A party may amend its Final Infringement Contentions; Final Non-infringement, Unenforceability and Invalidity Contentions; or Final Contentions in Response to any Unenforceability and Invalidity Contentions only by order of the Court upon a showing of good cause and absence of unfair prejudice to opposing parties, made promptly upon discovery of the basis for the amendment. An example of a circumstance that may support a finding of good cause, absent undue prejudice to the non-moving party, includes a claim construction by the Court different from that proposed by the party seeking amendment. A motion to amend final contentions due to a claim construction ruling shall be filed, with proposed amendment(s), within fourteen (14) days of the entry of such ruling.

                                                                                                                                                                                               Amended December 19, 2019                    

The duty to supplement discovery responses does not excuse the need to obtain leave of court to amend contentions.