This paper investigates the possibility of developing a correspondence between the industrial sector (based on ICB classification) which is attributed to a corporation and the technological composition of this corporation's patent portfolio (based on WIPO technological fields) using a mathematical model based on gravity center.Exploiting data characterising 1288 large corporations from the Corporate Invention Board database, we carry out a two steps analysis. In the first place we compute average patent profiles for different industrial sectors. Then, we test the discriminating power of these average patent profiles by checking to what extent the analysis of a given corporate patent portfolio makes it possible to correctly predict the industrial sector to which this corporation actually belongs.The results show that this modelling, although providing quite precise predictive information for some industrial sectors (e.g. Healthcare, Automobiles or Chemical), does not fit for some industrial sectors which produce mainly very generic (i.e. not specific) technologies (e.g. Consumer Services or Support Services).
Analysing technological specificities of industrial sectors using corporate patent profiles with a gravity center modelling
Toma, P
;Frittelli, M;
2019-01-01
Abstract
This paper investigates the possibility of developing a correspondence between the industrial sector (based on ICB classification) which is attributed to a corporation and the technological composition of this corporation's patent portfolio (based on WIPO technological fields) using a mathematical model based on gravity center.Exploiting data characterising 1288 large corporations from the Corporate Invention Board database, we carry out a two steps analysis. In the first place we compute average patent profiles for different industrial sectors. Then, we test the discriminating power of these average patent profiles by checking to what extent the analysis of a given corporate patent portfolio makes it possible to correctly predict the industrial sector to which this corporation actually belongs.The results show that this modelling, although providing quite precise predictive information for some industrial sectors (e.g. Healthcare, Automobiles or Chemical), does not fit for some industrial sectors which produce mainly very generic (i.e. not specific) technologies (e.g. Consumer Services or Support Services).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
