Submit a Demand Letter

Date the letter was sent *

Please enter each patent number or international application number mentioned in the demand letter you received. If multiple patents are listed, separate the numbers by a space. United States utility patents will have a seven-digit number (e.g. 7986426); United States design patents numbers begin with the letter “D” followed by six digits (e.g. D668286); Patent Cooperation Treaty application numbers begin with "WO".

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Please enter the text of the notice you received. Alternatively, you can upload a PDF of the demand letter below.

Please remove personally identifiable information, such as your name, address, and product information, from the demand letter. You can also upload the PDF in its original form, and we will remove such information for you. The original demand letter will be kept private.
Files must be less than 512 MB.
Allowed file types: pdf.

Individual names and fields marked as private below will also be redacted.

This is the entity that claims to own the patent(s) or claims to have a right to license the patent(s). Note that this entity may not be the sender of the letter (for example, if the letter was sent by a law firm on behalf of the patent owner).

Sender business address
Recipient postal address
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