The study discusses the ownership arrangements of employee invention in patent law system in several countries that become the members of G-20 and comparable with employee invention arrangement in patent law in Indonesia.The research approach used by normative juridical and the data used is secondary data and used qualitative analysis. The concept of setting a clear ownership of employee inventions by relying on the doctrine hired to invent or shop rights in the adoption of the patent law system in the advanced industrial countries that become G-20 members proved able to create a climate of innovative inventions by employees of the company and also donate the progress of science and technology.In Indonesia, the concept of employee inventions that have not been expressly provided in Article 12 of Patent Law of 2016 and has not yet adopted the doctrine hired to invent or shop rights gives the benefit of the employer/company to have exclusive rights to the patent and exploit freely on inventions resulting workers but on the other hand less can create a conducive climate for workers to generate innovative inventions.

K. Roisah Et Al (2018). Status and Contemporary Development of Employee Inventions Ownership in G-20 Countries, European Research Studies Journal Volume XXI Issue 2, 214-224