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Exploring the Tail of Patented Invention Value Distributions

Scherer, Frederic M.; Harhoff, Dietmar; Vopel, Katrin - 1997

We explore the tail of patented invention value distributions by using value estimates obtained directly from patent holders. The paper focuses on those full-term German patents of the application year 1977 which were held by West German and U.S. residents. The most valuable patents in our data...

Persistent link: https://www.econbiz.de/10010297567

New evidence on determinants of IP litigation: A market-based approach

Czarnitzki, Dirk; van Criekingen, Kristof - 2018

We contribute to the economic literature on patent litigation by taking a new perspective. In the past, scholars mostly focused on specific litigation cases at the patent level and related technological characteristics to the event of litigation. However, observing IP disputes suggests that not...

Persistent link: https://www.econbiz.de/10011817198

The rise of process claims: Evidence from a century of U.S. patents

Ganglmair, Bernhard; Robinson, W. Keith; Seeligson, Michael - 2022

We document the occurrence of process claims in granted U.S. patents over the last century. Using novel data on the type of independent patent claims, we show an increase in the annual share of process claims of about 25 percentage points (from below 10% in 1920). This rise in process intensity...

Persistent link: https://www.econbiz.de/10013175974

Quantity or quality? Collaboration strategies in research and development and incentives to patent

Hottenrott, Hanna; Lopes-Bento, Cindy - 2012

more forward citations per patent indicating that joint R&D enhances patent quality. In light of literature on strategic … intellectual property, while exchange alliances drive portfolio patenting, resulting in fewer forward citations. …

Persistent link: https://www.econbiz.de/10010309806

Spillover Effects and R&D-Cooperations - The Influence of Market Structure

Wölfl, Anita - 2000

This paper examines empirically the role of market structure for the influence of spill-over effects on R&D-cooperations. The results of a microeconometric analysis, based on firm data on innovation, let in general presume that with intensified competition also the influence of spillovers on...

Persistent link: https://www.econbiz.de/10010316386

Determinants of Patent Litigation in Germany

Cremers, Katrin - 2004

This paper presents an empirical analysis of the determinants of patent litigation in Germany, based on information from suits filed during the period from 1993 to 1995 at two of the three most important district courts. A control group was formed by selecting a random sample from the population...

Persistent link: https://www.econbiz.de/10010297398

Did Concentration on Core Competencies Drive Merger and Acquisition Activities in the 1990s? Empirical Evidence for Germany

Hussinger, Katrin - 2005

In the context of increasing globalization of markets, merger and acquisition activities in the 1990s are said to be driven by reorganization processes with respect to concentration on firms? core competencies in order to increase or maintain market power in international markets. This paper...

Persistent link: https://www.econbiz.de/10010297448

The influence of strategic patenting on companies' patent portfolios

Blind, Knut; Cremers, Katrin; Mueller, Elisabeth - 2008

portfolios. We use the number of citations and oppositions to represent these characteristics. The investigation is based on … higher number of citations for their patents. Second, the motive of offensive - but not of defensive - blocking is related to … a higher incidence of oppositions, whereas companies using patents as bartering chips in collaborations receive fewer …

Persistent link: https://www.econbiz.de/10010299473

Intellectual property infringements due to R&D abroad? A comparative analysis between firms with international and domestic R&D activities

Schmiele, Anja - 2010

This paper aims at analysing the risk of intellectual property (IP) infringements by competitors from abroad and in particular whether this risk is higher for international innovating firms. We distinguish three different types of IP infringements from abroad: the usage of firms' technical...

Persistent link: https://www.econbiz.de/10010303803

Entrepreneurs from low-skilled immigrant groups in knowledge-intensive industries - company characteristics, survival and innovative performance

Mueller, Elisabeth - 2011

This paper analyzes how companies of immigrant entrepreneurs in knowledgeintensive industries differ from companies of native entrepreneurs with respect to start-up characteristics, firm survival and innovative performance. I focus on immigrants from the 'recruitment countries' of south and...

Persistent link: https://www.econbiz.de/10010304654

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