Patent Claim Language May Imply a Required Order of Steps

Why It Matters

The ruling signals that courts will read claim language for logical and grammatical dependencies, directly affecting claim scope and infringement risk. Practitioners must adjust drafting strategies to avoid unintentionally narrowing patents.

Key Takeaways

• CAFC enforces order when grammar implies dependency
• “Requested” descriptor creates logical sequence requirement
• Implicit ordering narrows claim breadth unintentionally
• Drafting should test step reorderability for clarity
• Avoid adjectives that signal prior steps

Pulse Analysis

Method claim construction traditionally assumes that steps can be performed in any order unless the patent expressly dictates a sequence. Recent Federal Circuit precedent, however, shows a shift toward recognizing both explicit and implicit ordering based on the claim’s linguistic structure. Earlier cases such as Mformation Technologies and Interactive Gifts Express laid the groundwork by highlighting that terms like “processing” or “creating” can signal a required chronology, but the Sound View decision deepens that analysis by focusing on grammatical antecedents and logical status indicators.

In Sound View Innovations v. Hulu, the court dissected claim 16’s phrasing, noting that the term “requested SM object” relies on a prior “request” to make sense. The past participle “requested” functions as a status marker, indicating that the request must have occurred before the object can be described as requested. By tying the second limitation to the first through both grammar (antecedent reference) and logic (completed action), the Federal Circuit concluded that the steps were implicitly ordered. This nuanced reading means that infringement analyses now must consider not only the literal steps but also the semantic relationships that bind them.

For patent practitioners, the practical takeaway is clear: avoid language that creates hidden dependencies. Draft claims so that each step remains meaningful if reordered, eliminate adjectives or modifiers that tie later steps to earlier actions, and explicitly state when order is irrelevant. By proactively testing claim language for implicit ordering, inventors can safeguard broader protection and reduce the risk of unexpected infringement defenses. This strategic drafting approach aligns with the evolving jurisprudence and helps maintain robust, enforceable patent portfolios.