Patent No. EP2630263 (titled "Varietal Counting Of Nucleic Acids For Obtaining Genomic Copy Number Information") was filed by Cold Spring Harbor Laboratory on Oct 21, 2011. The application was issued on Nov 10, 2021.
A method for obtaining genomic copy number information from single cells without amplification distortion, comprising tagging genomic DNA with unique identifiers, sequencing the tagged DNA, and counting the number of unique identifiers at each genomic location to determine copy number. The method enables accurate copy number analysis from single cells by avoiding the amplification biases inherent in traditional whole-genome amplification methods.

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| Company | Opposition Date | Representative |
|---|---|---|
| JAMES POOLE | Jan 25, 2019 | CARPMAELS & RANSFORD |
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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