Marlene M. Darfler

OncoPlex Diagnostics, Inc. operates a cancer diagnostics laboratory. It provides information that helps physicians choose targeted therapies and avoid therapies. The company is headquartered in Rockville, MD.

Invitrogen develops, manufactures and markets research tools in kit form and provides other research products and services to corporate, academic and government entities. These research kits simplify and improve gene cloning, gene expression and gene analysis techniques.