Claim Drafting Patterns

Claim Drafting Patterns — Claim Drafting Pattern Guide

Strategic composition, terminology selection, and claim scope optimization methodology for patent claims.

Drafting Patterns by Claim Type

Apparatus (Article) Claim Structure

In a [title of invention],
[Component A];
[Component B] connected to said [Component A] and performing [Function 1]; and
[Component C] receiving [data/signal] from said [Component B] and performing [Function 2],
comprising [title of invention].

Method (Process) Claim Structure

A method for [purpose], comprising:
(a) a step of [subject] performing [Action 1];
(b) a step of performing [Action 2] based on the result of step (a); and
(c) a step of performing [Action 3] according to [condition].

Computer Program Claim

A non-transitory computer-readable recording medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
performing [Action 1];
performing [Action 2]; and
performing [Action 3].

Claim Scope Design Strategy

Hierarchical Claim Structure (Claim Tree)

Independent Claim 1 (Apparatus — broadest)
  +-- Dependent Claim 2: Component A elaboration
  +-- Dependent Claim 3: Component B elaboration
  +-- Dependent Claim 4: Connection method limitation
  +-- Dependent Claim 5: Additional Component D inclusion

Independent Claim 6 (Method — broadest)
  +-- Dependent Claim 7: Step subdivision
  +-- Dependent Claim 8: Condition addition
  +-- Dependent Claim 9: Additional step

Independent Claim 10 (Recording medium)

Scope Adjustment Techniques

Terminology Rules

Expressions to Avoid

Antecedent Rules

First appearance: "a [component]" or "[component]"
Re-appearance: "said [component]" or "the [component]" (same term)

Violation example: "sensor" -> "said detector" (name mismatch = description deficiency)

Rejection Response Patterns

Novelty Rejection (Article 29, Paragraph 1)

Response strategy:
1. Identify differentiating elements from prior art
2. Add differentiating elements to independent claim (amendment)
3. Argue technical significance of differences in opinion statement
4. Merge dependent claims to narrow scope (fallback)

Inventive Step Rejection (Article 29, Paragraph 2)

Response strategy:
1. Argue lack of combination motivation: "There is no motivation to combine the prior art references"
2. Argue unexpected effects: "The combination produces synergistic effects"
3. Argue technical prejudice: "A direction a person skilled in the art would not attempt"
4. Commercial success evidence: "Market success demonstrates inventive step"

Claim Self-Check Checklist

• Does the independent claim cover the broadest scope
• Are all term antecedents clear
• Is the transition phrase open-ended ("comprising")
• Do dependent claims progressively narrow the scope
• Is there a 3-type claim set (apparatus + method + recording medium)
• Are all specification embodiments covered by claims
• Do reference numerals match specification and drawings

Notes

• Based on Patent Act and examination guidelines
• Detailed drafting examples: See references/claim-examples.md