Ellen Cha
Energy, Resources

With my technical background in Chemical Engineering, I provide an in-depth analysis on a wide variety of subject matter to ensure our clients receive the most sophisticated and holistic advice in patent and trade mark prosecution.

I am a Patent Attorney working in our Chemistry team.  My technical background is Chemical Engineering, focusing on process design/equipment, minerals & metallurgical processes, oil & gas and bioprocessing.   With a background in engineering, I enjoy working with new technologies, and the depth of its science and research.

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.

Since joining Wrays I have worked on a wide variety of subject matter, including wastewater treatment, mining 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 for both local and overseas clients.

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 undertaking a Master of Intellectual Property, with a view to registering as a patent and trade mark attorney in the near future.


  • 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 in Chemical Engineering
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