Non-patent literature cited during the examination procedure
Mar 14, 2016
Non-patent literature cited during the examination procedure
Mar 14, 2016
Non-patent literature cited during the examination procedure
Mar 14, 2016
Non-patent literature cited during the examination procedure
Mar 14, 2016
Reply to communication from the Examining Division
Nov 4, 2015
Annex to the communication
Nov 4, 2015
Communication from the Examining Division
Oct 2, 2015
Amended claims with annotations
Oct 2, 2015
Claims
Oct 2, 2015
Reply to communication from the Examining Division
Oct 2, 2015
Transmittal of third party observations to applicant
Oct 1, 2015
Amended claims with annotations
Oct 1, 2015
Claims
Oct 1, 2015
Reply to communication from the Examining Division
Sep 28, 2015
Citation filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Non-patent literature filed by a third party
Sep 28, 2015
Observations by third parties
May 22, 2015
Annex to the communication
May 22, 2015
Communication from the Examining Division
May 18, 2015
Examination started
Sep 26, 2014
Submission concerning representation
Apr 12, 2012
Decision to allow further processing
Mar 26, 2012
Amended claims filed after receipt of (European) search report
Mar 26, 2012
Amended claims filed after receipt of (European) search report
Mar 26, 2012
Amended claims with annotations
Mar 26, 2012
Amended claims with annotations
Mar 26, 2012
Cover sheet for fax transmission
Mar 26, 2012
Payment of fees and costs
Mar 26, 2012
Request for further processing
Mar 26, 2012
Request for further processing
Jan 16, 2012
Application deemed to be withdrawn (non-reply to Written Opinion)
Dec 8, 2011
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Jul 20, 2011
Communication of the registration of a transfer or change of name and/or address
Jun 14, 2011
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jun 7, 2011
Submission concerning a transfer of rights (applicant)
May 24, 2011
Invitation to indicate correct address of inventor
May 18, 2011
Refund of fees
May 17, 2011
Letter which had not been notified
May 11, 2011
Communication regarding the transmission of the European search report
May 11, 2011
European search opinion
May 11, 2011
European search report
Apr 12, 2011
Letter concerning the inventor
Mar 30, 2011
Invitation to indicate correct address of inventor
Mar 22, 2011
Letter which had not been notified
Jan 19, 2011
Notification of forthcoming publication
Dec 13, 2010
Designation of inventor
Dec 13, 2010
Letter concerning the inventor
Nov 10, 2010
Deficiency in designation of inventor
Nov 8, 2010
Confirmation of receipt of (electronically) transmitted priority document
Sep 29, 2010
Abstract
Sep 29, 2010
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Sep 29, 2010
Claims
Sep 29, 2010
Converted Sequence Listing
Sep 29, 2010
Description
Sep 29, 2010
Drawings
Sep 29, 2010
Letter concerning search matters
Sep 29, 2010
Request for grant of a European patent
Sep 29, 2010
Sequence listing
Nov 20, 2006
Priority document (electronically transmitted)
Nov 20, 2006
Priority document (electronically transmitted)

EP2283851

MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Application Number: EP10181924A
Filing Date: Apr 25, 2006
Status: Granted And Under Opposition; May 5, 2023
Publication Date: Jun 7, 2023
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