Prosecution Insights
Last updated: October 26, 2026

Craig Sang Kim, USPTO Patent Examiner

Listed by the USPTO as KIM, CRAIG SANG

Tech Center 3700 • Art Units: 3665 3741

This examiner grants 86% of resolved cases

Analysis

This examiner is assigned to Tech Center 3700 and Art Unit 3665, with 792 resolved cases. The allowance rate is 86.4%, and the median time to allowance is 1091 days. The substantial record indicates favorable allowance outcomes, but the median timeline remains long enough to affect prosecution scheduling and product-related decisions.

The interview lift is 9.9%, showing a modest positive association with allowance outcomes. Applicants may use interviews to narrow disputed issues, while relying on claim amendments and written reasoning to carry the principal burden. The leading companies are General Electric Company, Safran S.A., and Rolls-Royce plc. The leading firms are Dority & Manning, AMPACC Law Group, and CHRISTENSEN O'CONNOR JOHNSON KINDNESS.

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

Performance Statistics

86.4%
Allow Rate
+16.4% vs TC avg
832
Total Applications
+9.9%
Interview Lift
1091
Avg Prosecution Days
Based on 792 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
29.6%
§102 Novelty
44.1%
§103 Obviousness
20.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19133523 MONITORING OF THE PARTICLES OF A TURBINE ENGINE Non-Final OA Safran Aircraft Engines
19108234 DEVICE AND METHOD FOR INJECTING A HYDROGEN-AIR MIXTURE FOR A TURBINE ENGINE BURNER Non-Final OA SAFRAN
18952302 FUEL SPRAY NOZZLE FOR A GAS TURBINE ENGINE Non-Final OA Rolls-Royce plc
19375390 GAS TURBINE COMBUSTOR Non-Final OA Toyota Jidosha Kabushiki Kaisha
19274016 GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCT Non-Final OA General Electric Company
19259177 GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCT Non-Final OA General Electric Company
19259284 GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCT Non-Final OA General Electric Company
19243886 GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCT Non-Final OA General Electric Company
19135606 TRIPLE-FLOW AIRCRAFT TURBINE ENGINE Non-Final OA GENERAL ELECTRIC COMPANY
19134329 TRIPLE-FLOW AIRCRAFT TURBOMACHINE Non-Final OA GENERAL ELECTRIC COMPANY
19145124 PLANT AND METHOD FOR OPERATING PLANT Non-Final OA MITSUBISHI HEAVY INDUSTRIES, LTD.
18292202 SECUREMENT DEVICE, KIT, AND METHOD OF USING SECUREMENT DEVICE Final Rejection Solventum Intellectual Properties Company
19470944 AN ARC REACTION ENGINE AND METHOD OF USE Non-Final OA ACE VTOL PTY LTD

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Craig Sang Kim's allowance rate?

86.4% of resolved applications examined by Craig Sang Kim were allowed (792 resolved cases), compared with 64.2% across Art Unit 3665 over the last five years.

Does an interview help with examiner Craig Sang Kim?

This examiner's interview lift is +9.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Craig Sang Kim take to allow a patent?

Applications allowed by Craig Sang Kim took 1,091 days on average from filing to allowance.

Which art unit does examiner Craig Sang Kim work in?

Craig Sang Kim examines applications in Art Unit 3665 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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