Read the full judgment text of CACV 191/2014 on BabelCite. This Court of Appeal judgment was delivered on 6 March 2017 before Hon Cheung JA and Barma JA.
Civil appeal – Patent Licence Agreement – licensing of patents said to be essential to GSM, GPRS, UMTS, CDMA and CDMA 2000 mobile communication standards – alleged failure to pay royalties – defendant's applications for further and better particulars, discovery and expert directions on issue of essentiality – whether defendant estopped from challenging essentiality of plaintiff's patents for manufacture of Licensee Licensed Products compliant with GSM, GPRS and UMTS standards – first instance judge held licensor/licensee estoppel extended to essentiality and dismissed applications in respect of those three standards – on appeal, plaintiff sought to uphold order on different grounds of contractual estoppel and estoppel by convention – whether essentiality was raised below – scope of licensor/licensee estoppel following Kerbing Consolidated Ltd v Dick [1973] RPC 68 – whether contractual estoppel is good law in Hong Kong, following Peekay Intermark Ltd v Australia and New Zealand Banking Group Ltd [2006] 2 Lloyd's Rep 511, Springwell Navigation Corporation v JP Morgan Chase Bank [2010] 2 CLC 705 and DBS Bank (Hong Kong) Ltd v San-Hot Industrial Company Ltd [2013] 4 HKC 1 – whether contractual estoppel open on the pleadings and determinable at interlocutory stage – whether estoppel by convention made out by recitals and definitions of the Agreement – held, licensor/licensee estoppel goes to ownership and validity only, not essentiality – held, contractual estoppel recognised in Hong Kong and applied on the proper construction of the recitals and clauses 1.6, 1.7, 1.11, 1.15 and 4.1 of the Agreement, which embodied a mutual assumption that the plaintiff's patents were essential to GSM/GPRS/UMTS standards and would necessarily be used in manufacturing Licensee Licensed Products – held, estoppel by convention also made out – appeal dismissed, with costs of the appeal to be paid by the defendant to the plaintiff on a party and party basis (order nisi) with certificate for two counsel; costs of the hearing below to be in the cause.
Legal issues: Scope of licensor/licensee estoppel as to essentiality · Recognition and application of contractual estoppel in Hong Kong · Whether contractual estoppel can be raised on the pleadings and determined at this stage · Estoppel by convention as an alternative ground
Outcome: Appeal dismissed. The Court of Appeal upheld the judge's order dismissing the defendant's applications for discovery, further and better particulars and expert directions in relation to the GSM, UMTS and GPRS standards, albeit on different grounds (contractual estoppel and estoppel by convention).
Cited by 1 case