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Original Articles

The effective patent life of American originated drugs in New Zealand

Pages 61-68 | Published online: 10 Nov 2009

References

  • Eisman , M. and Wardell , W. M. 1981 . “The decline in effective patent life of new drugs” . Research Management , 21 (1)
  • Industrial Property Advisory Committee (IPAC) Report . 1983 . “The Patent Monopoly Term and Extensions Thereof” . unpublished
  • Parker , J. E. S. 1984 . The International Diffusion of Pharmaceuticals , London : Macmillan. .
  • Penrose , E. 1951 . The Economics of the International Patent System , Baltimore : John Hopkins University Press. .
  • Ravenscroft , M. K. and Walker , S. R. 1983 . “Innovation as assessed by new chemical entities marketed in the UK between 1960 and 1982” . British Journal of Pharmacology , 80 : 584
  • Walker , S. A. and Prentis , R. A. 1985 . “Drug research and pharmaceutical patents” . The Pharmaceutical Journal , : 234
  • Wardell , W. M. and Sheck , L. E. 1984 . “Is pharmaceutical innovation declining?” . In Pharmaceutical Economics , Edited by: Lindgren , B. Stockholm : Swedish institute of Health Economics. .
  • University of Otago.

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