Letters Patent: a type of legal instrument issued by a monarch or government that, in the modern context, grants exclusive rights in an invention to a person or to some entity such as a corporation.
  Welcome to the Letters Patent website which provides information about the Patent Law Office of D. R. Haszko. We work with many different types of entrepreneurs to provide patent protection in the United States and Internationally.  
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Letters Patent is a specialized legal practice limited to patent law at the United States Patent & Trademark Office (USPTO), Canadian Intellectual Property Office (CIPO), and the World Intellectual Property Organization (WIPO).