Patent Infringement Risks When Importing Foreign Solar Panels into the Philippines (Philippine Compliance Warning)
Introduction: why solar panel imports can create patent liability
Philippine patent rights can be enforced against imported goods and imported products produced by patented processes. For procurement entities, EPC contractors, developers, and importers of solar panels and related energy hardware, the main risk is that the imported item (or a component, feature, or manufacturing process behind it) may fall within the scope of a valid Philippine patent claim—exposing the importer and its supply chain to injunctions and significant monetary exposure.
This article explains what acts count as patent infringement in the Philippines, how courts determine infringement, why importation is a high-risk activity, and what compliance steps help reduce the risk of large civil damages.
Governing law on patents and infringement in the Philippines
The primary statute is the Intellectual Property Code of the Philippines (Republic Act No. 8293, 1997). It defines what constitutes patent infringement and provides civil remedies, including damages and related reliefs.
In determining infringement, recent Supreme Court rulings emphasize a claim-centered approach: the scope of protection is determined by the claims, and infringement analysis compares the accused product or process against those properly construed claims.
What counts as patent infringement (and why importation matters)
Under Republic Act No. 8293 (1997), patent infringement includes the making, using, offering for sale, selling, or importing a patented product, as well as importing or dealing in a product obtained directly or indirectly from a patented process, or using a patented process without authority.
This is especially relevant to procurement entities because importation itself can be an infringing act even if the importer did not manufacture the solar panels. A common misconception is that patent problems are only “manufacturer issues.” Under Philippine law, an importer can face direct infringement exposure if the imported goods fall within the patent claims.
How Philippine courts determine if a solar panel (or component) infringes a patent
The Supreme Court has recognized a two-step approach: (1) interpret the patent claims to determine scope and meaning; then (2) compare the allegedly infringing product or process against the properly interpreted claims. This approach is discussed in Phillips Seafood Philippines Corporation v. Tuna Processors, Inc. (G.R. No. 214148, 2023).
Claims control: “close enough” is not the legal test
A recurring point in patent disputes is that infringement is not determined by general similarity or marketing descriptions. What matters is whether the accused product or process appropriates the elements of the claim.
In Tuna Processors, Inc. v. Frescomar Corporation, et al. (G.R. No. 226445, 2024), the Supreme Court reiterated that the scope of protection is strictly determined by the claims. For infringement to exist, all elements of the claim must be appropriated; partial appropriation does not suffice. The ruling also explains that indirect infringementpresupposes direct infringement—there can be no contributory infringement if there is no direct infringement.
Direct vs. indirect (contributory/inducing) infringement risks in solar hardware procurement
Two risk buckets matter in procurement planning:
- Direct infringement: importing or selling an item that falls within a Philippine patent claim.
- Indirect infringement: inducing infringement or supplying components especially adapted for infringing use and not suitable for substantial non-infringing use, with the required knowledge—while still presupposing that direct infringement exists (Tuna Processors v. Frescomar, 2024).
In solar projects, indirect infringement issues can arise when a local entity knowingly procures and supplies specialized components that are primarily used to practice a patented invention in the Philippines (for example, certain patented mounting interfaces, junction box configurations, or inverter integration features), depending on the specific claims of an existing Philippine patent.
Damages exposure: why “lack of knowledge” is not a full shield
Civil damages can be substantial, particularly where large-volume shipments and project-wide deployments are involved. Under Republic Act No. 8293 (1997), the ability to recover damages can be affected by whether the infringer knew or had reasonable grounds to know of the patent. The law also provides that knowledge may be presumed when the product, packaging, or advertising materials carry a patent notice (e.g., “Philippine Patent” with the patent number).
For procurement entities, this means that ignoring patent signals (markings, supplier disclosures, patent-number references in manuals/datasheets, or prior disputes) can worsen exposure. A disciplined due diligence record is often important for risk management and dispute posture.
Border measures and Customs-related considerations (why goods may be held)
While patent infringement is commonly litigated as a civil action, importation creates an operational choke point at the border. The Bureau of Customs has issuances supporting border enforcement of intellectual property rights.
Customs rules identify prohibited importations that include goods presenting themselves as a substantial simulation of a duly patented product, without authorization. This concept appears in the Rules and Regulations Implementing Republic Act No. 8293 (CAO 06-2002, 2002). The Bureau of Customs also institutionalized an Intellectual Property Rights function through the Creation of a Permanent Intellectual Property Rights Division (CAO 09-2008, 2008), which supports the handling of IPR-related enforcement within Customs operations.
Operationally, an IPR-related hold can delay project timelines, increase storage and demurrage costs, and disrupt commissioning schedules—risks that often exceed the purchase price advantage of a cheaper overseas supplier.
Common solar import scenarios that raise patent infringement risk
Patent risk tends to rise in these recurring situations:
- “Feature-driven” sourcing: panels marketed for specialized features (e.g., unusual cell interconnection methods, module-level power electronics integration, specialized encapsulation or backsheet technology), where those features may map onto patent claims.
- Drop-shipping or trader structures: the local buyer imports under its own name with limited upstream warranties, making it the easiest defendant to sue locally.
- Component mixing: mixing modules, optimizers, junction boxes, connectors, and mounting parts from different sources, which can create a combination that aligns with a patented claim set.
- “We use global patents” marketing: suppliers cite foreign patents or patent-pending status; this should prompt a check for corresponding Philippine patents, because Philippine infringement depends on Philippine patent rights.
Compliance steps for procurement entities to reduce infringement and damages risk
Below is a due diligence set that aligns with how infringement is analyzed (claims-based) and how disputes arise (importation and commercial deployment):
| Risk-control step | What to do | Why it matters |
|---|---|---|
| Philippine patent clearance search | Before award/PO issuance, run a Philippine patent search focusing on the panel technology and major components (and their alternatives). Document results. | Infringement is claims-based; searching helps identify patents whose claims may cover the imported goods. |
| Claims mapping (not brochure comparison) | Have counsel/technical experts map product features/process steps to each element of potentially relevant patent claims. | Supreme Court doctrine focuses on claims and element-by-element appropriation (Phillips Seafood v. Tuna Processors, 2023; Tuna Processors v. Frescomar, 2024). |
| Contractual risk allocation | Include IP infringement warranties, indemnities, defense obligations, and documentation duties in supply/EPC contracts. Require upstream flow-downs. | Even if the importer is sued, it needs contractual recourse and access to technical documents and supplier cooperation. |
| Documentation and notice hygiene | Collect datasheets, BOMs, manuals, labeling photos, and marketing materials; preserve them. Monitor patent markings and patent-number references. | Damages considerations can turn on knowledge or reasonable grounds to know; records help show diligence and manage disputes under Republic Act No. 8293 (1997). |
| Design-around / alternative sourcing | If claims mapping shows a risk overlap, consider switching to a non-infringing alternative, modifying specifications, or licensing. | Because infringement requires appropriation of claim elements, removing or changing a material element can reduce exposure. |
What to do if you suspect the imported panels may infringe a Philippine patent
If an internal review or a third-party notice raises a credible concern:
- Pause expansion of distribution/installation while counsel assesses direct infringement exposure tied to importation and sale.
- Perform a claims interpretation and comparison consistent with Supreme Court guidance (Phillips Seafood v. Tuna Processors, 2023).
- Check for possible licensing channels or evidence of authorization from the patentee.
- Prepare for border and project disruption risk, given Customs’ IPR enforcement functions recognized in CAO 06-2002 (2002) and CAO 09-2008 (2008).
Final observations
Importing foreign solar panels into the Philippines can create direct patent infringement exposure because importation is itself an infringing act when the goods fall within a valid Philippine patent claim under Republic Act No. 8293 (1997). Supreme Court rulings stress that infringement is decided by the patent claims and an element-by-element comparison, not by general similarity (Phillips Seafood v. Tuna Processors, 2023; Tuna Processors v. Frescomar, 2024). The most defensible approach is early Philippine patent clearance, careful claims mapping, and procurement contracts that require strong IP warranties and indemnities.
About Nicolas and De Vega Law Offices
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