Jennifer O’Farrell


Jennifer, Partner, is a Chartered Patent Attorney and European Patent Attorney in the Biotechnology and Life Sciences Group.

She has experience prosecuting patent applications before the European Patent Office in all aspects of biotechnology, with particular focus on PEGylation technologies, antibodies, immunology and Alzheimer’s Disease.

Jennifer also has experience in both attacking and defending patents during Opposition Proceedings before the European Patent Office, managing clients’ international patent portfolios, advising on filing strategies and prosecuting patent applications before the UKIPO. She has been extensively involved in the filing of SPC applications throughout Europe. She is also a member of the BIA Cell & Gene Therapy Advisory Committee.

Jennifer has an MBiochem from the University of Oxford. In her final year she studied bacterial replication, focusing on chromosome segregation. She also undertook a summer research placement at the University of Southampton where she studied antigen presentation by MHCII.

Recent work

  • Successfully defended a patent for a Swedish biotechnology company, which covered an antibody developed for the use in treatment of Alzheimer’s disease and which is in clinical trials, against an opposition at the European Patent Office.
  • Assisted a UK cancer diagnostics company by filing patent applications to protect new inventions and developments.
  • Works with a US pharmaceutical company to manage its European patent portfolio and handles European Patent Office oppositions and defends against attacks at the EPO.



The National Lifesciences Expo 2018, Milton Keynes

BIA Committee Summit 2018, London, February 2018

IAM 2nd annual Pharma and Biotech IP Summit, London, February 2018

Life Sciences patent Network Conference 2017

Westminster Health Forum Keynote Seminar: The future of personalised and genomic medicine, London, December 2017

UCL IBIL Debate ‘Equivalents: K = Na. Is the genie out of the bottle?’, London, November 2017

The future of UK science and innovation – Brexit, the Industrial Strategy and the HE and Research Act- Westminster Higher Education Forum, Morning, Tuesday, 30th January 201

BIO-Europe 2017, Berlin, Germany, November 2017

BIA UK Bioscience Forum, Speaker, London, October 2017

The Knowledge Group, Webinar speaker, Patent Protection for Pharma and Biotechnology in 2017, July 2017

Gowling WLG Life Sciences Seminar, London, July 2017

BioTrinity 2017, London, May 2017

Westminster Legal Policy Forum, Attending, London, February 2017

Women in the City Annual Lunch, London, November 2016

Life Sciences Patents Network Europe, Attending, London, December 2016

BIA UK Bioscience Forum, London, October 2016

Royal Society of Chemistry’s IP Case Law Seminar, Speaker, London, October 2016

December 2014 – Genesis Conference

July 2014 – One Nucleus, ON Helix

June 2014 – BIO International Convention, San Diego

May 2014 – BioTrinity

May 2014 – BIA Lecture, ‘Inspiring innovation in healthcare and the next generation’

March 2014 – MIP conference

March 2014 – Westminster Conference

February 2014 – Speaker, Boult Wade Tennant Chemistry and Biotech client seminar

December 2013 – Genesis, London

October 2013 – CIPA Congress

October 2013 – London Patent Summit

July 2013 – ON Helix

June 2013 – PraxisUnico conference

May 2013 – BioTrinity

November 2012 – CIPA Biotech conference

Biotechnology and Life Sciences

Biotechnology and Life Sciences
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Jennifer O'Farrell

Contact me

Phone our  office Email me

Phone this number +44 20 7430 7500

Email this address jo'

My location

My location

Verulam Gardens
70 Gray's Inn Road

Sectors and practice areas


  • Biopharmaceuticals
  • Diagnostics
  • Medical devices
  • Pegylation technology and therapeutics
  • Pharmaceuticals

Practice areas

  • Alzheimer’s treatment
  • Antibodies
  • Immunodiagnostics
  • Immunological methods
  • Novel proteins and nucleic acids
  • Nucleic acid sequencing methods
  • Protein conjugation
  • Protein pegylation


  • CIPA


  • Chartered UK Patent Attorney
  • European Patent Attorney
  • MBiochem, the University of Oxford
'Jennifer O’Farrell is a “first-class attorney, on top of the law and possessed of fantastic personal skills”.' IAM Patent 1000, 2016
Recommended Individual, Prosecution - IAM Patent 1000, 2017

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