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The patent EP3320004 was granted to Chevron Phillips Chemical LP on Dec 6, 2023. The application was filed on Jun 28, 2016 under application number EP16739324A. 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 |
|---|---|---|---|
| BOREALIS | May 12, 2021 | DEHNS | ADMISSIBLE |
| TOTALENERGIES ONETECH BELGIUM | May 12, 2021 | GARCIA MARTIN | ADMISSIBLE |
| THE DOW CHEMICAL | May 11, 2021 | VO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004059070 |
| DESCRIPTION | US3248179 |
| DESCRIPTION | US4501885 |
| DESCRIPTION | US4588790 |
| DESCRIPTION | US5352749 |
| DESCRIPTION | US5436304 |
| DESCRIPTION | US5565175 |
| DESCRIPTION | US5575979 |
| DESCRIPTION | US5739220 |
| DESCRIPTION | US6107230 |
| DESCRIPTION | US6165929 |
| DESCRIPTION | US6239235 |
| DESCRIPTION | US6262191 |
| DESCRIPTION | US6294494 |
| DESCRIPTION | US6300271 |
| DESCRIPTION | US6316553 |
| DESCRIPTION | US6355594 |
| DESCRIPTION | US6376415 |
| DESCRIPTION | US6388017 |
| DESCRIPTION | US6391816 |
| DESCRIPTION | US6395666 |
| DESCRIPTION | US6524987 |
| DESCRIPTION | US6548441 |
| DESCRIPTION | US6548442 |
| DESCRIPTION | US6576583 |
| DESCRIPTION | US6613712 |
| DESCRIPTION | US6632894 |
| DESCRIPTION | US6667274 |
| DESCRIPTION | US6750302 |
| DESCRIPTION | US6833415 |
| DESCRIPTION | US7026494 |
| DESCRIPTION | US7041617 |
| DESCRIPTION | US7199073 |
| DESCRIPTION | US7226886 |
| DESCRIPTION | US7294599 |
| DESCRIPTION | US7312283 |
| DESCRIPTION | US7517939 |
| DESCRIPTION | US7531606 |
| DESCRIPTION | US7598327 |
| DESCRIPTION | US7601665 |
| DESCRIPTION | US7619047 |
| DESCRIPTION | US7884163 |
| DESCRIPTION | US7919639 |
| DESCRIPTION | US8080681 |
| DESCRIPTION | US8114946 |
| DESCRIPTION | US8309485 |
| DESCRIPTION | US8383754 |
| DESCRIPTION | US8822608 |
| DESCRIPTION | US9023959 |
| DESCRIPTION | US9217049 |
| INTERNATIONAL-SEARCH-REPORT | US2014088271 |
| INTERNATIONAL-SEARCH-REPORT | WO03047752 |
| OPPOSITION | US2014100343 |
| OPPOSITION | US2014179873 |
| OPPOSITION | US6469103 |
| OPPOSITION | US6828394 |
| OPPOSITION | US6908968 |
| OPPOSITION | US8940842 |
| OPPOSITION | WO2006045737 |
| OPPOSITION | WO2006096319 |
| OPPOSITION | WO2014100889 |
| OPPOSITION | WO2016083208 |
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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Decision to grant a European patent
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(Electronic) Receipt
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Filing of the translations of the claims
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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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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Amended claims with annotations
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Claims
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Examination started
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Submission concerning representation
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(Electronic) Receipt
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Amended claims with annotations
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Information on entry into European phase
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Copy of the international search report
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Published international application - A1
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