Prosecution Insights
Last updated: October 01, 2026

Examiner: SANG, HONG

Tech Center 1600 • Art Units: 1643 1645 1646

This examiner grants 55% of resolved cases

Analysis

Hong Sang is an examiner in Tech Center 1600 and Art Unit 1643. The examiner has a record of 931 resolved cases. The allowance rate for these cases is 55.0 percent. This 55.0 percent rate provides a benchmark for practitioners to evaluate the likelihood of a successful outcome in this technical area.

The interview lift for this examiner is 62.4 percent. This 62.4 percent lift indicates that conducting an interview is a highly effective strategy for improving the chances of allowance. The median days to allowance is 1273. This 1273-day figure helps practitioners estimate the duration of the prosecution process in Art Unit 1643. The 931 resolved cases offer a stable basis for these statistical observations in Tech Center 1600.

Practitioners can use the 1273 median days to allowance to manage their dockets and client expectations. The 55.0 percent allowance rate is a key factor in evaluating the examination landscape. Additionally, the 62.4 percent interview lift highlights the value of verbal advocacy in resolving outstanding issues with the examiner.

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

Performance Statistics

55.0%
Allow Rate
-5.0% vs TC avg
968
Total Applications
+62.4%
Interview Lift
1273
Avg Prosecution Days
Based on 932 resolved cases, 2023–2026

Rejection Statute Breakdown

4.5%
§101 Eligibility
16.9%
§102 Novelty
28.3%
§103 Obviousness
29.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19418900 METHODS OF TREATING HIGH RISK MULTIPLE MYELOMA Final Rejection Janssen Biotech, Inc.
17774685 Anti-TIGIT Antibodies and Uses Thereof Non-Final OA Merck Patent GmbH
17808402 ANTIBODIES AND METHOD OF PRODUCING ANTIBODIES Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
18549844 GENERATION OF HUMAN PEANUT ALLERGEN-SPECIFIC IGE MONOCLONAL ANTIBODIES FOR DIAGNOSTIC AND THERAPEUTIC USE Non-Final OA VANDERBILT UNIVERSITY
18443878 METHODS OF TREATING MULTIPLE MYELOMA Non-Final OA Sanofi-Aventis U.S. LLC
18550484 METHODS FOR ACTIVATION AND EXPANSION OF NATURAL KILLER CELLS AND COMBINATIONS WITH BISPECIFIC ANTIBODIES Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18477584 Enhancing Activity of CAR T Cells by Co-Introducing a Bispecific Antibody Non-Final OA The Trustees of the University of Pennsylvania
18182676 Expansion Of Peripheral Blood Lymphocytes (PBLS) From Peripheral Blood Final Rejection Iovance Biotherapeutics, Inc.
18503107 M971 CHIMERIC ANTIGEN RECEPTORS Non-Final OA The United States of America,as represented by the Secretary,Department of Health and Human Services
18502993 M971 CHIMERIC ANTIGEN RECEPTORS Non-Final OA The United States of America,as represented by the Secretary,Department of Health and Human Services
16761183 TEST KITS AND ASSAYS Non-Final OA InsituGen Limited

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