Prosecution Insights
Last updated: October 02, 2026

Examiner: ZHU, JIANJIAN

Tech Center 1600 • Art Units: 1631 1632 1635 1699

This examiner grants 59% of resolved cases

Analysis

Jianjian Zhu is in Tech Center 1600 and Art Unit 1631, with 85 resolved cases. The allowance rate is 58.8 percent. This 58.8 percent rate provides a baseline for understanding the examiner's tendencies in this art unit. Although the 85 cases represent a smaller dataset, they offer a clear indication of the examiner's approach to patent applications in Tech Center 1600.

The interview lift is remarkably high at 82.4 percent. This 82.4 percent lift suggests that interviews are an extremely powerful tool for moving cases toward allowance with this examiner. The median days to allowance is 1348 days. Given the baseline allowance rate, the lift is a critical metric for practitioners. The 1348 days median timeline can be navigated more effectively by prioritizing direct communication. These figures highlight the significant impact that oral advocacy can have on the outcome of the cases typically reviewed in Art Unit 1631.

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

Performance Statistics

58.8%
Allow Rate
-1.2% vs TC avg
160
Total Applications
+82.4%
Interview Lift
1348
Avg Prosecution Days
Based on 85 resolved cases, 2023–2026

Rejection Statute Breakdown

2.8%
§101 Eligibility
12.7%
§102 Novelty
38.8%
§103 Obviousness
24.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18947127 CELL CULTURE MEMBRANE AND ORGAN IMITATION STRUCTURE Non-Final OA TOYODA GOSEI CO., LTD.
18026474 CELL SUPPORT AND METHOD OF PRODUCING SAME, CELL CULTURE METHOD AND CELL STRUCTURE Final Rejection Konica Minolta, Inc.
18978181 FOAMY VIRUSES AND METHODS OF USE Non-Final OA Mayo Foundation for Medical Education and Research
17495597 MULTICELL CONJUGATES FOR ACTIVATING ANTIGEN-SPECIFIC T CELL RESPONSES Final Rejection Wisconsin Alumni Research Foundation
18416749 METHODS FOR SCREENING GENETIC PERTURBATIONS Final Rejection The Regents of the University of California
17549028 PHYSIOLOGIC GROWTH OF CULTURED INTESTINAL TISSUE Non-Final OA The Regents of the University of Michigan
18696014 TREATMENT OF POLYCYTHEMIA VERA VIA CRISPR/AAV6 GENOME EDITING Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17786359 GENETICALLY CORRECTED CELLS FOR THERAPEUTIC USE Final Rejection The Board of Trustees of the Leland Stanford Junior University
17168988 ARRDC1-MEDIATED MICROVESICLES (ARMMS) AND USES THEREOF Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17786255 CHIMERIC ANTIGEN RECEPTOR DENDRITIC CELLS (CAR-DCS) AND METHODS OF MAKING AND USING SAME Final Rejection Washington University
17436131 TARGETED DELIVERY OF IMMUNE-MODULATING VHH AND VHH-FUSION PROTEIN Non-Final OA Massachusetts Institute of Technology
19353269 SELECTIVE TARGETING OF HOST CD70+ ALLOREACTIVE CELLS TO PROLONG ALLOGENEIC CAR T CELL PERSISTENCE Non-Final OA Allogene Therapeutics, Inc.
17841041 SELECTIVE TARGETING OF HOST CD70+ ALLOREACTIVE CELLS TO PROLONG ALLOGENEIC CAR T CELL PERSISTENCE Final Rejection Allogene Therapeutics, Inc.
18035277 CELLS EXPRESSING A CHIMERIC RECEPTOR FROM A MODIFIED INVARIANT CD3 IMMUNOGLOBULIN SUPERFAMILY CHAIN LOCUS AND RELATED POLYNUCLEOTIDES AND METHODS Non-Final OA Juno Therapeutics, Inc.
18941862 BIOACTIVE AND ANTIOXIDANT SUPRAMOLECULAR POLYMER HYDROGELS FOR NEURAL CELL CULTURE Non-Final OA Northwestern University
18929526 COST EFFECTIVE CULTURE MEDIA AND PROTOCOL FOR HUMAN INDUCED PLURIPOTENT STEM CELLS Non-Final OA Northwestern University
17669904 DIAGNOSIS AND TREATMENT OF CARDIOMYOPATHY Non-Final OA The General Hospital Corporation
17511187 CHIMERIC ANTIGEN RECEPTOR (CAR) NK CELLS AND USES THEREOF Final Rejection RESEARCH INSTITUTE AT NATIONWIDE CHILDREN'S HOSPITAL
16960445 3D in vitro Models of Lung Tissue Non-Final OA THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
17770585 ENGINEERED NATURAL KILLER CELLS AND METHODS FOR USING THE SAME IN IMMUNOTHERAPY AND AUTOPHAGY INHIBITON TECHNIQUES Final Rejection Purdue Research Foundation
18716889 METHODS OF GENERATING HUMAN COCHLEAR HAIR CELLS Non-Final OA THE TRUSTEES OF INDIANA UNIVERSITY
17709565 NERVE CELL AND APPLICATION THEREOF Final Rejection KEIO UNIVERSITY
17773103 METHOD FOR THE PRODUCTION OF MÜLLER CELLS AND CELL PRODUCT Non-Final OA UCL BUSINESS LTD
17997731 PROCESSES FOR PRODUCTION OF TUMOR INFILTRATING LYMPHOCYTES AND USES OF THE SAME IN IMMUNOTHERAPY Non-Final OA Iovance Biotherapeutics, Inc.
17778611 T-CELL MASTER CELL BANK Non-Final OA Takeda Pharmaceutical Company Limited
18188795 IL-33 SECRETING IMMUNORESPONSIVE CELLS AND USES THEREOF Non-Final OA MEMORIAL SLOAN-KETTERING CANCER CENTER
17606489 ARTIFICIAL ANTIGEN PRESENTING CELLS COMPRISING LIGANDS FOR NKG2D FOR EXPANDING IMMUNE CELLS FOR IMMUNOTHERAPY Final Rejection H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.
17598916 METHOD FOR PRODUCING CAR GENE-INTRODUCED NK CELLS AND USE THEREOF Non-Final OA KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
18834112 Methods for Activation and Expansion of T Cells Non-Final OA Alaunos Therapeutics, Inc.
18547827 Recombinant Vectors Comprising Polycistronic Expression Cassettes and Methods of Use Thereof Non-Final OA Alaunos Therapeutics, Inc.

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