I have been working with Effectual Services on patent drawing and prior art projects during the last several months. In the drawing projects, ES delivers high quality work product that corresponds to what I wanted and requires none or only minimal revisions. Also, ES usually notices and corrects minor errors in drawings (e.g., same reference numeral appears twice). In the prior art search projects, ES delivers the results in an easy-to-follow format that helps me draft claims that overcome the prior references. ES’s work product is always produced in a timely manner and, oftentimes, a few days before the deadline.