The text must be a nonscript font (e.g. , Arial, Times Roman, or Courier), preferably with a font size of 12.Take a few moments and Fill the Questionnaire and provide us the details so that we can commence the process for drafting of your complete specification. This page provides information on the types of patents and types of patent applications, and the examination process. Drawings must show every feature of the invention specified in the claims. Toll-Free: 844.212.5626. Every claim consists of three parts Preamble, Transitional phrase, and Body. Patent drafting is probably the most critical aspect of the patent application. What information do I need to provide to the patent drafter? How to write a patent application.