The presentation gives a brief overview of the role of Cheminformatics in different fields of IP, and how ChemAxon tools serve these fields. Introducing solutions for indexing chemical information in the patent documents, tools for making the extracted information chemical searchable, and finally, a unique tool for computer added chemical patent drafting. Besides the short introduction of the relevant ChemAxon applications (Document to Structure, ChemLocator, ChemCurator, Markush Editor, JChem) we also discuss the main challenges of the IP from Cheminformatics viewpoint.