Prosecution Insights
Last updated: October 26, 2026

Amber Kathleen Faust, USPTO Patent Examiner

Listed by the USPTO as FAUST, AMBER KATHLEEN

Tech Center 1600 • Art Units: 1643 1674

This examiner grants 61% of resolved cases

Analysis

FAUST, AMBER KATHLEEN is a USPTO patent examiner in Tech Center 1600 and Art Unit 1643. Across 72 resolved cases, the allowance rate is 61.1%, the interview lift is 53.6%, and median time to allowance is 1355 days.

The Regents of the University of California, Sinomab Bioscience Limited, and Janssen Pharmaceuticals Inc. are the leading companies represented. COOLEY LLP, DORITY & MANNING, P.A., and STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C. are the leading firms. The interview figure is a prominent feature of the profile, supporting early examiner engagement where technical or claim-scope issues can be clarified before prolonged written prosecution.

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

Performance Statistics

61.1%
Allow Rate
+1.1% vs TC avg
124
Total Applications
+53.6%
Interview Lift
1355
Avg Prosecution Days
Based on 72 resolved cases, 2023–2026

Rejection Statute Breakdown

3.9%
§101 Eligibility
18.3%
§102 Novelty
32.9%
§103 Obviousness
25.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17612279 IDENTIFICATION OF RECURRENT MUTATED NEOPEPTIDES Non-Final OA Yeda Research and Development Co. Ltd.
18264604 CHIMERIC ANTIGEN RECEPTOR WITH ENDOGENOUS PROTEIN MOLECULE REPLACING SINGLE DOMAIN ANTIBODY Final Rejection ZHEJIANG UNIVERSITY
18249314 SUSTAINED ANTIBODY AND IMMUNOTHERAPEUTIC DELIVERY TO CERVICAL LYMPH NODES Non-Final OA The Johns Hopkins University
18038101 ENGINEERED T CELLS FOR EXPRESSION OF CHIMERIC ANITGEN RECEPTORS Final Rejection The Regents of the University of California
18138679 TARGETING STROMA-CANCER INTERACTIONS IN CANCER Final Rejection The Regents of the University of California
17310279 TARGETED DELIVERY OF IFN GAMMA USING ANTIBODY FUSION PROTEINS Final Rejection The Regents of the University of California

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Frequently Asked Questions

What is examiner Amber Kathleen Faust's allowance rate?

61.1% of resolved applications examined by Amber Kathleen Faust were allowed (72 resolved cases), compared with 41.5% across Art Unit 1643 over the last five years.

Does an interview help with examiner Amber Kathleen Faust?

This examiner's interview lift is +53.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Amber Kathleen Faust take to allow a patent?

Applications allowed by Amber Kathleen Faust took 1,355 days on average from filing to allowance.

Which art unit does examiner Amber Kathleen Faust work in?

Amber Kathleen Faust examines applications in Art Unit 1643 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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