Stephen Walker

Patent and Trade Mark Attorney

Stephen Walker is a Chartered Patent Attorney, European Patent Attorney, and Chartered Trade Mark Attorney.

Stephen Walker_Lincoln IP

Stephen entered the profession in 2004 after undergraduate and postgraduate studies in laser physics, optoelectronics and spectroscopy at the University of Strathclyde and Imperial College London. He also worked as a test engineer at an optoelectronics start-up company.

Stephen has particular experience in proceedings before the European Patent Office (oppositions, appeals and oral proceedings), and foreign patent and design filing and prosecution strategies. 


BSc Laser Physics and Optoelectronics
University of Strathclyde

PhD Physics
University of Strathclyde/Imperial College London

Professional qualifications and affiliations
  • Chartered Patent Attorney (UK)
  • European Patent Attorney
  • Chartered Trade Mark Attorney (UK)
  • Fellow of the Chartered Institute of Patent Attorneys
  • Member of the Chartered Institute of Trade Mark Attorneys
  • Member of the European Patent Institute
  • Certified IP Patent Litigator
  • Certified IP Trade Mark Litigator

2003 – 2004
Test Engineer, Optoelectronics start-up

2004 to present
Private practice



  • Optical document security and anti-counterfeiting technologies
  • Optics, electronics and optoelectronics
  • Semiconductors and MEMS technologies
  • Software, computer implemented inventions and data processing
  • Artificial intelligence and machine learning
  • Human computer interfaces and machine vision
  • Instrumentation and diagnostic devices
  • Sporting goods and equipment
  • Water treatment and remediation
  • Drilling and mining technology
  • Renewable energy technologies
  • Building and construction
  • General mechanical engineering


  • International patent filing and prosecution
  • EPO oppositions and oral proceedings
  • Patent searching and patentability assessments
  • IP audits
  • Infringement and freedom to operate analysis
  • UK IPO opinions
  • Trade mark clearance, filing and prosecution
  • Copyright
  • Registered and unregistered designs