validate_patent_number

Validate a patent number format and normalize it to the standard USPTO format.

Parameters

Example Request

{
  "patent_number": "US7654321B2"
}

Example Response (Valid)

{
  "valid": true,
  "normalized": "7654321",
  "original": "US7654321B2"
}

Example Response (Invalid)

{
  "valid": false,
  "error": "Invalid patent number format",
  "original": "invalid-format"
}

Normalization Rules

Validation Rules

A valid patent number must:

• Start with optional "US" prefix
• Contain a valid type prefix (D, RE, PP) or just digits
• Have a numeric portion (5-8 digits for utility patents)
• Optional kind code suffix (A1, B1, B2, etc.) is stripped

Use Cases

• Clean up user-entered patent numbers
• Validate patent numbers before querying
• Standardize formats in bulk data processing

See Also

• get_patent
• Patent Data