Expert Witness Services

Sandy Richardson

Ph: (02) 9986 3890


Alexander (Sandy) Richardson is the Managing Director of Design Edge and has built an extensive knowledge of design, manufacturing, mechanical engineering, and intellectual property matters over his 35+ years in the role. Throughout his career Sandy has worked on countless projects across many different industries, thus building his knowledge of design and manufacturing processes across the industry and expanding his understanding of intellectual property and liability matters.

Naturally this background has positioned Sandy perfectly as a reputable industry expert and has seen him provide expert witness services and expert guidance on various cases relating to patent infringement, assessment of mechanical patents and claims, design registration assessment as well as insurance incidents, liability claims, and many other matters.


  • Patent infringement
  • Patent Commercial Litigation
  • Claims and integers meaning, scope & comparison
  • Drawings assessment & interpretation
  • Prior art assessment
Design Registration
  • Design Registration Infringement - assessment of shape & configuration
  • Design Registration Commercial Litigation


  • Industrial Design
  • Product Design
  • Design detailing
  • Mechanical operation
  • Product structure
  • Part forms
  • Materials used & performance suitability
  • Product use & safety
  • Functional suitability
  • Manufacturing
  • Quality Control
  • UX Design – user interface, logic trees,
  • Product Branding
  • Assessment of ‘fit for purpose’
  • Standards compliance

Some specialist areas of knowledge include electrical design and international electrical safety, pool and outdoor equipment, refrigeration, lighting, furniture, plumbing and irrigation, data logging, formwork systems, transportation and utility vehicle hardware, biometric devices and more.


  • Bird & Bird [2023] – Design Registration Claim for Mechanical Valve (Affidavit)
  • Spruson & Ferguson [2022] – Patent Claim for Glass Door Hinges (2 Affidavits, Joint Experts Report, Court Appearance)
  • Sparke Helmore [2020] – Liability Claim for Towable Inflatable Watersport Tube (Liability Claim, 2 Reports)
  • Banki Haddok Fiora [2015] – Patent Claim for USB Module (Affidavit)
  • Griffith Hack [2013] – Patent Claim for Fuse Labelling (Affidavit)
  • Moray & Agnew [2013] – Design Registration Claim for Latching Housings (2 Affidavits)
  • Ashurst Australia [2012] – Design Registration Claim for Siding Profiles (3 Affidavits, Court Appearance)

In these cases Sandy has personally prepared reports and affidavits, expert witness conclave and joint reports, attended court and responded to cross examination and provided case management.

Should you require any expert witness services, expert advice or would like to request a CV, please get in contact by calling (02) 9986 3890 or email