Citations per year, relative to Hanns Ullrich Hanns Ullrich (= 1×)
peers
Carolyn Deere
Countries citing papers authored by Hanns Ullrich
Since
Specialization
Citations
This map shows the geographic impact of Hanns Ullrich's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hanns Ullrich with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hanns Ullrich more than expected).
This network shows the impact of papers produced by Hanns Ullrich. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hanns Ullrich. The network helps show where Hanns Ullrich may publish in the future.
Co-authorship network of co-authors of Hanns Ullrich
This figure shows the co-authorship network connecting the top 25 collaborators of Hanns Ullrich.
A scholar is included among the top collaborators of Hanns Ullrich based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Hanns Ullrich. Hanns Ullrich is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
20 of 20 papers shown
1.
Ullrich, Hanns. (2025). Food and Industrial Property in Context. GRURRR. Gewerblicher Rechtsschutz und Urheberrecht, Rechtsprechungs-Report/GRUR-DVD/GRUR-CD/IIC/Gewerblicher Rechtsschutz und Urheberrecht/Gewerblicher Rechtsschutz und Urheberrecht. Internationaler Teil. 56(1). 1–5.
Ullrich, Hanns. (2017). FRAND Access to Open Standards and the Patent Exclusivity: Restating the Principles. SSRN Electronic Journal. 0–0.1 indexed citations
4.
Ullrich, Hanns. (2013). The Property Aspects of the European Patent with Unitary Effect: A National Perspective for a European Prospect?. SSRN Electronic Journal. 481–498.2 indexed citations
5.
Ullrich, Hanns. (2012). Harmonizing Patent Law: The Untameable Union Patent. SSRN Electronic Journal. 243–294.4 indexed citations
6.
Ullrich, Hanns. (2012). Select from Within the System: The European Patent with Unitary Effect. SSRN Electronic Journal. 207–246.5 indexed citations
7.
Ullrich, Hanns. (2012). Intellectual Property: Exclusive Rights for a Purpose – The Case of Technology Protection by Patents and Copyright. SSRN Electronic Journal.2 indexed citations
8.
Ullrich, Hanns. (2010). Patents and Standards - A Comment on the German Federal Supreme Court Decision Orange Book Standard. Max Planck Digital Library. 41(3). 337–351.2 indexed citations
9.
Hilty, Reto M., et al.. (2009). Comments of the Max Planck Institute for Intellectual Property, Competition and Tax Law on the 2009 Commission Proposal for the Establishment of a Unified European Patent Judiciary. Max Planck Institute for Plasma Physics. 40(7). 817–838.2 indexed citations
10.
Hilty, Reto M., et al.. (2009). Comments of the Max Planck Institute for Intellectual Property, Competition and Tax Law on the 2009 Commission Proposal for the Establishment of a Unified European Patent Judiciary. SSRN Electronic Journal.2 indexed citations
11.
Ullrich, Hanns, et al.. (2007). Intellectual Property, Public Policy and International Trade. Lang eBooks. 6.2 indexed citations
12.
Ullrich, Hanns. (2007). Patente, Wettbewerb und technische Normen: Rechts- und ordnungspolitische Fragestellungen. GRURRR. Gewerblicher Rechtsschutz und Urheberrecht, Rechtsprechungs-Report/GRUR-DVD/GRUR-CD/IIC/Gewerblicher Rechtsschutz und Urheberrecht/Gewerblicher Rechtsschutz und Urheberrecht. Internationaler Teil. 109(10). 817–830.
13.
Ullrich, Hanns. (2006). The evolution of European competition law : whose regulation, which competition?. Edward Elgar eBooks.1 indexed citations
Ullrich, Hanns, Joseph Straus, Anthony Arundel, et al.. (1999). Report on "Strategic Dimensions of Intellectual Property Rights in the context of Science and Technology Policy" as member of the ETAN expert group (European Technology Assessment Network). MPG.PuRe (Max Planck Society).5 indexed citations
16.
Ullrich, Hanns, et al.. (1998). Comparative competition law: approaching an international system of antitrust law : proceedings of the workshop, Bruges, College of Europe, July 3 - 5, 1997. Nomos Verlagsgesellschaft eBooks.1 indexed citations
17.
Ullrich, Hanns. (1998). International Harmonisation of Competition Law - Making Diversity a Workable Concept. MPG.PuRe (Max Planck Society). 43–47.3 indexed citations
18.
Ullrich, Hanns, et al.. (1995). Der internationale Softwarevertrag.
19.
Ullrich, Hanns, et al.. (1993). Technologieschutz in Japan : Strategien für Unternehmenskooperationen. 46(7). 16–29.
20.
Ullrich, Hanns. (1984). Die wettbewerbspolitische Behandlung gewerblicher Schutzrechte in der EWG. MPG.PuRe (Max Planck Society).
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.