Patents by Inventor Per Johan Ulfendahl

Per Johan Ulfendahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Arrayed primer extension technique for nucleic acid analysis
    Patent number: 6280954
    Abstract: A nucleic acid analysis method is provided which includes the steps of using a primer to amplify the nucleic acid; providing an array of probes, each probe comprising a sequence identical to the primer and an adjacent sequence; applying fragments of the amplifier nucleic acid under hybridisation conditions to the array, effecting enzymatic chain extension of any probe where the adjacent sequence matches that of a hybridised fragment of the amplified nucleic acid; and observing the location of probes of the array while chain extension has taken place.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: August 28, 2001
    Assignee: Amersham Pharmacia Biotech AB
    Inventor: Per Johan Ulfendahl