Prosecution Insights
Last updated: October 27, 2026

Michael N Zhang, USPTO Patent Examiner

Listed by the USPTO as ZHANG, MICHAEL N

Tech Center 6200 • Art Units: 1781 1787 6221

This examiner grants 54% of resolved cases

Analysis

ZHANG, MICHAEL N has resolved 411 cases in Tech Center 6200 and Art Unit 1781. The allowance rate is 54.5%, while the interview lift is 22.5%. The median time to allowance is 1172 days. The profile shows an allowance outcome for more than half of resolved cases, with interviews producing a moderate reported effect across a substantial record.

The company portfolio includes Corning Incorporated, NITTO DENKO Corporation, and Eastman Chemical Company. The leading firms are DORITY & MANNING, P.A., NIXON & VANDERHYE, PC, and Abel Schillinger, LLP. These participants give practitioners concrete reference points for materials-related filings and representation in the art unit.

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

Performance Statistics

54.5%
Allow Rate
-5.5% vs TC avg
495
Total Applications
+22.5%
Interview Lift
1172
Avg Prosecution Days
Based on 411 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
8.3%
§102 Novelty
58.9%
§103 Obviousness
28.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18805552 BASE MATERIAL FOR METAMATERIAL, METAMATERIAL, AND LAMINATE Final Rejection FUJIFILM Corporation
18504549 Fabric with Electrical Components Non-Final OA Apple Inc.
18122857 ROOFING GRANULES AND RELATED ARTICLES Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
19039182 WINDOW AND ELECTRONIC DEVICE INCLUDING THE SAME Non-Final OA Samsung Display Co., LTD.
18681644 PACKAGE MATERIAL AND METHOD OF PRODUCING A PACKAGE MATERIAL Non-Final OA Sony Group Corporation
17919251 MOLDED BODY AND METHOD FOR PRODUCING MOLDED BODY Final Rejection Panasonic Intellectual Property Management Co., Ltd.
18478565 APPAREL COMPRISING A WOUND THREAD LAYER AND METHODS OF MAKING THE SAME Final Rejection adidas AG
18691284 POLYETHYLENE FILM Final Rejection Toray Industries, Inc.
18011285 COLD-FORMED COVER GLASS HAVING COMPOUND CURVATURE AND/OR MULTIPLE CURVATURES Non-Final OA CORNING INCORPORATED
17324758 LIGHT-WEIGHT, HIGH STIFFNESS GLASS LAMINATE STRUCTURE Non-Final OA CORNING INCORPORATED
18439145 PLATE GLASS Non-Final OA Nippon Electric Glass Co., Ltd.
19021147 DECORATIVE SHEET AND DECORATIVE PLATE Non-Final OA TOPPAN HOLDINGS INC.
18687751 HEAT STABLE BARRIER FILM STRUCTURE Final Rejection AMCOR FLEXIBLES NORTH AMERICA, INC.
19077266 GROUP-III ELEMENT NITRIDE SEMICONDUCTOR SUBSTRATE AND BONDED SUBSTRATE Non-Final OA NGK INSULATORS, LTD.
18264632 POLYOLEFIN COMPOSITION FOR FUNCTIONAL FILMS Non-Final OA Basell Poliolefine Italia S.r.l.
18874033 SEALING MEMBER Non-Final OA NITTO DENKO CORPORATION
18691477 ADHESIVE TAPE AND METHOD FOR MANUFACTURING ADHESIVE TAPE Final Rejection NITTO DENKO CORPORATION
18855036 FILM Non-Final OA BOREALIS AG
18080467 SPECTACLE LENS305618 Non-Final OA HOYA LENS THAILAND LTD.
17996005 HOT-FILLABLE ARTICLES MADE FROM MULTILAYERED THERMOFORMABLE FILM AND SHEET Final Rejection Eastman Chemical Company
18688831 POLYMER INTERLAYERS WITH LOW MOTTLE AND REDUCED ICEFLOWER DEFECTS Final Rejection SOLUTIA INC.
18996000 POLY(LACTIC ACID-b-3-HYDROXYPROPIONIC ACID) BLOCK COPOLYMER COMPOSITION AND FILM COMPRISING THEREOF Non-Final OA LG CHEM, LTD.
17972453 DIE INCLUDING A NON-RECTANGULAR SHAPED OPTICAL MATERIAL AND METHODS OF MANUFACTURE Final Rejection VIAVI SOLUTIONS INC.
18891354 ASPHALT COMPOSITION FOR ROOFING APPLICATIONS Final Rejection CERTAINTEED LLC
18752602 LIGHTWEIGHT CLOTHING APPARATUS Non-Final OA The Haberdash Group, Inc.
18611063 ARTIFICIAL LEATHER AND METHOD FOR MANUFACTURING THE SAME Non-Final OA San Fang Chemical Industry Co., Ltd.
18258816 HIGH-DISINTEGRATION MULTILAYER BIODEGRADABLE FILM Final Rejection NOVAMONT S.P.A.

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Frequently Asked Questions

What is examiner Michael N Zhang's allowance rate?

54.5% of resolved applications examined by Michael N Zhang were allowed (411 resolved cases), compared with 47.7% across Art Unit 1781 over the last five years.

Does an interview help with examiner Michael N Zhang?

This examiner's interview lift is +22.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michael N Zhang take to allow a patent?

Applications allowed by Michael N Zhang took 1,172 days on average from filing to allowance.

Which art unit does examiner Michael N Zhang work in?

Michael N Zhang examines applications in Art Unit 1781 in Tech Center 6200.

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