Calculating Trade Secret Damages in Chinese Courts
Chinese courts calculate trade secret damages through actual losses, infringer profits, or license multiples, applying apportionment and punitive multipliers up to five times base losses.
Contribution Rate Methodology
Meaning
Measured against the total economic value of a finished commercial product, an analytical framework isolates the specific proportional value added by an infringed patent or software component. Chinese courts implement contribution rate methodology to prevent patent holders from claiming total gross profits on complex machinery containing hundreds of non-infringing structural features. Valuation experts divide profit between protected technical features and unprotected industrial designs, brand equity or manufacturing efficiencies.
The calculated percentage determines the precise proportion of overall enterprise profits subject to damage awards.
Apportionment Factor
Determining proportional technical value requires isolating the patented feature from overall product functionality and customer demand driver analysis. Apportionment factors include technical novelty, consumer purchasing motivation, regulatory compliance requirements and substitute technology availability. Where a patented sensor represents one component inside an industrial assembly line, expert appraisers assess whether the sensor drives final purchasing decisions or merely assists auxiliary processing.
Brand reputation and established sales distribution channels receive dedicated value deductions. Component cost ratios relative to total bill-of-materials costs provide supplemental quantitative reference points during technical evaluation.
Technical Valuation
Judicial appraisal agencies apply quantitative testing and market comparative analysis to establish baseline technical contributions. Appraisers compare profit margins of products utilizing the contested technology against baseline products built without the specialized feature. When direct market comparisons are unavailable, technical experts evaluate engineering cost savings, energy efficiency gains or reduced scrap rates produced by the trade secret.
Written appraisal reports specify numerical percentages representing technical input.
Judicial Adjustment
Courts retain ultimate authority to modify calculated contribution percentages based on equitable principles and litigating conduct. Judges reduce calculated rates when rights holders delay enforcement or fail to provide technical documentation during discovery. Scale adjustments occur when infringing features form mandatory industry standards versus optional premium additions.
Statutory damages apply if technical complexity renders contribution calculation impossibly speculative.