The patent EP2580323 was granted to Qiagen on Sep 6, 2023. The application was originally filed on Jun 14, 2011 under application number EP11725436A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number | 
|---|---|
| DESCRIPTION | EP20100001995 | 
| DESCRIPTION | EP20100003759 | 
| DESCRIPTION | EP20100003765 | 
| DESCRIPTION | EP20100003766 | 
| DESCRIPTION | EP20100003767 | 
| EXAMINATION | WO0223156 | 
| EXAMINATION | WO2006039563 | 
| INTERNATIONAL-SEARCH-REPORT | EP1743939 | 
| INTERNATIONAL-SEARCH-REPORT | EP2270151 | 
| INTERNATIONAL-SEARCH-REPORT | US2006188892 | 
| INTERNATIONAL-SEARCH-REPORT | WO2006130632 | 
| INTERNATIONAL-SEARCH-REPORT | WO2009127350 | 
| INTERNATIONAL-SEARCH-REPORT | WO9524498 | 
| OPPOSITION | EP2163621 | 
| OPPOSITION | GB2369822 | 
| OPPOSITION | US2006188892 | 
| OPPOSITION | WO2006039563 | 
| OPPOSITION | WO2006130632 | 
| OPPOSITION | WO2009127350 | 
| OPPOSITION | WO9524498 | 
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | 
|---|---|
| DESCRIPTION | - J. B. A. OKELLO, ANALYTICAL BIOCHEMISTRY, (2010), vol. 400, no. 1, pages 110 - 117 | 
| DESCRIPTION | - R. J. BUESA, M. V. PESHOV, Annals of Diagnostic Pathology, (2009), vol. 13, pages 246 - 256 | 
| EXAMINATION | - OBERLI ANDREA ET AL, "Expression profiling with RNA from formalin-fixed, paraffin-embedded material", BMC MEDICAL GENOMICS, BIOMED CENTRAL LTD, LONDON UK, (20080419), vol. 1, no. 1, ISSN 1755-8794, page 9, XP021040922 | 
| INTERNATIONAL-SEARCH-REPORT | - BioGenex, "Safety Data Sheet EZ DEWAX SOLUTION", (20031030), URL: http://www.biogenex.com/int_msds/931-HK585-EN-1232081898.pdf?PHPSESSID=b382f56e2aa222aec2561f35b9c753e4, (20100909), XP002602420 [Y] 1-15 * the whole document * | 
| INTERNATIONAL-SEARCH-REPORT | - OKELLO J B A ET AL, "Comparison of methods in the recovery of nucleic acids from archival formalin-fixed paraffin-embedded autopsy tissues", ANALYTICAL BIOCHEMISTRY, ACADEMIC PRESS INC, NEW YORK LNKD- DOI:10.1016/J.AB.2010.01.014, vol. 400, no. 1, ISSN 0003-2697, (20100501), pages 110 - 117, (20100115), XP026940236 [AD] 1-15 * the whole document * | 
| INTERNATIONAL-SEARCH-REPORT | - BUESA R J ET AL, "Histology without xylene", ANNALS OF DIAGNOSTIC PATHOLOGY, SAUNDERS, PHILADELPHIA, PA, US LNKD- DOI:10.1016/J.ANNDIAGPATH.2008.12.005, vol. 13, no. 4, ISSN 1092-9134, (20090801), pages 246 - 256, (20090205), XP026301357 [AD] 1-15 * the whole document * | 
| OPPOSITION | - Buffer ATL, URL: www.qiagen.com/us/shop/lab-basics/buffers- and-reagents/buffer- atl/#ord erin gin formati on | 
| OPPOSITION | - FREDRICKS et al., "Paraffin. Removal from Tissue Sections for Digestion and PCR Analysis", BioTechniques, (19990000), vol. 26, no. 2, page 198 , 200 | 
| OPPOSITION | - FREDRICKS et al., "Paraffin. Removal from Tissue Sections for Digestion and PCR Analysis", BioTechniques, (19990000), vol. 26, no. 2, page 198 , 200, XP055494895 | 
| OPPOSITION | - "Kit contents", DNeasy® Blood & Tissue Handbook, QIAGEN, (20060700), pages 1 - 59 | 
| OPPOSITION | - "Kit contents", DNeasy® Blood & Tissue Handbook, QIAGEN, (20060700), pages 1 - 59, XP055494878 | 
| OPPOSITION | - LIN et al., "High-quality genomic DNA extraction from formalin-fixed and paraffin-embedded samples deparaffinized using mineral oil", Analytical Biochemistry, (20091215), vol. 395, no. 2, pages 265 - 267 | 
| OPPOSITION | - LYON et al., "Non-hazardous organic solvents in the paraffin-embedding technique: a rational approach Aliphatic monoesters for clearing and dewaxing: butyfdecanoate", Histochemistry, (19950000), vol. 103, pages 263 - 269 | 
| OPPOSITION | - LYON et al., "Non-hazardous organic solvents in the paraffin-embedding technique: a rational approach Aliphatic monoesters for clearing and dewaxing: butyfdecanoate", Histochemistry, (19950000), vol. 103, pages 263 - 269, XP055494909 | 
| OPPOSITION | - "Mineral Oil", World of Chemicals, (20180213), URL: www.worldofchemicals.com/chemicals/chemical-properties/mineral-oil.html | 
| OPPOSITION | - "Mineral Oil", World of Chemicals, (20180213), URL: www.worldofchemicals.com/chemicals/chemical-properties/mineral-oil.html, XP055494889 | 
| OPPOSITION | - "Safety Data Sheet EZ DEWAX SOLUTION", BioGenex, (20031030), pages 1 - 4 | 
| OPPOSITION | - "Safety Data Sheet EZ DEWAX SOLUTION", BioGenex, (20031030), pages 1 - 4, XP002602420 | 
| OPPOSITION | - "Solvent Dyes", ChemicalBook.com, (20160000), URL: www.chemicalbook.com/ProductCatalog_EN/161123.htm | 
| OPPOSITION | - "Solvent Dyes", ChemicalBook.com, (20160000), URL: www.chemicalbook.com/ProductCatalog_EN/161123.htm, XP055494903 | 
| OPPOSITION | - LIN et al., "High-quality genomic DNA extraction from formalin-fixed and paraffin-embedded samples deparaffinized using mineral oil", Analytical Biochemistry, (20091215), vol. 395, no. 2, pages 265 - 267, XP026677126 | 
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