"In the event the Company is acquired or sold or elects to sell the covered patents or upon certain other corporate events or in the event the Company terminates the agreement for any reason, then Duane Morris shall be entitled to collect accrued costs and a fee equal to three times overall time and expenses accrued in connection with the agreement and a fee of 15% of a good faith estimate of the overall value of the covered patents. The Company has provided Duane Morris a lien and a security interest in the covered patents to secure its obligations under the agreement."
I would think that any company considering buying EDIG would have to satisfy DM's contract or renegotiate it, perhaps keeping them on to continue litigating.