Peter Yennadhiou

Of Counsel, UK and European Patent Attorney

Peter Yennadhiou

Peter’s career in IP started as an inventor when his research in optical communications led to several patents. Most recently, he led the global IP and licensing function at multinational IT company, HP Inc.

In the intervening 35+ years, through hands on experience, Peter has built the skillsets and knowledge to provide clients with astute, commercially relevant IP advice across a wide range of situations, such as:

  • Building, managing and pruning commercially effective patent portfolios,
  • Enforcing patent portfolios, regionally or globally, to protect high-margin businesses or drive monetization,
  • Resolving complex, contentious IP disputes without litigation,
  • Negotiating a range of IP centric agreements, whether collaborative or contentious, including R&D, partnerships, suppliers, licensing in/out/cross,
  • Performing value-add, rather than asset counting, IP due diligence for M&A and investment opportunities,
  • Developing and articulating board level IP strategies for companies just starting out, or pivoting their current strategy and
  • In house IP function consulting, both for effective legal and financial processes, and for building and leading diverse, multi-national teams.

Peter received a degree in Natural Sciences (Physics) from Cambridge University, and qualified as a UK and European Patent Attorney. He has lived and worked in Barcelona, Spain and Palo Alto, California and is now based in the UK.


  • UK Chartered Patent Attorney (1994)
  • European Patent Attorney (1993)
  • 1991
    Certificate in Intellectual Property Law, Queen Mary and Westerfield College, University of London
  • 1981 — 1984
    BA in Natural Sciences (Physics), University of Cambridge

Career history

  • 2021 — present
    Of Counsel, EIP
  • 2021 — present
    Proprietor, PY IP Consulting Limited
  • 2015 — 2021
    SVP, DGC Strategy, Planning & Operations. Chief IP Counsel, HP Inc.
  • 2007 — 2015
    VP & Assistant General Counsel, IP, Hewlett-Packard Company
  • 2003 — 2007
    Director of IP, EMEA, Hewlett-Packard Company
  • 1995 — 2003
    Patent Attorney, Hewlett-Packard Company
  • 1990 — 1995
    Patent Attorney, British Telecom
  • 1984 — 1990
    Research Physicist, British Telecom Research Labs



  • Computer hardware
  • Consumer electronics
  • Photonics and optics
  • Software
  • Telecommunications