1. Introduction

Directed Prosecution is an approach for enhancing protection on a specific invention and is also helpful in eliminating complex elements from current patent applications when they may become important to a future infringement lawsuit or eventually lead to a continuation application. Directed prosecution helps to assure that the claims contain all necessary elements of the target companies' products.

Aligning patent claim scope with target products/licensing goals

• A complete IP portfolio can be developed by strengthening the claims and managing the scope of the protection. This also increases the value of patent and its enforceability such that the associated companies, businesses and/or applicants can benefit from it.

 

• Directed prosecution helps inventors to achieve business goals or target certain markets by structuring the claims, which further helps them to build a commercially valuable portfolio and improves their legal and licensing capability and gives them a good ROI.

 

• The directed prosecution targets the possible infringer’s products by means of claim limitations to major features. It uses Evidence of Use (EoU) to make a stronger case for patent licensing prospects and improving enforceability of patent portfolio. The process involves the following steps:
  • Review of the claim elements that targeted the identified competitor products or claimed licenses during the stages of prosecution.
  • The changes to how infringement is defined will give greater flexibility in prosecuting your patent in order to better protect your invention.

 

• Appropriate continuations will allow Patentees to better protect their investment both in the form of continued litigation and through the potential licensing of their invention.

 

Directed prosecution of your claims will lead to stronger and more effective patent protection that will increase the probability of monetization by increasing the amount of claimant product coverage and will decrease the likelihood of infringement from other inventors who may try to make, use, and/or sell your patented product.

2. Legal Strategy Foundations

With general prosecution of a patent, you submit your claims and await the patent office to review and decide whether they will approve the issuance of your patent. If the patent office does not approve your claims or if you receive objections from the patent office in response to your submission, you generally file a response back to the patent office and request a response back from them. With directed prosecution of your claims, the patent office will also provide your claims with the same level of protection as with general prosecution however, this involves proactive management of the claims process.

The claims in a directed prosecution are drafted for maximum coverage while avoiding prior art. To do this, you draft your claim in a multiple-layered format. You draft a broader claim as an independent claim, then draft narrower claims to further refine your invention.

Part of the directed prosecution process involves changing and/or reducing the scope of your claims. You can reduce your claims by utilizing specification charts, claim-to-figure mapping, EoU charts, and/or AI-based claim evaluation.

3.  When is a Directed Prosecution recommended?

After receiving a Notice of Allowance (NoA), companies typically have three months to file amendments or continuations of their patent applications. Their teams examine the application specifications to determine if there are critical embodiments that do not appear in any of the allowed claims, but are likely to exist in the competing products/services.

Reasons to Use Directed Prosecution:

• By including important features that were previously omitted from the allowed claims, directed prosecution makes it easier to enforce a patent and provides substantial evidence of use, thereby enhancing the negotiating power of the patent owner for both licensing and litigation.

• There is increased productivity and cost savings because the amount of back-and-forth adjustments that need to be made, along with the resources associated with making those adjustments, are greatly reduced.

• A good competitive analysis that is supported by an EoU chart gives the patent holder a strong bargaining position. The patent holder is able to request a higher royalty rate based on the competitive nature of the industry.

• Patent specification and corresponding products in the market are monitored and the claim elements are mapped to existing products. Moreover, various organizations run systems to monitor patent applications awaiting examination and new market products. They have a system to mask any claim gaps using active prosecution continuations until the infringer attempts to capitalize on those gaps.

4. Process of Directed Prosecution

Pre-filing market/product analysis: The first step is to analyze the products and markets to identify the gaps. These gaps can be utilized to gain insights on what can be used in future claims.

Drafting flexible claim sets: Claims are drafted keeping in mind business goals and legal aspects. The claims are optimized so as to prevent invalidity attacks.

Receiving NOA: After receiving the NOA, critical elements are identified that are missing from the claims or embodiments from patent specification and then products and/or technologies are identified for the same.

Developing EoU Charts: Evidence of Use charts are constructed showing claimed elements of NOA application and identified missing elements or embodiments of patent specification against the product.

Drafting new set of claims/ Continuation application: Based upon EoU different scopes of claims can be drafted and each claim scope can be used to file a continuation application.

Monitoring prosecution history for licensing defense: This is required to control the way courts will define claim terms. The revisions a continuation’s file history makes or the language it adds can be significant.

5. Importance of Directed Prosecution

High licensing value: Directed prosecution provides high licensing value as it aligns exactly with the products or technologies of the patent.

High chance of infringement detection: Targeted prosecution ensures that the patent will be effective for infringement detection and prosecution.

High negotiating power: Owning specific patent gives patent owners an advantage to negotiate across licensing agreements.

Diversified Patent Portfolio: Adding new continuing applications helps you build a comprehensive and technically sound IP portfolio.

Patent Safety: Ensures patent safety from any future legal actions.

6. Advanced Claim Strategies

• Layered Claiming: From General to Specifics

A hierarchical structure between the broadest independent claims and the narrowest dependent claims creates layers of claims. The broadest independent claims typically are drafted to protect inventions generally with broad protection. The narrowest dependent claims protect specific implementations, configurations, and examples of the claimed invention.

The layered structure serves as a fallback for protection. If an independent claim is rejected, declared invalid, or limited by an examiner, dependent claims may still be valid and enforceable.

• Claim Charting Alignment: Drafting Claims for Future Use

The claims are drafted to allow for future claim charting so that each claim limitation can be clearly correlated with specific identifiable features of a real-world product or service.

This alignment makes preparing infringement claim charts, licensing discussions, and litigation simpler to prepare by providing a clearer correlation between a competitor’s product or process and the claimed limitations. Having claims with sufficient specificity will facilitate your ability to show how a competitor's product or process relates to each limitation in your claims, improving both your ability to enforce your claims against a competitor through litigation, as well as your ability to commercialize a product based on your patent.

• Blocking versus Surrounding Claims

Blocking claims are used to protect the core or essential features of a product/technology so that no other company can create an identical product and thereby infringe on your patent. Surrounding claims protect certain features of the product/technology that are not considered essential to the product's function, as well as variations from the product.

7. Industry-Specific Approaches

Pharma and Biotech - Focusing on the Molecule, Formulation, and Method of Use

Patent prosecution strategies for pharmaceuticals and biotechnology are based on the specific molecule, formulation, and method of use. Many clients are advised to give "picture" claims to exempt or be defined by the way the product is manufactured, but these picture claims are commonly used early in prosecution and do not provide "full" asymmetric legal protection until very late in the prosecution process. Nonetheless, although heterogeneous (i.e., the picture claims will form a "picket fence" around the molecule), they also provide good evidence of the invention and will form a legal basis for opposing patent examiner's decisions. Furthermore, by developing numerous variations of picture claims on the same invention, including multiple independent claims for each form of use of the patent, pharmaceutical patent clients will be unable to protect against generic competitors. Additionally, the majority of the biotechnology industry will typically modify US patents to conform to the methods of use of US patents as opposed to product or process-of-manufacture methods of use for European patent applications. These modifications illustrate how there is a need to adapt to various nodes and regions while keeping in mind local legal rule set (e.g., FDA delays), as well as the Hatch-Waxman Act extension.

AI & Software – Operational Descriptions vs. Implementation Excess

The prosecution of software and AI often targets the match between the actual implementation details used to create the software or AI and how the software or AI is described in terms of what it does (functional claim). For example, a functional claim could be a non-descriptive functional description of the matching of one type of item to another during a checkout process (functional description). When this type of functional claim is argued against under Section 101 of the U.S. Patent Act under the guidelines established by Alice, there are now requirements for patent applicants to provide additional technical detail concerning the claimed invention; detail that shows there is an added value to how a computer will perform and give added benefits when it is used within a product, or how it solves a technological problem. Courts and examiners increasingly demand that claims describe some specific issue and corresponding solution within an engineering context rather than a general and abstract broad function. Targeted prosecution for this type of claim generally includes making changes to the claims for particular technology applications, while respecting the ability of the claimant to do business. It also combines a patent claim with each of the purposes of the patented, applied and strategic products installed. 

Targeting of Product Structure and Component by Electronics

Electronics and mechanical engineering both involve prosecution with direction. It also limits the direction, and thus limits the focus on product structures and components or sub-systems. These two areas are appropriate for illustrating discrete parts and their relationship to each other. Once again, successful patents will have been based on the design of well-designed structural claims. Patent attorneys typically describe complex claims of structure in all claims of parts of a system. The parallel to pharmaceuticals is the "picture claim" process; however, a physical structure is required (e.g., product major components, e.g., gears, connectors, circuit diagrams, and chassis comprise the basis of the picture components used to create strong patent protection.

In biotech, when prosecuting through physiologic interactions, the greater the degree to which the physiologic-based nature of the science is not deterministic, and the functional relationship to an energy-based or an energy based interaction, is stronger than the least amount of determinism or more determinism; therefore, the nature of function and definition of the function must also have a substantial relationship to the energy-based theory supporting it. All elements of the inventive process will have unique claims as unique hinge, specific arrangement of a sensor or specific connection of circuits is part of the claimed Inventive process.

8. Global Viewpoints

Patent Office Procedures Unique to each country’s system

When prosecuting a case directed at an entity, such prosecution should follow the rules and practices of each participating country’s patent office.

The below chart depicts each country and the various elements of patent law:

US (USPTO): Subject matter eligibility (to include software/AI under Section 101), and Written Description under Section 112 are very important.

EPO (European Patent Office): The inventive step is an essential part of the problem-solution approach to assessing whether there may be patentable inventions in Europe.

CNIPA (Chinese National Intellectual Property Administration): In China, there is much greater emphasis on the rapid granting of patents than in other countries, including the need for a good technical description in order to obtain patent protection.

JPO (Japanese Patent Office): In Japan, the totality of the technical contribution must be clearly identified with respect to any claim made, and claims are much more frequently preferred to be narrowly drafted.

Navigating Through Different Patent Office Trends

Different Patent Offices have different legal prejudices (and/or things to watch out for):

USPTO: Abstract Idea (Section 101 rejections, including AI/software) or Indefiniteness (Section 112) will be deal breakers for possible rejections.

EPO: Do not make any abstract statements – provide details on while solving that defined technical problem using technical resources.

Harmonizing Claim Coverage Among Countries

In preparing to enforce or license your patents globally, your patent claims will need to:

Contain the same core coverage in each country; Ensure that all the elements of each of your claims conforms to the respective legal requirements for patents in the respective country.

Reduce as many unjustified differences as possible that will create holes in your patent enforcement.

Example: A claim that has been granted in the US requires that modifications be made to comply with the EPO requirements for technical effect but will cover very similar features for the same product.

9. Ethical and Policy Considerations

Preventing Patent Overreach - Horizons for Innovation

Aggressive claims may inadvertently limit innovation - not necessarily only by others, but also by small inventors, scientists, and partners.

A lot of overly broad claims of inventions have technical words that create a large number of concepts beyond the actual invention. This may create an environment of "patent thickets", preventing incremental innovations from happening and creating legal risks for start-ups or research institutions. 

In order to prevent one party from monopolising a section of the market or limiting other responsible inventors from innovating in good faith, aggressive patenting should centre on protecting genuine commercial value.

Patent depth balancing with the Need to Disclose Information Publicly

Patent law requires a trade-off between granting inventors a limited monopoly on their invention in exchange for providing the public with complete and full disclosure of the underlying invention.

Having too much strategy (i.e., claim-tailoring, continuation-filing, target-marketing) can cause substantive-things to be placed back into the specification. Some people will attempt to compose vague or overly-abstractive applications with the sole purpose of maintaining flexibility for future claims, and thus, will not actually enable the invention.

The best practice is as follows:

Ensure that your claims are strategically-written, however; you should also ensure that your specification is technically-sound, so others can further develop the invention when the patent expires.

Risk Management and Over-strategizing: Compromising the real innovation in favor of gaming the claims

Sometimes when a company develops a new product, other companies create ways to get around patenting by inventing things that could be possible. Then they will use their devices to be clever to create ways of writing and converting claims that would include what their competitors are selling without actually creating any of those products.

Problems with this approach:

Can create patents resulting in a de minimus technical contribution to the art. Creates a heightened potential for patent invalidation during litigation (see §101, §112, or obvious); Judges/patent office will disregard these tactics as bad – faith and non-substantive.

Ethical Considerations:

You may pursue a strategy in your prosecution, however, your strategy must be set upon a real invention, adding too much strategy at the expense of the invention's substance reduces the value of the patent.

10. Common Misconceptions

“Directed means narrow”

Reality: Directed does not equate to overly narrow. It means concentrating the patent’s claims on the inventive concept, which is in most cases, is the core idea of the invention and not unduly restrictive. 

For example, the PTO and courts inquire whether a claim is “directed to” something deemed ineligible like abstract ideas or natural laws but that examination is not exhaustive. A claim could be directed toward several aspects and not just one myopic aim.

“It's only useful in litigation."

Reality: Directed prosecution is a strategic pre-litigation approach. It is employed in examination by applicants who attempt to shape claims in ways that they do not face rejections and achieve enforceable rights. 

Post-grant, in litigation, there will be questions alleging whether a claim was properly directed to eligible subject matter. This can be used as a challenge under § 101. However, claim prosecution has other uses beyond court battles.

“All prosecution should be focused automatically.” 

Reality: Balance is important in patent prosecution…over balance leads to undesirable outcomes. 

Too broad → examiner defaults to rejection; 

Too narrow → fails to see more useful variants or sidelined consider value-adding opportunities. 

Effective directed prosecution achieves deliberate balance of claim scope with prosecution strategy risk. It protects against exclusionary patent challenges while deftly claiming strategies within patent-eligible subject matter and retains tactical openness.

 

Way Forward

Directed prosecution is a strategic approach to patent prosecution that aligns claim scope with business objectives, market opportunities, and enforcement goals. By leveraging targeted claim drafting, continuations, and Evidence of Use (EoU) analysis, patent owners can strengthen protection, improve licensing potential, and enhance portfolio value. When balanced with sound legal and ethical practices, directed prosecution helps create patents that are both commercially valuable and legally enforceable.