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The patent EP2451435 was granted to Hope Medical Enterprises on Dec 1, 2021. The application was filed on Jul 7, 2010 under application number EP10797770A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| SHIMAMURA | Jul 31, 2018 | KADOR & PARTNER PART MBB | - |
| DR FRANZ KOHLER CHEMIE | Jul 30, 2018 | BLUMBACH ZINNGREBE PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | GB500489 |
| DESCRIPTION | US2944396 |
| DESCRIPTION | US3536809 |
| DESCRIPTION | US3598123 |
| DESCRIPTION | US3845770 |
| DESCRIPTION | US3916899 |
| DESCRIPTION | US4008719 |
| DESCRIPTION | US4328245 |
| DESCRIPTION | US4409239 |
| DESCRIPTION | US4410545 |
| DESCRIPTION | US4543190 |
| DESCRIPTION | US5059595 |
| DESCRIPTION | US5073543 |
| DESCRIPTION | US5120548 |
| DESCRIPTION | US5354556 |
| DESCRIPTION | US5387398 |
| DESCRIPTION | US5405533 |
| DESCRIPTION | US5501799 |
| DESCRIPTION | US5560822 |
| DESCRIPTION | US5591767 |
| DESCRIPTION | US5612059 |
| DESCRIPTION | US5639476 |
| DESCRIPTION | US5639480 |
| DESCRIPTION | US5674533 |
| DESCRIPTION | US5698220 |
| DESCRIPTION | US5709874 |
| DESCRIPTION | US5733566 |
| DESCRIPTION | US5739108 |
| DESCRIPTION | US5759542 |
| DESCRIPTION | US5798119 |
| DESCRIPTION | US5840674 |
| DESCRIPTION | US5891474 |
| DESCRIPTION | US5900252 |
| DESCRIPTION | US5922356 |
| DESCRIPTION | US5972366 |
| DESCRIPTION | US5972891 |
| DESCRIPTION | US5980945 |
| DESCRIPTION | US5985307 |
| DESCRIPTION | US5993855 |
| DESCRIPTION | US6004534 |
| DESCRIPTION | US6039975 |
| DESCRIPTION | US6045830 |
| DESCRIPTION | US6048736 |
| DESCRIPTION | US6060082 |
| DESCRIPTION | US6071495 |
| DESCRIPTION | US6087324 |
| DESCRIPTION | US6113943 |
| DESCRIPTION | US6120751 |
| DESCRIPTION | US6131570 |
| DESCRIPTION | US6139865 |
| DESCRIPTION | US6197350 |
| DESCRIPTION | US6248363 |
| DESCRIPTION | US6253872 |
| DESCRIPTION | US6264970 |
| DESCRIPTION | US6267981 |
| DESCRIPTION | US6271359 |
| DESCRIPTION | US6274552 |
| DESCRIPTION | US6316652 |
| DESCRIPTION | US6350458 |
| DESCRIPTION | US6376461 |
| DESCRIPTION | US6419961 |
| DESCRIPTION | US6589548 |
| DESCRIPTION | US6613358 |
| DESCRIPTION | US6699500 |
| DESCRIPTION | WO0217918 |
| EXAMINATION | GB500489 |
| INTERNATIONAL-SEARCH-REPORT | US2006177523 |
| INTERNATIONAL-SEARCH-REPORT | US2763531 |
| INTERNATIONAL-SEARCH-REPORT | US6007777 |
| OPPOSITION | GB500489 |
| OPPOSITION | US2006177523 |
| OPPOSITION | US2763531 |
| OPPOSITION | US6007777 |
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.
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(Electronic) Receipt
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Description
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Observations by third parties
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(Electronic) Receipt
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Description
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Letter accompanying subsequently filed items
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Communication from the Examining Division
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(Electronic) Receipt
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Aug 4, 2016
Amended claims with annotations
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Claims
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Aug 4, 2016
Letter accompanying subsequently filed items
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Annex to the communication
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Apr 6, 2016
Communication from the Examining Division
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Examination started
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Observations by third parties
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Jun 10, 2015
Patent document filed by a Third party
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Nov 4, 2013
(Electronic) Receipt
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Nov 4, 2013
Annex
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Nov 4, 2013
Annex
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Nov 4, 2013
Annex
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Nov 4, 2013
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Nov 4, 2013
Annex
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Nov 4, 2013
Letter accompanying subsequently filed items
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Nov 4, 2013
Reply to Written Opinion prepared by the EPO
Search/Exam
May 15, 2013
Apr 26, 2013
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European search opinion
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Apr 26, 2013
Supplementary European search report
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Sep 14, 2012
(Electronic) Receipt
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Sep 14, 2012
Sep 14, 2012
Amended claims with annotations
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Sep 14, 2012
Amendments received before examination
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Sep 14, 2012
Letter accompanying subsequently filed items
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Apr 18, 2012
Mar 15, 2012
Feb 8, 2012
(Electronic) Receipt
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Feb 8, 2012
Feb 8, 2012
Amended claims with annotations
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Feb 8, 2012
Matter concerning the application
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Feb 8, 2012
Request for entry into the European phase
Search/Exam
Jan 17, 2012
Nov 18, 2011
Information on entry into European phase
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Feb 4, 2011
Jan 18, 2011
Notification of election of EPO
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Jan 13, 2011
Copy of the international search report
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Jan 13, 2011
Published international application - A1
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