Analysis of Contractual Restrictions on Patented Products and Licences under the Patents Act 1994
The Patents Act 1994 contains specific provisions regulating contracts related to patented products and licences to work patented inventions. These provisions aim to balance the rights of patent holders with the interests of purchasers and licensees, preventing anti-competitive practices and ensuring contractual fairness. This analysis examines the key statutory provisions, their purposes, definitions, and relevant legal implications under the Act.
Scope and Application: Section 50A
"This Part applies only to— (a) any contract for the supply of a patented product; (b) any licence to work a patented invention; and (c) any contract relating to any such supply or licence, that was entered into or granted on or after 23 February 1995 but before 1 December 2008." — Section 50A, Patents Act 1994
Section 50A delineates the scope of the Part governing contracts involving patented products and licences. It restricts application to contracts entered into within a defined timeframe—between 23 February 1995 and 1 December 2008. This temporal limitation reflects legislative intent to regulate contractual terms during a specific period, possibly due to evolving patent law frameworks or policy considerations.
The provision exists to clarify the ambit of the statutory controls, ensuring that only contracts within the specified dates are subject to the restrictions and protections provided. This prevents retroactive application to earlier contracts and excludes contracts made after 2008, which may be governed by updated legal provisions or commercial practices.
Prohibition of Restrictive Contractual Terms: Section 51(1)
"any condition or term of a contract for the supply of a patented product or of a licence to work a patented invention, or of a contract relating to any such supply or licence, is void insofar as it purports— (a) in the case of a contract for supply, to require the person supplied to acquire from the supplier, or the supplier’s nominee, or prohibit the person supplied from acquiring from any specified person, or from acquiring except from the supplier or the supplier’s nominee, anything other than the patented product; (b) in the case of a licence to work a patented invention, to require the licensee to acquire from the licensor or the licensor’s nominee, or prohibit the licensee from acquiring from any specified person, or from acquiring except from the licensor or the licensor’s nominee, anything other than the product which is the patented invention or (if it is a process) other than any product obtained directly by means of the process or to which the process has been applied; or (c) in either case, to prohibit the person supplied or the licensee from using articles (whether patented products or not) which are not supplied by, or any patented process which does not belong to, the supplier or licensor, or the supplier’s or licensor’s nominee, or to restrict the right of the person supplied or the licensee to use any such articles or process." — Section 51(1), Patents Act 1994
Verify Section 51 in source document →
Section 51(1) invalidates contractual terms that impose restrictive conditions on purchasers or licensees beyond the patented product or invention itself. Specifically, it prohibits:
- Obligations to buy exclusively from the supplier or licensor or their nominees;
- Prohibitions on acquiring goods or services from other specified persons;
- Restrictions on the use of non-supplied articles or processes.
The rationale behind this provision is to prevent anti-competitive tying arrangements and ensure that patent holders cannot leverage their patent rights to impose unfair limitations on downstream commercial activities. By voiding such terms, the law promotes market competition and protects consumers and licensees from coercive contractual practices.
Termination Rights Post-Patent Expiry: Section 52(1)
"Any contract for the supply of a patented product or licence to work a patented invention, or contract relating to any such supply or licence, may at any time after the patent or all the patents by which the product or invention was protected at the time of the making of the contract or granting of the licence has or have ceased to be in force, and despite anything to the contrary in the contract or licence or in any other contract, be determined, to the extent (and only to the extent) that the contract or licence relates to the product or invention, by either party on giving 3 months’ notice in writing to the other party." — Section 52(1), Patents Act 1994
Verify Section 52 in source document →
Section 52(1) empowers either party to terminate contracts related to patented products or licences once the relevant patent protection has expired. This termination right overrides any contrary contractual terms, subject to a three-month written notice.
This provision exists to reflect the fundamental principle that patent rights are time-limited monopolies. Once the patent expires, the exclusive rights cease, and parties should not be bound indefinitely by contracts premised on patent protection. The termination right facilitates commercial flexibility and prevents perpetual contractual obligations that could hinder competition or innovation.
Definitions Clarifying the Part’s Application: Section 52(2)
"In subsection (1), “patented product” and “patented invention” include respectively a product and an invention which is the subject of an application for a patent..." — Section 52(2), Patents Act 1994
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Section 52(2) extends the definitions of “patented product” and “patented invention” to include products and inventions under patent application. This ensures that contracts relating to pending patent rights are also covered by the Part’s provisions.
The purpose of this definition is to prevent circumvention of the statutory protections by entering into contracts before patent grant but after application. It safeguards the interests of patent applicants and maintains consistency in the treatment of patent-related contracts during the application process.
Defence in Patent Infringement Proceedings: Section 51(2)
"In proceedings against any person for infringement of a patent, it is a defence to prove that at the time of the infringement there was in force a contract relating to the patent made by or with the consent of the claimant or a licence under the patent granted by or with the consent of the claimant and containing in either case a condition or term void by virtue of this section." — Section 51(2), Patents Act 1994
Verify Section 51 in source document →
Section 51(2) provides a statutory defence in patent infringement proceedings where the contract or licence in question contains terms void under Section 51(1). This means that if a patent holder attempts to enforce a patent against an alleged infringer, the latter may defend themselves by demonstrating that the contract involved includes impermissible restrictive terms.
This defence mechanism exists to reinforce the invalidity of anti-competitive contractual terms and to prevent patent holders from indirectly enforcing void conditions through infringement claims. It promotes fairness and prevents abuse of patent rights in contractual enforcement.
Cross-References and Limitations: Sections 52(4) and 52(5)
"Without prejudice to any other right of recovery, nothing in subsection (1) is to be taken to entitle any person to recover property let under a hire‑purchase agreement within the meaning of the Hire‑Purchase Act 1969." — Section 52(4), Patents Act 1994
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"This section is without prejudice to any rule of law relating to the frustration of contracts and any right of determining a contract or licence exercisable apart from this section." — Section 52(5), Patents Act 1994
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Sections 52(4) and 52(5) clarify the interaction of the termination right under Section 52(1) with other legal regimes. Section 52(4) excludes hire-purchase agreements governed by the Hire-Purchase Act 1969 from the termination provisions, preserving the rights of parties under such agreements.
Section 52(5) preserves common law principles such as frustration and other contractual termination rights that exist independently of the statutory termination right. This ensures that the statutory provisions complement rather than override established contract law doctrines.
Conclusion
The Patents Act 1994’s provisions on contracts for patented products and licences serve to prevent restrictive and anti-competitive contractual terms, protect parties post-patent expiry, and provide clear definitions and defences in infringement proceedings. By regulating the contractual landscape surrounding patents, the Act promotes fair commercial practices and balances the interests of patent holders with those of purchasers and licensees.
Sections Covered in This Analysis
- Section 50A, Patents Act 1994
- Section 51(1) and (2), Patents Act 1994
- Section 52(1), (2), (4), and (5), Patents Act 1994
Source Documents
For the authoritative text, consult SSO.