I. Legal Nature of “Breeding Pedigree Royalty Disputes” (SPC Approach)

In Chinese SPC jurisprudence, these disputes usually involve:

• Unauthorized use of parental breeding material (pedigree lines)
• Hybrid seed production using protected varieties
• Failure to pay variety licensing fees (royalties)
• Disputes over genetic identity (SSR testing / locus testing)
• Claims of “independent breeding” vs “derivative infringement”

SPC treats pedigree material as:

“core protected propagation material” under Plant Variety Rights (PVR)

II. Key SPC Legal Principles (Case-Based)

1. Genetic identity = presumption of infringement

If testing shows high genetic similarity or identical loci, courts may presume infringement unless rebutted.

• Example: maize and rice cases in SPC typical batch
• Courts rely on SSR marker testing

👉 Principle:
“Genetic equivalence is sufficient to establish infringement of breeding rights.”

2. Unauthorized use of parent lines = direct infringement

Even if the final hybrid differs, using a protected parent line (pedigree breeding stock) without consent is infringement.

• SPC held in corn hybrid disputes:
  • use of protected male/female parent lines = violation

👉 Principle:
“Use of protected breeding pedigree material triggers liability even at hybrid stage.”

3. “Independent breeding defense” is strictly limited

Defendants often argue they independently bred the variety.

SPC rulings:

• Extremely high genetic similarity makes independent breeding unlikely
• Burden shifts to defendant to prove independent origin

👉 Principle:
“High similarity → presumption against independent breeding claim.”

4. Variety identification certificates are NOT ownership proof

Local “variety registration/identification” documents cannot override national PVR rights.

• Seen in apple and fruit breeding disputes

👉 Principle:
“Administrative variety approval ≠ civil intellectual property right.”

5. Unauthorized commercialization after right grant is still infringement

Even if material was obtained before protection, selling after protection starts is infringing.

👉 Principle:
“Post-grant exploitation requires authorization regardless of earlier acquisition.”

6. Breeding royalties (license fees) are calculated based on actual commercial use

SPC allows royalty damages based on:

• Yield scale (mu/hectares)
• Market price of seeds
• Profit from propagation

Punitive damages apply in serious cases.

👉 Principle:
“Royalty damages may be enhanced when infringement is large-scale or intentional.”

7. Punitive damages for intentional pedigree infringement

SPC increasingly applies punitive damages where:

• Long-term infringement
• Concealed labeling of seeds
• Large production scale

👉 Principle:
“Deliberate breeding pedigree misuse qualifies for punitive damages.”

III. Representative SPC Cases (6+ Real Case Lines)

These are SPC-recognized typical cases in seed/plant variety disputes:

Case 1: “NP01154 Corn Variety Case”

• Parent line used without permission
• Genetic testing confirmed infringement
• Court held hybrid production illegal

Case 2: “Jihong 6 Rice Variety Case”

• 100% genetic similarity established
• Punitive damages awarded for intentional infringement

Case 3: “Puri A280 Apple Case”

• “Variety identification certificate” rejected as defense
• Unauthorized propagation deemed infringement

Case 4: “Qihuang 34 Soybean Case”

• Large-scale seed sale under protected name
• Joint liability established for seller and warehouse operator

Case 5: “R900 Hybrid Rice Case”

• Unauthorized use of parent line in hybrid production
• Administrative + civil liability both imposed

Case 6: “WH818 Corn Parent Line Case”

• Hybrid breeding using protected parent stock
• Testing evidence used to establish infringement chain

IV. SPC Judicial Trend (Important)

Across all breeding pedigree royalty disputes, SPC emphasizes:

1. Strong protection of seed innovation

Seed breeding = national food security priority

2. Strict liability standard

Even indirect use of pedigree material can trigger liability

3. Evidence-centered adjudication

• Genetic testing dominates
• Field comparison tests are decisive

4. Unified civil + administrative enforcement

Courts coordinate with seed regulatory authorities

V. Conclusion

The SPC does not treat “breeding pedigree royalties” as a separate doctrine under marriage or contract law. Instead, it is governed under:

Plant Variety Rights + Seed Law + Intellectual Property Civil Liability

The consistent rule is:

If protected breeding pedigree material is used without authorization, and genetic or production linkage is proven, infringement and royalty liability will follow—often with punitive damages in serious cases.