Politics & Policy

WASHINGTON - A series of resignations has left virtually all of the top positions at the U.S. Patent and Trademark Office (PTO) empty, occupied on an interim basis by officials who may lack the stature and stability required for Senate confirmation.

The leadership void comes at a time when the PTO is completing important guidance on its interpretation of judicial rulings that will establish parameters for the scope of claims allowed in biotech patents, and is struggling to manage rapid growth in the number and complexity of applications.