Prosecution Insights
Last updated: October 27, 2026

Sung H Pak, USPTO Patent Examiner

Listed by the USPTO as PAK, SUNG H

Tech Center 2800 • Art Units: 2874

This examiner grants 88% of resolved cases

Analysis

Sung H. Pak is assigned to Tech Center 2800 and art unit 2874. The profile covers 1232 resolved cases, with an 87.8% allowance rate and a median of 722 days to allowance. The substantial record shows frequent allowances and a prosecution timeline that provides a useful planning reference for new matters.

Interviews are associated with an 11.4% lift in allowance outcomes. CommScope Technologies LLC, Corning Incorporated, and Massachusetts Institute of Technology are the leading companies. The leading firms are MERCHANT & GOULD P.C., Bayramoglu Law Offices LLC, and GREER, BURNS & CRAIN, LTD. Practitioners may prioritize clear claim presentation and efficient written responses, using interviews when a specific issue warrants direct engagement.

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

Performance Statistics

87.8%
Allow Rate
+19.8% vs TC avg
1,257
Total Applications
+11.4%
Interview Lift
722
Avg Prosecution Days
Based on 1232 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
35.6%
§102 Novelty
52.7%
§103 Obviousness
2.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18810944 OPTICAL PHASED ARRAY FIBER COUPLER Non-Final OA The Regents of the University of Michigan
18798428 Opto-Electronic Chiplets for Scalable Coherent Interconnects to Zero-Change VLSI Electronics Non-Final OA Massachusetts Institute of Technology
18845439 Polarization Controller Based on On-chip Mode Conversion Non-Final OA ZHEJIANG UNIVERSITY
18745266 DIRECTLY BONDED OPTICAL COMPONENTS Non-Final OA Adeia Semiconductor Bonding Technologies Inc.
18819483 FIBER OPTIC CONNECTORS HAVING A KEYING STRUCTURE AND METHODS OF MAKING THE SAME Non-Final OA CORNING RESEARCH & DEVELOPMENT CORPORATION
18668881 MULTIFIBER FIBER OPTIC CONNECTORS, CABLE ASSEMBLIES AND METHODS OF MAKING THE SAME Non-Final OA CORNING RESEARCH & DEVELOPMENT CORPORATION
18885214 EFFICIENCY-LADDERED CROPPED EXIT PUPIL EXPANDER FOR COMPACT DIFRACTIVE WAVEGUIDES Non-Final OA Applied Materials, Inc.
18899853 TELECOMMUNICATIONS ENCLOSURE MOUNTING SYSTEM Non-Final OA COMMSCOPE TECHNOLOGIES LLC
18819842 EQUIPMENT PANEL WITH TERMINATION REGION Non-Final OA COMMSCOPE TECHNOLOGIES LLC
18794850 STRAIN RELIEF BOOT Non-Final OA CommScope Technologies LLC

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Frequently Asked Questions

What is examiner Sung H Pak's allowance rate?

87.8% of resolved applications examined by Sung H Pak were allowed (1,232 resolved cases), compared with 78.9% across Art Unit 2874 over the last five years.

Does an interview help with examiner Sung H Pak?

This examiner's interview lift is +11.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sung H Pak take to allow a patent?

Applications allowed by Sung H Pak took 722 days on average from filing to allowance.

Which art unit does examiner Sung H Pak work in?

Sung H Pak examines applications in Art Unit 2874 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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