Slide 1

An Analysis of Academic Patents owned by Swedish based firms Evangelos Bourelos, PhD University of Gothenburg Daniel Ljungberg, Lecturer University of Gothenburg Maureen McKelvey, Professor University of Gothenburg Slide 2 Academic Patents Patent Value Slide 3 Contribution Academic vs Non-Academic Patents, owned by a firm University Corporate Patents Academic Patents Non-Academic Patents Slide 4 Focus on firm-owned patents Academic patents= At least 1 academic inventor Value= Citations Corporate Patents Slide 5 Academic Patenting in Sweden Professors privilege 80% owned by firms Patent Value Lissoni et al. 2008 Slide 6 Research nature and patent value Basic vs Applied Research Applied Research Basic Research Academic Inventors Firms Focus on short-term returns Academic patents higher long- term value Slide 7 University-Industry Collaboration Academic Inventors Inclination to science based patents Long-term value Firms Involve academics in patents leading to immediate returns Short-term Academic Patents VS Non-academic Patents Slide 8 Hypothesis 1 The effect of academic inventors on the value of firm- owned patents is differentiated over time, with an expected disadvantage in the short-term and an expected advantage in the long-term Slide 9 Type of collaboration Technology University-Industry Collaboration Patent Slide 10 Core technology patents Core: high resource commitment by firm, competitive advantage to that technology Non-core patents Higher patent value Lower patent value Slide 11 Hypothesis 2 Patents belonging to firms 'core technologies have higher value, as compared to patents in non-core technologies Slide 12 Effect on academic patents value Academic inventor Patent value Technological profile Slide 13 Effect on academic patents value Academic inventor Patent value Technological profile Slide 14 Hypothesis 3 Controlling for whether patents belong to the core technologies of firms decreases the effect of academic inventors on patent value Slide 15 Data Firm owned academic and non academic patents PATSTAT-KITeS 1978-2009 Swedish inventor Swedish patents Firm-owned Firm data (Orbis, etc ) KEINS/APE-INV Slide 16 Dependent variables Patent value: Total number of forward citations Short-term patent value: The number of forward citations within the first 3 years Long-term patent value: The number of forward citations received after the first three years Slide 17 Independent variables Binary 1/0 1 if at least one academic inventor Academic Inventors Binary 1/0 1 if a patent is part of the firms core technologies (Grandstrand et al. 1997) Slide 18 Control variables Backward patent citations Non-patent references Number of inventors IPC classes Firm dummies Priority year dummies Dummies for technological class Slide 19 Descriptive statistics Slide 20 Non-academic patentsAcademic patentsDifference % z-test P > |z| Short-term0.930.82-11.83*0.0860 Long-term1.371.488.030.2453 Total2.30 00.9682 Table 3. Forward patent citations (FPCs) by inventorship: Mean citations per patent. Slide 21 Econometric results Short-term citationsLong-term citationsTotal (1)(2)(3)(4)(5)(6) FPC3 FPC +Core Academic inventor -0.193***-0.137*-0.139**-0.0791-0.140**-0.0888 (0.0722)(0.0720)(0.0581)(0.0584)(0.0557) Core technology 0.420*** 0.431*** 0.405*** (0.0322) (0.0320) (0.0273) BPC0.0334***0.0368***0.0188***0.0222***0.0216***0.0252*** (0.00756)(0.00726)(0.00629)(0.00626)(0.00535)(0.00525) NPR0.258***0.250***0.121***0.112***0.190***0.182*** (0.0357)(0.0353)(0.0361) (0.0302)(0.0301) #Inventors0.0763***0.0711***0.0674***0.0610***0.0725***0.0671*** (0.0106)(0.0105)(0.0107) (0.00904)(0.00901) #IPC classes0.147***0.161***0.135***0.152***0.136***0.151*** (0.0139)(0.0140)(0.0128)(0.0129)(0.0113) Firm dummiesincluded*** Priority yearincluded*** OST7included***included**included***included**included*** Constant-0.940***-1.217***0.835***0.578***0.943***0.692*** (0.167)(0.172)(0.128)(0.130)(0.118) Observations16,053 Negative Binomial regressions Slide 22 Econometric results Short- term value Academic Inventor Short- term value Academic Inventor Core -0.193*** -0.137*0.420*** Slide 23 Econometric results Long- term value Academic Inventor Core Long- term value -0.139** -0.0791 0.431*** Slide 24 Econometric results Patent value Academic Inventor Core Patent value -0.140** -0.08880.405*** Slide 25 Conclusions Academic patents have higher long-term value Academic patents, owned by firm (and not comparing ownership), have lower short-term value but similar long-term Firms might seek collaboration for short-term returns Slide 26 Conclusions Patent value is heavily dependent on technological profile of the firm Core patents have higher value Technological profile an important control when assessing academic patenting Academic involvement per se is not adequate to evaluate the patent value Technological profile and furthermore the collaboration type has to be assessed Slide 27 THANKS Questions?