patent-claims-analyzer

Patent Claims Analyzer Skill

Automated analysis of patent claims for USPTO compliance with 35 USC 112(b) requirements.

When to Use

Invoke this skill when users ask to:

• Review patent claims for definiteness
• Check antecedent basis in claims
• Analyze claim structure
• Find claim drafting issues
• Validate claims before filing
• Fix USPTO office action issues related to claims

What This Skill Does

Performs comprehensive automated analysis:

1. Antecedent Basis Checking:

   • Finds terms used without prior introduction
   • Detects missing "a/an" before first use
   • Identifies improper "said/the" before first use
   • Tracks term references across claims

2. Definiteness Analysis (35 USC 112(b)):

   • Identifies subjective/indefinite terms
   • Detects relative terms without reference
   • Finds ambiguous claim language
   • Checks for clear claim boundaries

3. Claim Structure Validation:

   • Parses independent vs. dependent claims
   • Validates claim dependencies
   • Checks claim numbering
   • Identifies claim type (method, system, etc.)

4. Issue Categorization:

   • Critical: Must fix before filing
   • Important: May cause rejection
   • Minor: Best practice improvements

Required Data

This skill uses the automated claims analyzer from: Location: ${CLAUDE_PLUGIN_ROOT}/python\claims_analyzer.py

How to Use

When this skill is invoked:

1. Load the claims analyzer:

   import sys
   sys.path.insert(0, os.path.join(os.environ.get('CLAUDE_PLUGIN_ROOT', '.'), 'python'))
   from python.claims_analyzer import ClaimsAnalyzer
   
   analyzer = ClaimsAnalyzer()
   

2. Analyze claims:

   claims_text = """
   1. A system comprising:
       a processor;
       a memory; and
       said processor configured to...
   """
   
   results = analyzer.analyze_claims(claims_text)
   

3. Present analysis:

   • Show compliance score (0-100)
   • List issues by severity (critical, important, minor)
   • Provide MPEP citations for each issue
   • Suggest specific fixes