I have 25 years of experience, and specialize in the field of polymer engineering with specific knowledge in the areas of transport in polymers, polymer analysis and polymer identification. I have published on such topics as drug delivery, polymeric sensors and biomedical polymers. I have testified 6 times on topics such as polymer composition, polymer structure and diffusion of molecules in polymers. I have been fortunate in that my side has won or settled favorably in every case for which I have been deposed or called as a witness in court.