Houston, TX – StoneTurn, a leading global professional services firm, assisted client, Ningde Amperex Technology Limited (“ATL”), a Top 5 worldwide Small Lithium-Ion Battery maker (Counsel: Quinn Emanuel) in obtaining $3.7 million in royalty damages at a recent trial.

Alan Ratliff (CPA/CFF/CGMA/CPVA, MPA, JD), a StoneTurn partner in Houston, Texas, testified on patent infringement reasonable royalty damages on behalf of StoneTurn client ATL in a lawsuit against one of their competitors, Zhuhai COSMX Battery Company (“COSMX”), in Marshall, Texas, in February 2024. The jury returned a verdict in favor of ATL awarding $3,701,108 in running royalty damages through the date of trial on the one patent found infringed and not invalid, the exact amount to which Mr. Ratliff testified.

StoneTurn was retained by Quinn Emanuel on behalf of ATL.  Mr. Ratliff was primarily assisted by StoneTurn colleagues Katie Prichard, Managing Director, and Matt Davis, Manager.

Find the verdict form here.

StoneTurn’s experts regularly work with clients and their counsel to analyze and explain complex concepts, prepare detailed analyses, and develop clear and concise findings, which are presented in reports and through testimony at depositions, trials and before other triers of fact. The firm’s experts bring decades of experience in business disputes, working to address the complex financial, accounting and economic-related issues in legal matters ranging from intellectual property disputes to international arbitration. StoneTurn provides consulting and expert witness services for disputes in federal, state, administrative and private tribunal proceedings.

Read more about the case through Bloomberg Law.

Meet Alan

Alan Ratliff

Alan Ratliff

Alan Ratliff has more than 30 years of experience in client service and was StoneTurn’s first lateral partner, opening the firm’s Houston office in 2005. Alan serves as the firm’s […]