Prosecution Insights
Last updated: October 02, 2026

Examiner: GAO, ASHLEY HARTMAN

Tech Center 1700 • Art Units: 1644 1646 1674 1678 1783

This examiner grants 57% of resolved cases

Analysis

Ashley Hartman Gao serves in Tech Center 1700 and Art Unit 1644. She has handled 90 resolved cases, resulting in an allowance rate of 56.7 percent. This 56.7 percent allowance rate indicates the frequency of applications reaching a final disposition under her review that are granted. With 90 resolved cases, the data provides a clear baseline for her examination style.

The interview lift for Gao is 38.2 percent. This 38.2 percent lift is very high, suggesting that interviews are an extremely effective strategy for increasing the likelihood of allowance compared to cases without an interview. The 38.2 percent lift indicates that cases with an interview are significantly more likely to be granted than those without. Practitioners should prioritize scheduling interviews to address rejections and advance prosecution in Art Unit 1644.

The median time to allowance is 1238 days. This 1238 day duration represents the typical timeframe from filing to patent issuance. Applicants should factor this 1238 day median into their long-term planning and expectations for pendency. The combination of the 56.7 percent allowance rate and this median provides a comprehensive view of the prosecution environment for this examiner.

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

Performance Statistics

56.7%
Allow Rate
-8.3% vs TC avg
148
Total Applications
+38.2%
Interview Lift
1238
Avg Prosecution Days
Based on 90 resolved cases, 2023–2026

Rejection Statute Breakdown

6.4%
§101 Eligibility
7.7%
§102 Novelty
36.9%
§103 Obviousness
31.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
16961026 Fusion Protein Extensions Final Rejection NantBio, Inc.
18104825 T CELL-BASED METHODS FOR PREDICTING POLYPEPTIDE IMMUNOGENICITY Non-Final OA GENENTECH, INC.
17168621 USE OF TRYPTOPHAN DERIVATIVES AND L-METHIONINE FOR PROTEIN FORMULATION Final Rejection Genentech, Inc.
18245868 IDENTIFICATION OF SARS-COV-2 EPITOPES DISCRIMINATING COVID-19 INFECTION FROM CONTROL AND METHODS OF USE Non-Final OA WISCONSIN ALUMNI RESEARCH FOUNDATION
18027292 Devices and Methods for Evaluating the Viability of Embryos Final Rejection The Regents of the University of California
17776131 SYSTEMS AND METHODS FOR RAPID, SENSITIVE MULTIPLEX IMMUNOASSAYS Final Rejection The Regents of the University of Michigan
17905580 SUBCUTANEOUS ABSORPTION AND BIOAVAILABILITY OF ANTIBODIES Final Rejection Eli Lilly and Company
18265661 FEATURES FOR DETERMINING DUCTAL CARCINOMA IN SITU RECURRENCE AND PROGRESSION Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18560223 CONTROL SLIDE GLASS FOR PATHOLOGICAL EXAMINATION AND METHOD FOR MANUFACTURING SAME Final Rejection Hitachi High-Tech Corporation
17924748 DETECTION METHOD OF TARGET MOLECULE IN SPECIMEN AND DETECTION KIT FOR TARGET MOLECULE Final Rejection Yokogawa Electric Corporation
18283434 METHODS OF DETERMINING POTENCY OF A THERAPEUTIC CELL COMPOSITION Non-Final OA Juno Therapeutics, Inc.
17641473 ASSAY FOR IMMUNE CELL RECOVERY Final Rejection RESEARCH INSTITUTE AT NATIONWIDE CHILDREN'S HOSPITAL
16980128 IMMUNO-EXOSOMES AND METHODS OF USE THEREOF Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18180991 SYSTEMS AND METHODS FOR PREDICTING GRAFT DYSFUNCTION WITH EXOSOME PROTEINS Non-Final OA THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
18808311 BISPECIFIC ANTI-VEGF AND ANTI-TRKB BINDING MOLECULES FOR THE TREATMENT OF EYE DISEASES Non-Final OA Boehringer Ingelheim International GmbH
17199195 CSF-1R ANTIBODY FORMULATION Final Rejection Hoffmann-La Roche Inc.
18435746 TIGIT AND CD112R BLOCKADE Non-Final OA AMGEN INC.
17289970 METHOD FOR PRODUCING PLURIPOTENT STEM CELL HAVING RELEASED DIFFERENTIATION RESISTANCE TO MESENDODERM Final Rejection Kyoto University
18065736 MEASURING FREQUENCY OF PATHOGEN-SPECIFIC T CELLS IN PERIPHERAL BLOOD Final Rejection Thomas Jefferson University
18625703 NOVEL PD-1 BINDING DOMAINS Non-Final OA INCYTE CORPORATION
18625756 NOVEL PD-1 BINDING DOMAINS Non-Final OA INCYTE CORPORATION
17819810 TUMOR SUPPRESSION BY MODULATION OF NON-CANONICAL AUTOPHAGY (LAP) IN MYELOID CELLS Final Rejection St. Jude Children's Research Hospital
17128599 BISPECIFIC SIGNALING AGENTS AND USES THEREOF Non-Final OA Universiteit Gent
17274564 METHODS FOR DECREASING INFLUENZA-INDUCED LETHALITY USING GASTRIN-RELEASING PEPTIDE (GRP) INHIBITORS OR GASTRIN-RELEASING PEPTIDE RECEPTOR (GRPR) ANTAGONISTS Final Rejection The United States of America, as represented by the Secretary, Department of Health and Human Servic
18369273 BIOLOGICAL CONJUGATES HAVING AN PHOTOGENERATED ACIDIC OR BASIC RELEASABLE DETECTION MOIETY ON TOP OF BIOLOGICAL TISSUES Non-Final OA Miltenyi Biotec B.V. & Co. KG
18024603 CONJUGATES HAVING AN ENZYMMATICALLY RELEASABLE DETECTION MOIETY AND A BARCODE MOIETY Non-Final OA Miltenyi Biotec B.V. & Co. KG

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