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Can Post-Grant Reviews Improve Patent System Design? A Twin Study of US and European Patents

Graham, Stuart J.H.; Harhoff, Dietmar - 2006

This paper assesses the impact of adopting a post-grant review institution in the US patent system by comparing the 'opposition careers' of European Patent Office (EPO) equivalents of litigated US patents to those of a control group of EPO patents. We demonstrate several novel methods of...

Persistent link: https://www.econbiz.de/10010333818

Prospects for Improving U.S. Patent Quality via Post-grant Opposition

Hall, Bronwyn H. - 2003

The recent surge in U.S. patenting and expansion of patentable subject matter has increased patent office backlogs and raised concerns that in some cases patents of insufficient quality or with inadequate search of prior art are being issued. At the same time patent litigation and its costs are...

Persistent link: https://www.econbiz.de/10012468967

Separating patent wheat from chaff: Would the US benefit from adopting patent post-grant review?

Graham, Stuart J.H.; Harhoff, Dietmar - In: Research Policy 43 (2014) 9, pp. 1649-1659

This article assesses the impact in the US of adopting a patent post-grant review (PGR) procedure similar to one provided in the America Invents Act (AIA) of 2011. We employ novel methods for matching US patents to their European counterparts to find that opposition rates are about three times...

Persistent link: https://www.econbiz.de/10010930885

Prospects for Improving U.S. Patent Quality via Post-grant Opposition

Hall, Bronwyn H; Graham, Stuart J.H.; Harhoff, Dietmar - National Bureau of Economic Research (NBER) - 2003

Persistent link: https://www.econbiz.de/10005085013

Post-Issue Patent â€œQuality Control:â€ A Comparative Study of US Patent Re-examinations and European Patent Oppositions

Graham, Stuart J.H.; Hall, Bronwyn H.; Harhoff, Dietmar; … - Institute of Business and Economic Research (IBER), … - 2002

We report the results of the first comparative study of the determinants and effects of patent oppositions in Europe and of re-examinations on corresponding patents issued in the United States. The analysis is based on a dataset consisting of matched EPO and US patents. Our analysis focuses on...

Persistent link: https://www.econbiz.de/10010538432

PROSPECTS FOR IMPROVING U.S. PATENT QUALITY VIA POST-GRANT OPPOSITION

Hall, Bronwyn H.; Graham, Stuart J.H.; Harhoff, Dietmar; … - 2003

Persistent link: https://www.econbiz.de/10006968693

POST-ISSUE PATENT "QUALITY CONTROL": - A COMPARATIVE STUDY OF US PATENT RE-EXAMINATIONS AND EUROPEAN PATENT OPPOSITIONS

Graham, Stuart J.H.; Hall, Bronwyn H.; Harhoff, Dietmar; … - 2002

Persistent link: https://www.econbiz.de/10006975065

Post-Issue Patent "Quality Control": A Comparative Study of US Patent Re-examinations and European Patent Oppositions

Graham, Stuart J.H.; Hall, Bronwyn H; Harhoff, Dietmar; … - National Bureau of Economic Research (NBER) - 2002

Persistent link: https://www.econbiz.de/10005830344

Prospects for Improving U.S. Patent Quality via Postgrant Opposition

Hall, Bronwyn H; Graham, Stuart J.H.; Harhoff, Dietmar; … - In: Innovation Policy and the Economy, Volume 4

Persistent link: https://www.econbiz.de/10005073395

Can Post-Grant Reviews Improve Patent System Design? A Twin Study of US and European Patents

Graham, Stuart J.H.; Harhoff, Dietmar - C.E.P.R. Discussion Papers - 2006

This paper assesses the impact of adopting a post-grant review institution in the US patent system by comparing the “opposition careers” of European Patent Office (EPO) equivalents of litigated US patents to those of a control group of EPO patents. We demonstrate several novel methods of...

Persistent link: https://www.econbiz.de/10005666881