Mapping Markush

47 Pages Posted: 13 Jul 2022

See all articles by Stefan Wagner

Stefan Wagner

ESMT European School of Management and Technology

Christian Sternitzke

Independent

Sascha G. Walter

Julius-Maximilians-University Würzburg

Date Written: July 11, 2022

Abstract

Markush structures are molecular skeletons containing not only specific atoms but also placeholders to represent broad sets of chemical (sub)structures. As genus claims, they allow a vast number of compounds to be claimed in a patent application without having to specify every single chemical entity. While Markush structures raise important questions regarding the functioning of the patent system, innovation researchers have been surprisingly silent on the topic. This paper summarizes the ongoing policy debate about Markush structures and provides first empirical insights into how Markush structures are used in patent documents in the pharmaceutical industry and how they affect important outcomes in the patent prosecution process. While not causing frictions in the patent prosecution process, patent documents containing Markush structures have an increased likelihood to restrict the patentability of follow-on inventions and to facilitate the construction of broad patent fences.

Keywords: pharmaceutical industry, innovation, patents, Markush structures

Suggested Citation

Wagner, Stefan and Sternitzke, Christian and Walter, Sascha G., Mapping Markush (July 11, 2022). ESMT Berlin Working Paper No. 22-05, 2022, Available at SSRN: https://ssrn.com/abstract=4159861 or http://dx.doi.org/10.2139/ssrn.4159861

Stefan Wagner (Contact Author)

ESMT European School of Management and Technology ( email )

Schlossplatz 1
10117 Berlin
Germany

Christian Sternitzke

Independent

Sascha G. Walter

Julius-Maximilians-University Würzburg ( email )

Sanderring 2
Würzburg, 97070
Germany

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