Prosecution Insights
Last updated: October 25, 2026

Daniel R Carcanague, USPTO Patent Examiner

Listed by the USPTO as CARCANAGUE, DANIEL R

Tech Center 1600 • Art Units: 1621 1625

This examiner grants 81% of resolved cases

Analysis

Daniel R. Carcanague has overseen 930 resolved cases in Art Unit 1621, maintaining an allowance rate of 80.8 percent. The median pendency to reach an allowance is 616 days within Tech Center 1600. An interview lift of 24.5 percent is also recorded for these cases.

The 24.5 percent interview lift indicates that verbal advocacy is a productive tool for further improving the 80.8 percent allowance probability. Practitioners should consider this lift alongside the efficient 616-day median wait for an allowance. The 930 resolved cases provide a substantial data set for understanding prosecution in this unit.

Xenon Pharmaceuticals Inc. and Shionogi Pharma Co. Ltd. are the top companies appearing before this examiner. Firms such as COOLEY LLP and WENDEROTH, LIND & PONACK, L.L.P. have experience with these cases. The 80.8 percent allowance rate and 616-day median timeline define the environment for these 930 resolved cases.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

80.8%
Allow Rate
+20.8% vs TC avg
931
Total Applications
+24.5%
Interview Lift
616
Avg Prosecution Days
Based on 930 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
18.4%
§102 Novelty
24.9%
§103 Obviousness
34.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18746981 PYRIDINE DERIVATIVES AND THEIR USE AS SODIUM CHANNEL ACTIVATORS Non-Final OA Xenon Pharmaceuticals Inc.
18196255 NOVEL ACRIDINIUM SALT AND METHOD FOR PRODUCING SAME Non-Final OA SHIONOGI PHARMA CO., LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Daniel R Carcanague's allowance rate?

80.8% of resolved applications examined by Daniel R Carcanague were allowed (930 resolved cases), compared with 46.0% across Art Unit 1621 over the last five years.

Does an interview help with examiner Daniel R Carcanague?

This examiner's interview lift is +24.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel R Carcanague take to allow a patent?

Applications allowed by Daniel R Carcanague took 616 days on average from filing to allowance.

Which art unit does examiner Daniel R Carcanague work in?

Daniel R Carcanague examines applications in Art Unit 1621 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month