Prosecution Insights
Last updated: October 02, 2026

Examiner: LEE, CRYSTAL J

Tech Center 3600 • Art Units: 1731 1738 3672 3674

This examiner grants 82% of resolved cases

Analysis

Crystal J. Lee serves in Tech Center 3600 and Art Unit 1731. The examiner has 526 resolved cases with an allowance rate of 82.1 percent. This high rate indicates a favorable environment for patent grants. The 82.1 percent allowance rate suggests that a large majority of applications reaching resolution are successful.

The interview lift is 21.5 percent. This is a strong positive lift, suggesting that interviews are a very effective tool for securing an allowance. Practitioners should consider direct communication as a primary strategy to resolve rejections. The 21.5 percent lift is a key metric for improving outcomes in Art Unit 1731.

The median days to allowance is 804. This is an efficient timeline for patent prosecution. The data from 526 cases shows a consistent pattern of success, especially when interviews are utilized. The 804-day median pendency and 82.1 percent allowance rate make this a highly productive profile for applicants in Tech Center 3600.

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

Performance Statistics

82.1%
Allow Rate
+30.1% vs TC avg
542
Total Applications
+21.5%
Interview Lift
804
Avg Prosecution Days
Based on 526 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
14.4%
§102 Novelty
49.7%
§103 Obviousness
29.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18954796 FIBER INCORPORATED THIXOTROPIC CEMENT SLURRY FOR LOST CIRCULATION APPLICATION Final Rejection Halliburton Energy Services, Inc.
19216453 HYDRAULIC FRACTURING WITH DYNAMIC LOADING Final Rejection ExxonMobil Technology and Engineering Company
18418598 OIL-BASED DRILLING FLUIDS AND METHODS THEREOF Non-Final OA SAUDI ARABIAN OIL COMPANY
18738206 REACTION SYSTEM Non-Final OA IHI Corporation
18720497 LOOP COMBUSTION PLANT AND METHOD COMPRISING A CYCLONE AIR REACTOR Non-Final OA TOTALENERGIES ONETECH
18464581 GLASS COMPOSITION AND DENTAL COMPOSITION Final Rejection GC Corporation

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