Proof read patents in [[hours]] seconds

Fast, reliable and intuitive AI powered post-issue patent proof reading.

Love proof reads

The only app you will need for patent proof reading

No scampering to download documents. No copy pasting errors. No misses or inconsistencies. No fatigue. No reputational risk.

30x Productivity Boost
Your proof read times will drop from 2+ painstaking hours to atmost 5 minutes.
Reliable
Miss nothing. Tiniest textual difference that could have material impact are captured for your review.
Intuitive
Follows patent proof reading conventions. Professionals will be up & running within seconds without any prior training.
Secure
256 bit SSL encryption. Signups limited to official email domains only. Real time access control.

Simple pricing

Pay per use

No limits on number of team members you want to invite.

[[$30]] $15 / proof
  • All features. No limitations.
  • Start with $50 worth of trial credits
  • Refund unused purchased credits anytime
  • Special β (beta) price in exchange for early feedback

Frequently asked questions

What is post-issue patent proof reading?
Post-issue proofreading is the review of a granted U.S. patent, after its issue/grant date, to identify clerical, typographical, or publication errors in the issued patent so they can be corrected through a Certificate of Correction.
Why does post-issue proof reading matter?
Errors in an issued patent can undermine enforceability and value, and early correction is the last low-cost opportunity to fix them before the patent is relied on in licensing or litigation.
How does Erlich help?
Erlich compares issued patent text with filed documents in seconds, highlights meaningful differences, helps users quickly classify material impact, and generates a ready-to-file Certificate of Correction—reducing hours of error-prone work to a fast, reliable workflow.
How does Erlich work?
  1. Enter the patent application or the granted patent number.
  2. Erlich fetches all relevant docs while you sip your coffee.
  3. Erlich then shows you a list of all differences asking you to review and categorize either as an Error or Observation or something innocuous.
  4. If required, export the Certification of Correction which includes Errors by default.
Total time taken: 5 minutes tops. In most cases you will be done within 2 minutes.
Can I try before I buy?
Absolutely. Your new account comes with trial credits so the first few proofs are on us.
Are separate licenses required if I invite my colleagues to Erlich?
No. In fact there are no seat or user based licenses at all. You only pay for the number of proof reads you do. Invite all your colleagues who do proof reads.