Mewburn Ellis LLP

Chemistry

Partner, Patent Attorney, Chemistry

Callum is experienced in the drafting and prosecution of patent applications in the chemistry and materials fields before the European Patent Office and worldwide. He represents clients in oppositions and appeals at the EPO and conducts extensive freedom to operate analyses.

Areas of Expertise

Polymers and polymer manufacture, particularly polyethylene Energy Storage particularly battery materials, predominantly lithium ion battery materials Fuel cells Catalysts Inorganic materials, in particular glasses and alloys Small-molecule pharmaceuticals including antibiotics, antibody-drug conjugates and cancer therapeutics

Callum works with a number of large multinational chemical companies including polymer manufacturers, consumer products companies and speciality chemicals companies, as well as smaller local clients.

Callum has a Master’s degree in chemistry from Oxford University, which included a year of research focusing on spectroscopic and computational studies of small gas-phase transition metal clusters. He joined Mewburn Ellis LLP in 2012, qualifying as a Chartered Patent Attorney and European Patent Attorney in 2016. He completed a three-month secondment to a US law firm, gaining insight into US patent practice, and previously spent two days each week on secondment to a multinational chemical company. Callum became a Partner in 2021.