Missouri Revised Statutes Title XXVI. Trade and Commerce § 416.652. Demand letters, no bad faith assertions of patent infringement--factors court may consider

(1) The demand letter does not contain the following information:

(2) The demand letter lacks the information described in subdivision (1) of this subsection, the target requests the information, and the person fails to provide the information within a reasonable period of time;

(3) The demand letter demands payment of a license fee or response within an unreasonably short period of time;

(4) The person offers to license the patent for an amount that is not based on a reasonable estimate of the value of the license;

(5) The person, company, or any of its subsidiaries or affiliates has previously presented a demand letter claiming or asserting patent infringement of the same patent under substantially the same circumstances, and a court has entered a final judgment that the demand letter presented a bad faith assertion of patent infringement;

(6) The person attempted to enforce the claim of patent infringement in litigation, and a court found the claim to be brought in bad faith; and

(7) Any other factor the court finds relevant.

(1) The demand letter contains the information described in subdivision (1) of subsection 2 of this section;

(2) If the demand letter lacks the information described in subdivision (1) of subsection 2 of this section and the target requests the information, the person provides the information within a reasonable period of time;

(3) The person engages in a good faith effort to establish that the target has infringed the patent and to negotiate an appropriate remedy;

(4) The person makes a substantial investment in the use of the patent or in the production or sale of a product or item covered by the patent;

(5) The person is:

(6) The person has:

(7) Any other factor the court finds relevant.