Introduction
Many companies believe that owning twenty or fifty patents means they already have a strong patent portfolio.
That is not always true.
If those patents protect substantially the same technical point, a competitor may still avoid them by changing one structure, replacing one component or adopting another technical solution.
Patent portfolio planning is therefore not about collecting as many patents as possible. It is about placing a limited number of patents around the technologies and commercial positions that matter most.
1. Owning Patents Is Not the Same as Having a Strategy
Suppose a company has filed twenty patents relating to a heated cup. If most of them protect only minor variations of the same heating structure, a competitor may still enter the market by using a different structure with a similar function.
The number of patents may look impressive, but the practical protection may remain narrow.
A genuine patent strategy asks:
Which technical features create the product’s main competitive advantage?
How might competitors attempt to design around the core patent?
Which alternative solutions are commercially realistic?
Which future improvements are sufficiently developed to protect?
How should the filing budget be allocated?
The objective is not to block every theoretical alternative. It is to make commercially meaningful design-arounds more difficult, expensive or risky.
2. What Is a Patent Portfolio Strategy?
A patent portfolio strategy uses a coordinated group of patents to protect:
The current product;
The core technology;
Key components and technical relationships;
Major alternative solutions;
Important application scenarios; and
Foreseeable development directions.
Each patent defines a particular legal boundary. A portfolio creates several complementary layers of protection.
One patent may protect the core structure. Another may cover an alternative configuration. Further applications may protect the overall system, manufacturing method, control process or specific use.
The value lies not only in each individual patent, but also in how the patents work together.
3. A Three-Layer Protection Model
Consider a folding electric bicycle whose main innovation is its folding hinge.
A single patent protecting the current hinge may not be enough. A competitor could use another hinge structure that performs a similar function but falls outside the claims.
A stronger portfolio may contain three layers.
Core Protection
The first layer protects the structure actually used in the commercial product.
The claims should focus on the essential technical relationships that create the product’s main advantages, rather than being unnecessarily limited by minor details.
Alternative Solutions
The second layer protects technically workable alternatives.
If the product uses an A-type hinge, the company may also consider protecting B-type or C-type solutions that competitors are likely to adopt, provided those alternatives have been sufficiently developed and disclosed.
This makes it more difficult to avoid the portfolio through a simple structural substitution.
Extended Protection
The third layer covers the broader product system and reasonably foreseeable improvements, such as:
The connection between the hinge and frame;
The locking or safety mechanism;
The folding sequence;
The overall frame structure;
Related control or detection systems; and
Manufacturing or assembly methods.
Together, these layers provide greater protection than a single patent covering only the current product structure.
4. Why One Patent Is Rarely Enough
Patent protection is determined mainly by the claims, and every claim has legal boundaries.
A competitor may attempt to avoid a patent by:
Replacing a component;
Changing a connection relationship;
Rearranging the operating steps;
Using another material;
Moving a function to a different module; or
Adopting another control method.
Whether the modified product still infringes depends on the claim language, the technical facts and the applicable infringement rules.
A single patent creates one principal line of protection. A coordinated portfolio creates a broader protected area.
This is why companies often file several related applications around an important product. The purpose should be complementary coverage, not repetition.
5. Three Common Portfolio Approaches
There is no single portfolio model suitable for every company.
Comprehensive Coverage
This approach considers major product modules, components, connection relationships, methods and technical variations.
It can create dense protection, but it is expensive to file, prosecute and maintain. It is generally more suitable for large companies or strategically important technology platforms.
Key-Position Strategy
This approach focuses resources on the technologies that create the greatest commercial value.
A company protects the core solution and its most likely alternatives, while avoiding unnecessary applications for ordinary or replaceable features.
For many small and medium-sized companies, this is the most practical strategy.
Competitor-Path Strategy
This approach anticipates how competitors may attempt to differentiate or design around a product.
Where the company has already developed workable solutions in those directions, it may consider protecting them before competitors enter the same technical area.
This strategy depends heavily on technical and commercial judgment. Protecting an unlikely development direction may provide little value, while correctly identifying an important competitor path may significantly increase design-around costs.
6. When Should Portfolio Planning Begin?
Patent planning should normally begin before the product is publicly launched.
A useful window is after the core technology has become sufficiently clear but before public disclosure, sale, exhibition or unrestricted customer delivery.
At this stage, the company can assess:
The core invention;
Alternative technical solutions;
Product-level integration;
Future improvements;
Design-around risks; and
Filing priorities.
Once the product has been publicly disclosed, some subject matter may lose novelty or become more difficult to protect.
There is also a competitive risk. If important alternatives remain unprotected, another party may independently develop and patent them, potentially restricting the company’s future product development.
Ideally, patent planning should form part of the research and development process rather than being considered only after the product reaches the market.
7. Patent Filing and Portfolio Planning Are Different
A patent filing asks:
Can this particular invention obtain patent protection?
A patent portfolio strategy asks:
Which inventions should be protected, from which technical perspectives and in what sequence, so that competitors cannot easily avoid the overall protection?
The first question concerns one application.
The second concerns the relationship among multiple applications, products, competitors, future technology and budget.
Filing more applications without a coordinated plan may create a collection of unrelated patents rather than a commercially useful portfolio.
8. A Practical Strategy for Smaller Companies
Patent portfolio planning does not require hundreds of applications.
A smaller company may obtain stronger protection from five coordinated patents than from thirty repetitive or unrelated filings.
A cost-conscious portfolio may prioritise:
The core technical solution used in the product;
One or two major alternative solutions;
A key component or system relationship;
An important manufacturing or control method; and
A clearly developed next-generation improvement.
The appropriate number of applications depends on the technology, competitive environment, product value and available budget.
Coordination and commercial relevance are generally more important than volume alone.
Conclusion
The purpose of a patent portfolio is not to collect certificates. It is to reduce the risk that competitors can reproduce the commercial value of a product through minor technical changes.
Before filing an application, a company should ask:
What position does this patent occupy in the overall portfolio?
Which product or business objective does it support?
How might a competitor attempt to avoid it?
Is another application needed to cover that alternative?
Does the expected commercial value justify the cost?
Effective patent strategy requires technical understanding, legal analysis and commercial judgment. Patents should be planned as a coordinated system rather than filed as isolated applications.
For assistance with patent portfolio planning, patent mining, competitor analysis or design-around strategy in China, contact the Reehor IP team.
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