A friend referred Allen, Dyer, Doppelt + Gilchrist, PA after I had spent 2.5 years and alot of money with another patent attorney. I could not have been happier! They got my patent approved on the first attempt for less money than the other attorney wanted for his 3rd resubmittal. Michael worked on my case and was extremely knowledgeable, professional, and friendly. After all the frustrations with my first attorney these guys were a God sent. Thank you Michael!