Sharīʼah Analysis of Theoretical Justification for Pharmaceutical Patent Protection; A Comparative Study of Western Thoughts with Islamic Law 2022 Vol.23, No.1 پاکستان جرنل آف اسلامک ریسرچ September 5, 2022November 22, 2022Rizwan Mughal Muhammad Danyal Khan Rais Nouman Ahmed Pages: 49-58