Ruby J. Natnithithadha is a senior attorney in the firm’s Mechanical Patent Prosecution, Post-Grant Patent and Industrial Designs practice groups. Ms. Natnithithadha’s technical expertise encompasses a variety of technology areas in the electro-mechanical and mechanical fields, with a focus on medical device technologies, including blood glucose meters, implantable electrical stimulators, and biopsy devices. She also has extensive experience with tire treads and medical imaging devices.

Prior to joining the firm Ms. Natnithithadha worked for another intellectual property firm where she gained extensive experience in handling procurement matters before the U.S. Patent and Trademark Office, including patent application drafting and prosecution, conducting examiner interviews, filing appeals to the Board of Patent Appeals, and preparing and prosecuting foreign patent applications according to the Patent Cooperation Treaty. She developed comprehensive and sophisticated patent strategies for start-up and established companies. She also developed and managed patent portfolios and advised clients on various products and potential design-arounds. She prepared validity, infringement, patentability, and clearance opinions and focused on due-diligence investigations.

Ms. Natnithithadha also served as a Patent Examiner with the U.S. Patent and Trademark Office where she prosecuted patents in the field of ultrasonic medical imaging diagnosis and devices. Her responsibilities included research and the application of law to science and technology and responding to applicant’s arguments, and creating a complete record for the public and anticipated litigation.

While completing her degree in biomedical engineering, Ms. Natnithithadha was a researcher at the National Institute of Neurological Disorders & Stroke (NINDS), where she studied brain mapping using MRI and PET scans to reconstruct and analyze data for localizing cognitive functions. Prior to that, she studied the effects of calcium on the structure of DNA using viscometry and osmometry at the National Institute of Child Health & Development (NICHD).


  • American University, Washington College of Law (J.D.)
  • Case Western Reserve University (B.S., magna cum laude)
    • Biomedical Engineering


  • Virginia
  • District of Columbia
  • Registered to practice before the U.S. Patent and Trademark Office


Professional Affiliations

  • American Bar Association
  • Virginia Bar Association
  • South Asian Bar Association
  • American Intellectual Property Law Association (AIPLA)


  • Senior Biomedical Engineering Research Award, Case Western Reserve University (2000)


  • Hindi
  • Spanish