Prosecution Insights
Last updated: October 26, 2026

Carol Ann Chase, USPTO Patent Examiner

Listed by the USPTO as CHASE, CAROL ANN

Tech Center 1600 • Art Units: 1600 1643 1645 1646

This examiner grants 42% of resolved cases

Analysis

Carol Ann Chase is an examiner in Tech Center 1600 and Art Unit 1600. The examiner has a total of 62 resolved cases and an allowance rate of 41.9 percent. The median days to allowance for cases that reach a grant is 1323. These figures describe the prosecution environment for applicants assigned to this examiner. The interview lift is 84.9 percent, which represents the statistical difference in allowance rates for cases with an interview compared to those without one.

Top companies in this examiner's record include Iovance Biotherapeutics Inc., Novartis AG, and Merck Patent GmbH. These applicants are often represented by firms such as GOODWIN PROCTER LLP, JCIPRNET, and MILLEN, WHITE, ZELANO & BRANIGAN, P.C. The 41.9 percent allowance rate and 1323-day median pendency are primary data points available for these firms to assess case outcomes. The 84.9 percent interview lift suggests that interviews correlate with an increased probability of allowance.

With 62 resolved cases, the examiner's profile is based on a specific set of historical outcomes. The allowance rate indicates the frequency of patent grants among those resolved cases. Practitioners can use the data to understand the examiner's historical patterns. Legal teams can consider the interview lift when determining whether to request a meeting with the examiner in Art Unit 1600. This information helps in setting expectations for the duration and outcome of the patent acquisition process.

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

Performance Statistics

41.9%
Allow Rate
-18.1% vs TC avg
100
Total Applications
+84.9%
Interview Lift
1323
Avg Prosecution Days
Based on 62 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
16.4%
§102 Novelty
29.4%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18561506 EGFR TARGETING FC ANTIGEN BINDING FRAGMENT-DRUG CONJUGATES Non-Final OA MERCK PATENT GMBH

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Frequently Asked Questions

What is examiner Carol Ann Chase's allowance rate?

41.9% of resolved applications examined by Carol Ann Chase were allowed (62 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Carol Ann Chase?

This examiner's interview lift is +84.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Carol Ann Chase take to allow a patent?

Applications allowed by Carol Ann Chase took 1,323 days on average from filing to allowance.

Which art unit does examiner Carol Ann Chase work in?

Carol Ann Chase examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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