This paper presents a critical survey of the literature on the determinants of patent value. The contributions to the literature are essentially two-fold. First, significant inconsistencies across existing studies are underlined. Second, a sensitivity analysis shows strong dependencies of...

This paper tackles one of the most persistent criticism of patent statistics. Because not all inventions are patented, the patent-to-R&D ratio reflects both a productivity effect (the number of inventions created per unit of research input) and a propensity effect (the proportion of inventions...

Financial constraints are particularly severe for R&D projects of SMEs, which cannot generally rely on equity markets and, in the EU, on a sufficiently developed VC industry. If innovative SMEs have to depend on banks to finance their R&D projects, it is particularly important to develop models...

The valuation of patents is an important, albeit challenging task. Extant research to identify patent value indicators has so far relied on expert estimates of patent value, exploited patent renewal data, or depended on more indirect measures of patent value. Recently, specialized market places...

Dans ce texte nous décrivons et comparons les systèmes d’innovation de quatre grands pays asiatiques (Chine, Corée, Japon, Taiwan) à partir de quelques caractéristiques des inventeurs les plus productifs de ces pays. On mobilise le modèle évolutionniste de production de connaissance par...

This paper compares corporate and academic patents and tests whether they have similar value and similar determinants of value. The empirical results based on an in-depth analysis of 400 biotech patents applied by Belgian universities and firms lead to the following observations :(i) the value...

It has long been implicitly assumed that the roaring backlogs experienced by most patent offices around the world – and harshly criticized by many patentees – are a mere mechanical consequence of surging numbers of patent filings. However, different voices suggest that the patent system may...

The length of patent rights is an issue of considerable importance in the design of patent systems, and its optimality has been intensively discussed in the literature. This dimension – taking the form of the number of years during which a given patent has been maintained – has been...

Germany is one of few countries in which the monetary compensation for inventors is not only determined by negotiations between employer and employee-inventor, but also by relatively precise legal provisions. In this paper, we describe the characteristics of the German Employees’ Inventions...

One of the objectives of patent systems is to disclose information which other agents can build on in further inventions and in their decision-making. While some observers take it as given that real-world patent systems serve this objective, we argue in this article that patent systems are...