Ellen Cha
Chemical, Resources

I am a Patent Attorney working in our Chemistry team.  My technical background is chemical engineering which focused on minerals & metallurgical processes, process design/equipment, oil & gas and bioprocessing

I enjoy working with new technologies and exploring the depth of its science.

Since joining Wrays I have worked on a wide variety of subject matters, including wastewater treatment, mineral processes, process equipment, pharmaceuticals and biotechnology.  With the benefit of the extensive experience of other practitioners at Wrays, I assist in patent and trade mark prosecution in various jurisdictions for both local and overseas clients.  I have also assisted in patent oppositions, representing global companies, on complex technology in the field of industrial chemical processing/equipment.

During my studies at the University of Melbourne, I was privileged to receive the Engineering Exchange Scholarship which took me to Tsinghua University, Beijing, to research Smart, non-harmful process design for copper-based waste catalysts.  My final year thesis focused on carbon capture and DME production.

I am also proficient in Korean, and regularly assist and advise clients on matters which require working knowledge and understanding of Korean, including in the review and preparation of technical documentation.

I am currently the Chair of the WA Mining Club Young Professionals and have been a committee member since 2019


  • AU Patent & Trade Marks Attorney
  • NZ Patent Attorney

Industry Areas

  • Pharmaceuticals
  • Chemical Engineering, Metallurgy & Process Technology
  • Chemistry & Material Sciences
  • Resources, Mining, Oil and Gas
  • Medical Technologies

Educational Background

  • Master of Chemical Engineering
  • Bachelor of Science (Chemical Engineering)
  • Master of Intellectual Property