The chart below provides a new look at the USPTO Allowance rate and is calculated by dividing the number of issued patents in a given month by the number completed cases (where the application either issues as a patent or is abandoned). Those who have been practicing for several years will recognize the Dudas-Drop in the second-half of the last decade and the subsequent Kappos-Climb.
Notes: For readability, I used a 4-month rolling average that smoothed the contours (and also made discontinuous jumps appear more gradual). The report here relates to abandonment and issuance of serialized applications. Quasi-abandonments such as RCE filings are not considered abandonments for this data. Continuations and divisional application filings are included — Thus, the issuance/abandonment outcome of the original application will be counted as well as that of any follow-on serialized application. The data comes from USPTO Historical Files released by the PTO’s Chief Economist Alan Marco.