Prosecution Insights
Last updated: October 26, 2026

Jieun Ham, USPTO Patent Examiner

Listed by the USPTO as HAM, JIEUN

Tech Center 1600 • Art Units: 1600 1643 1645 1652

This examiner grants 46% of resolved cases

Analysis

HAM, JIEUN is a USPTO patent examiner in tech center 1600 and art unit 1600. The profile includes 11 resolved cases, with a 45.5% allowance rate and a 0.0% interview lift. The median time to allowance is 1079 days.

The leading companies are Board of Regents of the University of Texas System, The Johns Hopkins University, and Regents of the University of Minnesota. The leading firms are NORTON ROSE FULBRIGHT US LLP, WOLF GREENFIELD & SACKS, P.C., and CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC. The limited record supports targeted review rather than broad conclusions.

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

Performance Statistics

45.5%
Allow Rate
-14.5% vs TC avg
39
Total Applications
+0.0%
Interview Lift
1079
Avg Prosecution Days
Based on 11 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
17.8%
§102 Novelty
32.2%
§103 Obviousness
28.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17773658 SMALL LIPID NANOPARTICLES, AND CANCER VACCINE INCLUDING SAME Non-Final OA KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18202066 MAP KINASE PATHWAY TARGETS FOR THE TREATMENT OF MARFAN SYNDROME Final Rejection The Johns Hopkins University

Facing This Examiner?

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

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Jieun Ham's allowance rate?

45.5% of resolved applications examined by Jieun Ham were allowed (11 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Jieun Ham?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jieun Ham take to allow a patent?

Applications allowed by Jieun Ham took 1,079 days on average from filing to allowance.

Which art unit does examiner Jieun Ham work in?

Jieun Ham examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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