ClaimMaster is a software tool for patent proofreading - it automates error-checking of patent claims, patent specifications, and even drawings. ClaimMaster also streamlines numerous patent prosecution and analysis tasks. Conveniently, our software is fully integrated with Microsoft Word.


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What ClaimMaster can do for you:

  • Identify errors in patent claims & patent specification
  • Find missing antecedents
  • Find claim terms without support in patent specification
  • Check element numbers in specification and drawings
  • Find undefined acronyms
  • Generate claim summaries
  • Create populated IDS forms with data from the PTO/EPO
  • Batch download PDFs/text of U.S. or foreign patents, U.S. file wrappers, assignment and maintenance data
  • Chart patent family trees
  • Manipulate amendments and indicators
  • Batch-review multiple documents
  • View & print claim trees
  • Chart and visually compare claims 
  • Renumber patent claims
  • Bold/italicise reference numbers in specification
  • Calculate excess claim fees
  • and much more ...

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User Reviews:

"ClaimMaster has quickly become invaluable to my drafting and prosecution practice. Its ability to check for antecedent support and reference number consistency has caught dozens of small errors that would have gone unnoticed were it not for this tool. I don't file anything without running it through ClaimMaster first and for this reason the quality and efficiency of my work has improved, not to mention providing a little more peace of mind!"
- Frank Gerratana, Patent Attorney, Fish & Richardson P.C.

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