Examiner: ROSENAU, DEREK JOHN

Analysis

Derek John Rosenau works in Art Unit 2691 of Tech Center 3700. The examiner has a total of 1264 resolved cases and an allowance rate of 77.7 percent. This high volume of cases and relatively high allowance rate suggest a consistent and predictable examination style that is generally favorable to applicants. The 1264 resolved cases represent a vast amount of experience, indicating that the examiner is well-versed in the technical and legal aspects of the applications they review.

The interview lift is 8.0 percent, indicating a slight benefit to conducting interviews. While not as dramatic as in other units, direct communication can still be a useful tool for resolving specific issues and moving toward an allowance, as shown by the 8.0 percent increase in success. This suggests that the examiner is open to dialogue and may use interviews to clarify minor points of contention. Practitioners should consider an interview as a helpful supplement to their written responses.

The median days to allowance is 1070. This duration provides a clear expectation for the length of the prosecution cycle, helping applicants manage their patent portfolios and strategic planning. The 1070-day median is a reliable benchmark for estimating when a patent might be granted. This information is crucial for businesses that need to coordinate their intellectual property protection with product development cycles and market entry strategies.