David A. Rockstraw, Ph. D., P. E.

Robert Davis Distinguished Professor of Chemical Engineering

Chemical Process, Phenomena, & Design Expert Witness


“I learned more about chemical processing from you in two hours than I learned from a room of engineers over two days.”

– Ashley Vinson Crawford
Partner, Akin Gump


“Even though it is indeed rare for an intellectual property matter to close in summary judgment, I am not surprised that you prevailed! If anyone could pull off such a feat, it is you.”

– Deborah Peacock
Peacock Myers, P.C.


“You’re a great expert!” – referring to state that the Court’s Order entered on October 23, 2014 was unsealed and thereby granted summary judgment of non-infringement and invalidity of all asserted patents to all Defendants.

– Marc Al
Partner, Stoel Rives LLP


Your work was instrumental in building out the theory of the case and bringing some of the parties to the negotitating table.

– Steven M. Correa
Senior Attorney
McDowell Hetherington LLP



You definitely had an influence on the settlement.  It was clear that (1) the other side’s experts could not measure up to you, (2) they would NOT be able to land any blows on you during cross examination, and (3) your experimentation and analyses were impeccable.

– Bruce Rose
Partner, Alston & Bird LLP