On February 14, 2017, the USPTO’s Patent Quality Chat webinar series continued with “Understanding the ADS (Application Data Sheet): Little Things Make a Big Difference.” A link to the presentation materials and the 2017 quality chat series can be found here. For this chat, the USPTO’s Janice Tippett, who is a Management and Program Analyst in the Office of Patent Application Processing (OPAP), highlighted the various issues applicants/stakeholders are having with filing Application Data Sheets (ADSs) and corrected ADSs.