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Expired Canadian patentCanada

Multi-source longitudinal patient-level data encryption process

CA 2564344 C · Owner: Wolfe, Clinton J. · Inventors: Wolfe, Clinton J.; Kohan, Mark E.

CIPO record

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Abstract From the Canadian patent

A process for assembling a longitudinally-linked database from individual patient healthcare transaction data records. The process comprises the steps of, at a data supplier location, acquiring data records having patientidentifying, attributes and non-identifying attributes; encrypting the patient-identifying attributes in the data records using a first encryption key specific to a central facility (LDF); encrypting the patient-identifying attributes in the data records encrypted with a second encryption key specific to the data supplier location; at the LDF, receiving the data records that have been encrypted; partially decrypting the received data records so that the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 5, 2005 and granted April 12, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 5, 2005
GrantedApril 12, 2016
Term endedMay 5, 2025
Patent numberCA 2564344 C
Classification (IPC)G16H10/60

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMay 5, 2005Patent grantedApril 12, 2016Term endedMay 5, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.