Prosecution Insights
Last updated: October 27, 2026

Chau N Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, CHAU N

Tech Center 2800 • Art Units: 1786 2831 2833 2835 2841 2847

This examiner grants 68% of resolved cases

Analysis

NGUYEN, CHAU N works in Technology Center 2800 and Art Unit 1786. The profile covers 1554 resolved cases and reports an allowance rate of 68.0%. That outcome shows that allowance is common but not assured, making claim positioning and prior-art analysis important parts of prosecution strategy. The median time to allowance is 951 days, which should be incorporated into portfolio and commercial planning.

Interviews correspond to a 14.1% lift in allowance outcomes. Practitioners may consider them when the record presents technical questions that could be resolved more efficiently through direct discussion. The leading companies are Sumitomo Electric Industries Ltd., Nkt Hv Cables AB, and Yazaki Corporation. The leading firms are Whitmyer IP Group LLC, GREENBLUM & BERNSTEIN, P.L.C., and RENNER, OTTO, BOISSELLE & SKLAR, LLP.

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

Performance Statistics

68.0%
Allow Rate
At TC average
1,637
Total Applications
+14.1%
Interview Lift
951
Avg Prosecution Days
Based on 1554 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
23.1%
§102 Novelty
51.4%
§103 Obviousness
19.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18791872 DATA TRANSMISSION CABLE AND DISPLAY APPARATUS INCLUDING THE SAME Non-Final OA LG ELECTRONICS INC.
18398426 LOW-RESISTANCE ENCAPSULATION OF A TUBING ENCAPSULATED CONDUCTOR FOR POWERING EQUIPMENT IN WELLBORE OPERATIONS Final Rejection Halliburton Energy Services, Inc.
18860058 CONDUCTIVE FILM FOR ATTACHMENT TO ELECTRICAL SYSTEMS Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18813248 ELECTRONIC DEVICE AND CABLE Final Rejection NIDEC CORPORATION
19007211 CABLE GLAND WITH COMPRESSION LIMITING ASSEMBLY Non-Final OA Eaton Intelligent Power Limited
18963925 MULTI-CORE CABLE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18856318 WIRE, STRANDED WIRE, CABLE, AND METHOD OF MANUFACTURING WIRE Final Rejection SUMITOMO ELECTRIC INDUSTRIES, LTD.
18899143 SHIELDED ELECTRICAL WIRE Final Rejection SUMITOMO ELECTRIC INDUSTRIES, LTD.
18845822 INSULATED ELECTRIC WIRE, WIRING HARNESS, AND METHOD FOR PRODUCING INSULATED ELECTRIC WIRE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18754648 MULTI-CORE CABLE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18718307 SUPERCONDUCTING WIRE CONNECTION STRUCTURE Final Rejection SUMITOMO ELECTRIC INDUSTRIES, LTD.
18293391 WIRING MEMBER-EQUIPPED ADHEREND Final Rejection SUMITOMO ELECTRIC INDUSTRIES, LTD.
18730392 SENSOR DEVICE Non-Final OA Sumitomo Wiring Systems, Ltd.
18686029 WIRING SYSTEM AND MULTIPURPOSE WIRING MEMBER Non-Final OA Sumitomo Wiring Systems, Ltd.
18685664 WIRING SYSTEM AND MULTIPURPOSE WIRING MEMBER Non-Final OA Sumitomo Wiring Systems, Ltd.
18418694 COUPLED CONDUCTORS IN TWINAX CABLE AND STRIPLINE PRINTED CIRCUIT BOARD FOR SKEW MITIGATION Non-Final OA Cisco Technology, Inc.
18905932 MECHANICALLY ROBUST COMPOSITE STRUCTURES WITH FORMED ELECTRICAL PATHS Non-Final OA Applied Materials, Inc.
18992355 DATA COMMUNICATION LINE WITH LATTICE STRUCTURE Non-Final OA SAMTEC, INC.
19007906 CABLE ASSEMBLY WITH SPLICE CONNECTOR Non-Final OA TE Connectivity Solutions GmbH
18624193 Busbar with Phase Change Material Non-Final OA TE Connectivity Solutions GmbH
18413104 WIRE SPLICE Final Rejection TE Connectivity Solutions GmbH
18976615 WIRE HARNESS ASSEMBLY Non-Final OA Yazaki Corporation
18413601 COMMUNICATION CABLE AND WIRE HARNESS USING SAME Final Rejection Yazaki Corporation
17457600 ALUMINUM CARBON NANOTUBE (AL-CNT) WIRES IN TRANSMISSION OR DISTRIBUTION LINE CABLES Non-Final OA YAZAKI CORPORATION
18874848 CABLE Non-Final OA BOREALIS AG
18271319 COMPOSITION Final Rejection BOREALIS AG
18703332 DUAL BUSBAR Final Rejection Lisa Dräxlmaier GmbH
18813747 COMPOSITE CABLE AND COMPOSITE HARNESS Final Rejection Proterial, Ltd.
18795598 MOLDED ELECTRICAL WIRE Final Rejection Proterial, Ltd.
18531006 MULTICORE CABLE Non-Final OA Proterial, Ltd.

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Frequently Asked Questions

What is examiner Chau N Nguyen's allowance rate?

68.0% of resolved applications examined by Chau N Nguyen were allowed (1,554 resolved cases), compared with 47.0% across Art Unit 1786 over the last five years.

Does an interview help with examiner Chau N Nguyen?

This examiner's interview lift is +14.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Chau N Nguyen take to allow a patent?

Applications allowed by Chau N Nguyen took 951 days on average from filing to allowance.

Which art unit does examiner Chau N Nguyen work in?

Chau N Nguyen examines applications in Art Unit 1786 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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