Download Economic Analyses of the European Patent System by Stefan M. Wagner (auth.) PDF

By Stefan M. Wagner (auth.)

The ecu Patent approach is dealing with significant demanding situations due to an extension of patentable subject material resulting in progressively more patent functions. the eu Patent place of work has answered with admirable flexibility, yet carrying on with technological swap and bigger significance ascribed to patents are resulting in lengthened exam sessions, emerging competition figures and altering behaviour of patent applicants.

Stefan M. Wagner analyses difficulties linked to institutional adjustments (duration of patent exam and competition mechanisms), the growth of the patentable subject material and organizational demanding situations for business patentees. The learn is predicated at the empirical research of huge scale datasets on ecu patents and employs complex multivariate tools akin to semi-parametric and panel-data regression methods.

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Concerning the results for the binary covariates Wi,... 3. 3 Model Validation To give a more formal rationale for the benefits in using our semiparametric approach, we first compare the three approaches M i , . . , M3 in terms of the deviance information criterion (DIC) introduced by Spiegelhalter et al. (2002). The DIC is a Bayesian analogue to the Akaike information criterion {AIC) penalizing the fit of a model measured by the deviance with the complexity of a model represented by the effective number of model parameters.

Org and covers 1,266,506 patent files with apphcation dates ranging from June, P*, 1978 to July, 25*'*, 2002. In addition, we have obtained information on the number of claims firom the EPASYS directory excerpts which were kindly made available by the EPO. Moreover, in order to have an estimate of the EPO's processing capacity, the average number of employees by year has been obtained from EPO's Annual Report 2003. The inclusion of forward citations (see below) in the multivariate analysis requires a restriction of the dataset to patents with apphcation dates prior to February, 14*'*,1998.

On the other hand, each additional claim in a patent makes the description of the claimed invention more specific and might narrow the scope of the protected area and hence the value of the property right (see Lanjouw k Schankerman (1999) for a discussion of this trade-off). We employ the number of claims with a more neutral interpretation in mind - the number of claims simply indicates the complexity of the cases to be examined by the patent office; hence, a larger number of claims should lead to an increase in the time needed for examination, since each claim must be checked and validated by the examiner.

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