Our People


Margaret Doucas

Margaret Doucas, is a Principal of Henry Hughes and a Partner in Henry Hughes & Co. With a background in Science and Law, Margaret has more than 25 years experience providing strategic Intellectual Property protection and enforcement advice to global clients. Margaret’s Patent Law practice focuses on Life Sciences (Pharmaceuticals and Biotechnology)... More


MarkMark Eftimov

Mark Eftimov is a registered Patent Attorney in New Zealand and in Australia. Mark has over 35 years of experience in the area of Intellectual Property law and he now practises in the areas of industrial designs, patents and trade marks for Henry Hughes’ international and national clients... More


Frank CallusFrank Callus

Frank Callus qualified as a UK and European Patent Attorney before joining Henry Hughes in 1986. He became a Principal of Henry Hughes in 1991. He has a bio-physics background and, with the experience gained in English and European Patent Law, prior to joining Henry Hughes, has over 20 years experience in Intellectual Property Law... More


Barbara SullivanBarbara Sullivan

Barbara Sullivan is a Principal of Henry Hughes and a Partner in Henry Hughes & Co. Barbara has more than 25 years extensive experience advising global and national clients. She provides strategic Intellectual Property advice, mainly in the areas of trade marks and copyright, Fair Trading Act, passing off and licensing... More


Elena Szentivanyi

Elena’s practice covers the development, establishment, management, exploitation and enforcement of intellectual property rights, specialising in trade marks, and domain names. Elena joined Henry Hughes in 1992 and became a Principal in 2002... More



Professional Staff

Adrian EvansAdrian Evans

Adrian holds degrees in both law and science from Victoria University of Wellington, with his science degree majoring in genetics, molecular biology and physiology ... More

Russell LawRussell Law

Russell Law is a Registered Patent Attorney (New Zealand) and a Fellow of the New Zealand Institute of Patent Attorneys (NZIPA). Russell joined Henry Hughes in 2009 after 16 years at another leading New Zealand based Intellectual Property firm. Russell works with Henry Hughes principals and other professionals providing advice to New Zealand and international clients across a broad range of industries... More

David MooreDavid Moore

David Moore has been an Intellectual Property lawyer for over 15 years. He has practised in the Middle East, Australia and New Zealand, focusing on non-contentious intellectual property protection and commercialisation... More

David NowakDavid Nowak

David graduated from the University of Auckland in 2004 with a Bachelor of Science, majoring in Biological Sciences, and in 2007 with a Bachelor of Laws. Prior to joining Henry Hughes in 2009, David worked as a Patent Examiner in the chemical and biotechnology fields at the Intellectual Property Office of New Zealand... More

Penny WalshPenny Walsh

Penny studied Chemistry at the University of Otago, gaining her PhD 2007. She then worked as a Patent Examiner and Senior Patent Examiner in the chemical, biotechnology and mechanical fields at the Intellectual Property Office of New Zealand... More


Legal Executives
  • Tracey Monckton
  • Helen Lyon
  • Kay Parsons



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