Prosecution Insights
Last updated: October 02, 2026

Examiner: CHAO, ALLEN

Tech Center 1600 • Art Units: 1622 1624 1629 1656

This examiner grants 56% of resolved cases

Analysis

Allen Chao works in Tech Center 1600 and Art Unit 1622. He has 9 resolved cases with an allowance rate of 55.6 percent. The median days to allowance is 1104.

The interview lift is 0.0 percent, based on the 9 cases he has handled. This suggests that interviews have not changed the outcome in this limited data set. Practitioners should focus on written arguments to navigate the 55.6 percent allowance rate.

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

Performance Statistics

55.6%
Allow Rate
-4.4% vs TC avg
52
Total Applications
+0.0%
Interview Lift
1104
Avg Prosecution Days
Based on 9 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
18.2%
§102 Novelty
45.5%
§103 Obviousness
26.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18562666 METHOD FOR CRYSTALLIZATION OF AROMATIC AMINO ACIDS, ENABLING SUSTAINABLE CYCLE OF AMMONIA Final Rejection CJ CheilJedang Corporation
18449793 TREATMENT OF BREAST CANCER USING COMBINATION THERAPIES COMPRISING GDC-9545 AND ABEMACICLIB OR RIBOCICLIB Non-Final OA Genentech, Inc.
18293683 INHIBITORS OF HYPOXIA-INDUCIBLE FACTORS Non-Final OA The Johns Hopkins University
18709395 Prodrugs of Neurosteroid Analogs and Uses Thereof Non-Final OA Emory University
18685544 PYRAZINE COMPOUNDS FOR THE CONTROL OF INVERTEBRATE PESTS Non-Final OA BASF SE
18606577 ANTIMICROBIAL COMPOSITIONS WITH ENHANCED EFFICACY Final Rejection ECOLAB USA INC.
18615156 THERAPEUTIC LIQUID COMPOSITIONS Final Rejection Kenvue Brands LLC
18602132 METHODS FOR TREATING CYTOKINE STORM ASSOCIATED WITH ACINETOBACTER BAUMANNII INFECTIONS Final Rejection City University of Hong Kong
18602519 PYRIDAZINE COMPOUNDS, THEIR PREPARATION, AND THEIR THERAPEUTIC USES Non-Final OA SANOFI
18685551 LOU064 FOR TREATING MULTIPLE SCLEROSIS Final Rejection NOVARTIS AG
18844280 INHIBITORS OF FLI1 AND ERG Non-Final OA UNIVERSITY OF VIRGINIA PATENT FOUNDATION
18219447 PROCESS FOR PREPARING PHOSPHONATE ESTERS Final Rejection ENTEGRIS, INC.
18696946 Heterocyclic Compounds and Methods of Use Non-Final OA AMGEN INC.
18293768 PROCESS FOR PREPARING A OXACYLOHEXANE OR OXACYLOPENTANE DERIVATIVE Non-Final OA Firmenich SA
18293766 PROCESS FOR PREPARING A OXACYLOHEXANE OR OXACYLOPENTANE DERIVATIVE Non-Final OA Firmenich SA
18602434 Bicyclic Ureas As Kinase Inhibitors Non-Final OA Incyte Corporation
18584553 Heterocyclic Compounds As Kinase Inhibitors Non-Final OA Incyte Corporation
18512625 Heteroaryl Fluoroalkenes As DGK Inhibitors Non-Final OA Incyte Corporation
18512514 Heteroaryl Fluoroalkenes As DGK Inhibitors Non-Final OA Incyte Corporation
18844216 PROCESSES FOR SYNTHESIS OF WITHANOLIDES AND WITHAFERINS AND ANALOGS THEREOF Non-Final OA H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.
18729657 UBIQUITIN-SPECIFIC-PROCESSING PROTEASE 1 (USP1) INHIBITORS FOR THE TREATMENT OF SOLID TUMORS Non-Final OA KSQ Therapeutics, Inc.
18263434 ORAL PREPARATION CONTAINING JAK INHIBITOR OR SALT THEREOF OR CRYSTAL FORM THEREOF, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF Final Rejection ZHUHAI UNITED LABORATORIES CO., LTD.
18283487 SELECTIVE ANGIOTENSIN II RECEPTOR LIGANDS Final Rejection Vicore Pharma AB

Facing This Examiner?

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

Build Your Strategy

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