Signify and Keystone Technologies Resolve Lawsuit
The legal fight between Signify Holding B.V. and Keystone Technologies, LLC is officially over. On 25 April 2025, both companies filed a Stipulation of Dismissal with Prejudice in the U.S. District Court for the Eastern District of Pennsylvania, ending the case.
Filed under Rule 41(a)(1)(A)(ii) of the Federal Rules of Civil Procedure, the dismissal permanently ends the lawsuit. Neither side can refile the same claims. Each party will cover its own legal costs as part of the agreement.
The case, listed as Civil Action No. 2:24-cv-06761-CFK, attracted significant attention. While the settlement details remain confidential, the joint dismissal indicates that the parties reached a private agreement. We believe Keystone may now participate in the Signify ENABLED licensing program, although Signify has not yet listed Keystone as a licensee. EdisonReport contacted Keystone for comment but did not receive a response.
On 19 MAR we wrote:
Recognizing the complexity of finalizing the agreement, the court issued an Amended Order on 27 February 2025. This order paused all deadlines and set the second Rule 16 conference for March 21. Now, Signify and Keystone are requesting a brief extension to complete the final negotiations.
There were major hints of a settlement and you can read our coverage here. John S. Stapleton of Stapleton Segal Cochran LLC led the legal team for Signify, with support from Alston & Bird LLP. Keystone Technologies worked with attorneys from Duane Morris LLP.
This has been an expensive legal battle for both sides.
Go Deeper: Signify and Keystone to Hold Settlement Discussions
Signify Sues Keystone Technologies
Read the entire dismissal document here