Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
The Choice between Formal and Informal Intellectual Property: A Review
2014342 citationsBronwyn H. Hall, Christian Helmers et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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Countries citing papers authored by Christian Helmers
Since
Specialization
Citations
This map shows the geographic impact of Christian Helmers'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 Christian Helmers with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christian Helmers more than expected).
Fields of papers citing papers by Christian Helmers
This network shows the impact of papers produced by Christian Helmers. 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 Christian Helmers. The network helps show where Christian Helmers may publish in the future.
Co-authorship network of co-authors of Christian Helmers
This figure shows the co-authorship network connecting the top 25 collaborators of Christian Helmers.
A scholar is included among the top collaborators of Christian Helmers 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 Christian Helmers. Christian Helmers is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Contreras, Jorge L., Bronwyn H. Hall, & Christian Helmers. (2019). Pledging Patents for the Public Good: Rise and Fall of the Eco-Patent Commons. eYLS (Yale Law School). 57(1). 61–109.8 indexed citations
Cremers, Katrin, Fabian Gaessler, Dietmar Harhoff, et al.. (2016). Patent litigation in Europe. European Journal of Law and Economics. 44(1). 1–44.33 indexed citations
Hall, Bronwyn H., Christian Helmers, & Mark Rogers. (2014). The choice between formal and informal intellectual property: A review. RePEc: Research Papers in Economics.1 indexed citations
13.
Helmers, Christian, Brian J. Love, & Luke McDonagh. (2013). Is There a Patent Troll Problem in the UK. SSRN Electronic Journal. 24(2). 509.9 indexed citations
14.
McDonagh, Luke & Christian Helmers. (2013). Patent litigation in England and Wales and the issue-based approach to costs. London School of Economics and Political Science Research Online (London School of Economics and Political Science).3 indexed citations
15.
Graevenitz, Georg von, et al.. (2012). Trade Mark Cluttering: An Exploratory Report Commissioned by UKIPO. UEA Digital Repository (University of East Anglia).2 indexed citations
16.
Hall, Bronwyn H., Christian Helmers, Mark Rogers, & Vania Sena. (2012). The Choice between Formal and Informal Intellectual Property: A Literature Review. RePEc: Research Papers in Economics.1 indexed citations
17.
Hall, Bronwyn H. & Christian Helmers. (2011). Innovation and Diffusion of Clean/Green Technology: Can Patent Commons Help?. UNU Collections (United Nations University).2 indexed citations
18.
Eberhardt, Markus & Christian Helmers. (2010). Untested Assumptions and Data Slicing: A Critical Review of Firm-Level Production Function Estimators. Oxford University Research Archive (ORA) (University of Oxford).44 indexed citations
19.
Helmers, Christian, et al.. (2009). Bussines R&D expenditure and capital in Europe.. 14(1). 36–61.3 indexed citations
20.
Rogers, Mark, Christine Greenhalgh, & Christian Helmers. (2007). The association between the use of IP by UK SMEs in 2001 and subsequent performance in 2002 to 2004. Aston Publications Explorer (Aston University).6 indexed citations
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.