Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB909019037Aexternal-prioritypatent/GB9019037D0/en
Priority claimed from CN 91108637external-prioritypatent/CN1059546A/zh
Application filed by Univ Essex, 3I PlcfiledCriticalUniv Essex
Application grantedgrantedCritical
Publication of TW260655BpublicationCriticalpatent/TW260655B/zh