Audio and video editing software patent infringement litigation

The Background

End-client was a plaintiff in a cross-border patent infringement litigation of their flagship product

Project Details



  • Products for both client and defendant
  • Re-review over 40K files tagged responsive by a prior review team

  • Re-review over 40K files tagged responsive by a prior review team

  • Validate files responsive only to the infringed application features including files with third party source code

  • More than 25 file types (images, emails, text, pdfs, json, etc.) including 7 programming languages (Python, C, C++, Java, PHP, Javascript, Angular)


Solution Management

  • Cross-functional expert team including attorneys, IP experts and tech specialists built a customized workflow and performed the review

  • Created cohorts based on technology expertise and segregated dataset based on:
    • file extensions with high probability of source codes
    • programming languages
  • Assessed code structure and functions, and segregated relevant source code applicable for UI or backend
  • Deployed IDEs to open files with technical issues programming languages
  • Assessed codes for use of third-party and open-source code from infringement perspective
  • Segregated open-source code for videos and marked them as non-responsive
  • Reviewed files for third-party source code for AEO tag
  • Identified libraries with external dependencies/algorithms and incorporated without proper licensing or attribution



  • Appropriately tagged 40K+ files
  • Identified 11.5K files which contained disputed application code
  • 70% reduction of overall responsive universe of documents - identified c. 30k files which were not part of the code in litigation but were related to supporting features of the application
  • Estimated cost saving of 80% of attorneys’ time and resources
  • Identified features related to user interface, potentially a part of the infringed code

Facts & Figures


Lines of code




File types


Programming languages


Non-relevant files identified


Cost savings

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