Prosecution Insights
Last updated: October 27, 2026

Gerald Luther Sung, USPTO Patent Examiner

Listed by the USPTO as SUNG, GERALD LUTHER

Tech Center 3700 • Art Units: 3741 3746

This examiner grants 80% of resolved cases

Analysis

Sung, Gerald Luther is assigned to Tech Center 3700 and Art Unit 3741. The record includes 864 resolved cases and reports a 79.9% allowance rate. This substantial case history gives practitioners a useful basis for evaluating prosecution expectations and preparing claims for the relevant subject matter.

The interview lift is 28.6%, indicating a positive association between interviews and allowance outcomes. The median time to allowance is 1191 days. The listed companies are Safran, Cardinal Health, and Bard Access Systems. The listed firms include AMPACC Law Group, BIRCH STEWART KOLASCH & BIRCH, and Brooks Kushman. Interviews may be a useful component of a broader response plan.

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

Performance Statistics

79.9%
Allow Rate
+9.9% vs TC avg
884
Total Applications
+28.6%
Interview Lift
1191
Avg Prosecution Days
Based on 864 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
24.3%
§102 Novelty
41.8%
§103 Obviousness
29.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19132609 TURBOMACHINE COMBUSTION CHAMBER Non-Final OA SAFRAN AIRCRAFT ENGINES
19122075 SYSTEM FOR SUPPLYING HYDROGEN TO A TURBINE ENGINE, AND DEVICE FOR REGULATING SUCH A HYDROGEN SUPPLY SYSTEM Non-Final OA SAFRAN AIRCRAFT ENGINES
18120863 Intraosseous Access System Non-Final OA Bard Access Systems, Inc.
18442395 METHOD AND DEVICE FOR ENTERING AND EXITING AN ECONOMY OPERATING MODE FOR A TWIN-ENGINE AIRCRAFT Final Rejection AIRBUS HELICOPTERS
19222113 Transfer Assembly to Transfer Mechanical Power During Operation of a Turbine Engine Non-Final OA The Boeing Company
19024324 GAS TURBINE ENGINE FRONT SECTION Non-Final OA RTX CORPORATION
19068794 Hybrid Electric Propulsion System with Start Sequence and Shutdown Sequence Non-Final OA Pratt & Whitney Canada Corp.
18122982 Integrated Catheter with Manually-Actuable Valve Mechanism Final Rejection Becton, Dickinson and Company

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Frequently Asked Questions

What is examiner Gerald Luther Sung's allowance rate?

79.9% of resolved applications examined by Gerald Luther Sung were allowed (864 resolved cases), compared with 62.4% across Art Unit 3741 over the last five years.

Does an interview help with examiner Gerald Luther Sung?

This examiner's interview lift is +28.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Gerald Luther Sung take to allow a patent?

Applications allowed by Gerald Luther Sung took 1,191 days on average from filing to allowance.

Which art unit does examiner Gerald Luther Sung work in?

Gerald Luther Sung examines applications in Art Unit 3741 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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