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  • U.C.L.A., B.S. Summa cum Laude/Phi Beta Kappa, 1969
  • Cornell University, Ph.D. in physics, 1981
Practice Areas
  • Patent Prosecution
  • Mitchell D. Hirsch, Ph.D.
    Professional Experience

    Mitch is a patent agent and focuses his practice on the preparation of U.S. patent applications and the prosecution of patent applications in the U.S. and other nations. Mitch also contributes to the preparation of patent invalidity opinions.

    Client Work

    Mitch’s clients are most often corporations of various sizes and universities. Mitch’s corporate clients include traditional manufacturing companies and also companies specializing in the generation and licensing of intellectual property. More specifically, Mitch often works closely with a client’s inventors and in-house council or licensing officer to translate their ideas and disclosures into patent applications that best serve their interests. He very much enjoys discussions with inventors, often finding that he “speaks their language”. Mitch has received compliments from inventors and council for his technical and legal knowledge and attention to detail in the patenting process.

    Previous Work

    Before entering patent legal practice, Mitch spent over 20 years in research and development in the semiconductor industry, including major U.S. corporations and mid-sized companies, and the American subsidiary of a Japanese company. In these positions he developed fabrication processes for a wide variety of integrated circuits and imaging devices. He also designed several discrete transistors, discrete integrated circuit elements, and magnetic field sensors.

    Publications, Presentations and Recognitions

    Mitch has published several papers in the areas of semiconductor materials, laser technology, and physical chemistry.

    While employed at a well-established electronics R & D company, Mitch shared the 2001 Achievement Award for his role in the development of a novel semiconductor imaging device.

    Professional Activities

    Mitch is a member of the Philadelphia Intellectual Property Law Association (PIPLA), an organization holding regular presentations on topics in IP law. He is a Patent Agent Charter Member of the American Intellectual Property Law Association (AIPLA), and is a member of two professional societies, the American Physical Society (APS), and the Institute of Electrical and Electronics Engineers (IEEE).

    Bar and Court Admissions

    U.S. Patent and Trademark Office

    Life Beyond the Law

    One of my favorite quotations comes from an ancient Roman playwright, Terentius Afer: “I am human. Nothing human is alien to me”. I am a curiosity-driven former scientist and engineer with special passions for singing, languages, physics, evolutionary biology, the game of baseball, and explaining esoteric scientific and technical ideas in everyday language. The practice of patent law allows me to combine my passions for technology, language, and teaching. When not practicing patent law I sing, occasionally conduct a choir, attempt to learn jazz piano, read, and play baseball catch with my son.