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European application, no grantEurope

Encryption secured against Differential Power Analysis (DPA)

EP 1772985 A1 · Applicant: FUJITSU LIMITED

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Overview

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

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Why it's free to use

  • Filed January 25, 2002 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 25, 2022.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJanuary 25, 2002
PublishedApril 11, 2007
GrantedNever granted
Term endedJanuary 25, 2022
Application numberEP 07000759
Classification (CPC)H04L9/003

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJan 25, 2002PublishedApril 11, 2007Term endedJan 25, 2022

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.