Prosecution Insights
Last updated: October 26, 2026

Vivian Chen, USPTO Patent Examiner

Listed by the USPTO as CHEN, VIVIAN

Tech Center 2800 • Art Units: 1717 1732 1787 1794 2872

This examiner grants 57% of resolved cases

Analysis

CHEN, VIVIAN works in tech center 2800 and art unit 1717, with 1005 resolved cases. The allowance rate is 56.6%, and the median time to allowance is 1255 days. Interview activity corresponds to a 28.5% lift, making interview strategy a relevant consideration for applicants prosecuting cases in this docket.

The principal companies in the record are Gunze Limited, BASF SE, and The Azek Group LLC. The leading firms are GREENBLUM & BERNSTEIN, P.L.C., OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., and OLIFF PLC. The substantial resolved-case volume gives practitioners a broad historical base for reviewing this examiner’s prosecution patterns.

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

Performance Statistics

56.6%
Allow Rate
-11.4% vs TC avg
1,069
Total Applications
+28.5%
Interview Lift
1255
Avg Prosecution Days
Based on 1005 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
3.1%
§102 Novelty
57.4%
§103 Obviousness
31.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18690513 LAMINATED POLYESTER FILM, LAMINATE, AND METHOD FOR PRODUCING LAMINATED POLYESTER FILM Non-Final OA Toray Industries, Inc.
17999079 Method for Manufacturing a Metal-Polymer Hybrid Part and Metal-Polymer Hybrid Part Final Rejection BASF SE
19105911 CONNECTED BODY OF METAL MATERIALS AND METHOD FOR CONNECTING METAL MATERIALS Non-Final OA RESONAC CORPORATION
18284014 MULTILAYER FILM AND LIQUID AGENT CONTAINER Final Rejection OTSUKA PHARMACEUTICAL FACTORY, INC.
18958743 BIODEGRADABLE LAMINATE Non-Final OA Mitsubishi Chemical Corporation
18860118 WEATHERABLE POWDER COATING PRIMER COMPOSITION INCLUDING ZINC Non-Final OA PPG INDUSTRIES OHIO, INC.
18283356 HOT MELT ADHESIVE COMPOSITION AND LAMINATE Final Rejection TOYOBO MC Corporation
18000726 MULTILAYER RESILIENT FLOORING ARTICLE Final Rejection Eastman Chemical Company

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Frequently Asked Questions

What is examiner Vivian Chen's allowance rate?

56.6% of resolved applications examined by Vivian Chen were allowed (1,005 resolved cases), compared with 49.3% across Art Unit 1717 over the last five years.

Does an interview help with examiner Vivian Chen?

This examiner's interview lift is +28.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Vivian Chen take to allow a patent?

Applications allowed by Vivian Chen took 1,255 days on average from filing to allowance.

Which art unit does examiner Vivian Chen work in?

Vivian Chen examines applications in Art Unit 1717 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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