Court rules Philips failed to prove Standard Essential Patent status and infringement; doctrine of patent exhaustion protects Bansals’ import of licensed chips.
In a landmark decision dated May 18, 2026, a Division Bench of the Delhi High Court, comprising Justices C. Hari Shankar and Om Prakash Shukla, set aside a previous judgment awarding damages to Koninklijke Philips Electronics NV (“Philips”) in a patent infringement suit against K.K. Bansal and Rajesh Bansal. The judgment, arising from two consolidated suits alleging infringement of Indian Patent No. 184753 relating to a decoding device for DVD players, clarifies critical aspects of Standard Essential Patents (SEPs), infringement proof, and patent exhaustion under Indian law.
The patent in question was asserted by Philips as an SEP essential to DVD technology standards set by the DVD Forum, a recognized Standard Setting Organization (SSO). Philips claimed the defendants’ DVD players infringed the patent and sought injunctions and damages, offering licenses on Fair, Reasonable, and Non-Discriminatory (FRAND) terms. The trial court had found infringement and awarded damages based on a royalty rate per DVD player sold, including punitive damages against Rajesh Bansal.
Upon appeal, the Delhi High Court undertook a detailed analysis grounded in statutory provisions of the Patents Act, 1970, and recent jurisprudence on SEP licensing, infringement proof, and patent exhaustion doctrine. The Court emphasized that a plaintiff claiming SEP infringement must establish, among other things:
1. The patent qualifies as an SEP by demonstrating compliance with standards set by an independent SSO with requisite essentiality certificates or claim charts showing mapping of patent claims to the standard.
2. Infringement must be demonstrated either directly by mapping the defendant’s product features to the patent claims or indirectly via mapping both the patent and defendant’s product to the relevant standard.
3. The plaintiff must show willingness to license the SEP on FRAND terms and that the defendant is an unwilling licensee.
Key findings of the Court include:
- Philips failed to prove that the Indian patent was an SEP. Though equivalent US and European patents had purported Essentiality Certificates (ECs), these were issued by private firms without expert witness testimony or detailed claim-to-standard mapping. The critical evidence—claim charts and standards documents—were either not produced or de-exhibited during trial, undermining the SEP status claim.
- Direct infringement was not proved. The evidence relied heavily on an affidavit of a technical expert who never testified in court and on an expert witness (PW-2) who conducted tests but did not submit detailed logs or allow cross-examination on the infringement analysis. Crucially, Philips failed to perform the essential product-to-claim mapping required for patent infringement claims.
- The defendants purchased the patented decoding devices embedded in chips from MediaTek through authorized distributors. The Court applied Section 107A(b) of the Patents Act (as amended), holding that patent rights exhaust upon sale by a person duly authorized under law. Thus, the defendants’ import and use of these chips could not constitute infringement.
- Philips did not produce any license agreements with third parties to substantiate that the royalty rates it charged were FRAND-compliant. Without such agreements or transparent disclosures, the Court could not uphold the damages awarded on the basis of these rates.
- The Court rejected the imposition of punitive damages based solely on Rajesh Bansal’s prior employment with Philips, finding no valid basis in the absence of proven infringement.
- The royalty calculation based on entire DVD players was unsustainable, as the patent covered only a decoding device (chip/PCB), not the full product.
In conclusion, the Delhi High Court quashed the damages award and ruled in favor of the Bansals, underscoring the stringent evidentiary burden on SEP holders and reinforcing the doctrine of patent exhaustion. The judgment provides clarity on the procedural and substantive thresholds for SEP infringement suits in India.
Bottom line:-
In a patent infringement case, it is necessary for the plaintiff to establish that the patent is a Standard Essential Patent (SEP), provide FRAND licensing terms, and demonstrate infringement through claim-to-product mapping.
Statutory provision(s): Patents Act, 1970 Sections 10, 48, 63-65 (Evidence Act provisions on secondary evidence), 107A(b).
This ruling serves as a critical precedent for patent enforcement involving SEPs in India, highlighting the necessity of clear standards compliance proof, rigorous infringement analysis through claim mapping, and transparent demonstration of FRAND licensing offers. It also affirms protections for downstream purchasers under the patent exhaustion doctrine, thus balancing patent holders’ rights with market realities.
K K Bansal v. Koninklijke Philips Electronics NV, (Delhi)(DB) : Law Finder Doc id # 2900496
