Prosecution Insights
Last updated: October 27, 2026

Fan Zhang, USPTO Patent Examiner

Listed by the USPTO as ZHANG, FAN

Tech Center 2600 • Art Units: 2625 2674 2682

This examiner grants 55% of resolved cases

Analysis

ZHANG, FAN has resolved 611 cases in Tech Center 2600 and Art Unit 2625. The allowance rate is 55.3%, and the interview lift is 16.4%. The median time to allowance is 1202 days. The substantial record shows an allowance outcome for more than half of resolved cases, while the interview figure indicates a more limited reported effect.

The principal companies are Canon Inc., Kyocera Document Solutions Inc., and Ricoh Company, Ltd. The leading firms are IP Business Solutions, LLC, Venable LLP, and Alleman Hall LLP. These recurring participants offer practitioners concrete points of reference for document-focused technology and prosecution before this examiner.

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

Performance Statistics

55.3%
Allow Rate
-6.7% vs TC avg
653
Total Applications
+16.4%
Interview Lift
1202
Avg Prosecution Days
Based on 611 resolved cases, 2023–2026

Rejection Statute Breakdown

7.8%
§101 Eligibility
11.7%
§102 Novelty
70.6%
§103 Obviousness
2.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18466832 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM Final Rejection FUJIFILM Corporation
18501973 TECHNIQUES FOR UTILIZING GAIN MAPS TO MANAGE VARYING STATES OF AN IMAGE Final Rejection Apple Inc.
18905732 IMAGE FORMING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
18903086 COMPUTER-READABLE MEDIUM AND CONTROL METHOD Non-Final OA CANON KABUSHIKI KAISHA
18794889 INSPECTION APPARATUS AND INSPECTION SYSTEM Non-Final OA CANON KABUSHIKI KAISHA
18677112 COMPUTER-READABLE STORAGE MEDIUM AND INFORMATION PROCESSING APPARATUS, AND SYSTEM Final Rejection CANON KABUSHIKI KAISHA
18209809 Machine Learning Fault Detection in Manufacturing Final Rejection Robert Bosch GmbH
18105476 Implant With Identification Feature For Medical Imaging Non-Final OA Stryker European Operations Limited
18955411 Grid-Based Enrollment for Face Authentication Non-Final OA Google LLC
18611842 RELAY SERVER, PRINTING SYSTEM, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM Final Rejection SEIKO EPSON CORPORATION
18224932 Selecting a Printer Based on Proximity Final Rejection ZEBRA TECHNOLOGIES CORPORATION
18963049 ELECTRONIC APPARATUS AND DATA STORAGE METHOD CAPABLE OF REDUCING THE NUMBER OF STORAGE PORTIONS CONNECTABLE TO LOGIC CIRCUIT Non-Final OA KYOCERA Document Solutions Inc.
18670930 JOB COMMAND GENERATION DEVICE, COMPUTER-READABLE NON-TRANSITORY RECORDING MEDIUM HAVING JOB COMMAND GENERATION PROGRAM STORED THEREIN, AND VOICE OPERATION SYSTEM Final Rejection KYOCERA Document Solutions Inc.
18651858 IMAGE FORMING APPARATUS THAT DECIDES IMAGE QUALITY Final Rejection KYOCERA Document Solutions Inc.
18603596 INDUSTRIAL PRINTING SYSTEM, PRINT SERVER, AND PROCESS MANAGEMENT METHOD THAT PERFORMS PEER-TO-PEER DISTRIBUTED PROCESSING OF PRODUCTION PRINTING BASED ON LICENSES ON AVAILABLE DATES AND TIMES Final Rejection KYOCERA Document Solutions Inc.
18338337 METHODS AND SYSTEMS FOR IMAGING Non-Final OA SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
18744304 METHOD AND SYSTEM FOR SIMULTANEOUS LOCALIZATION AND MAPPING BASED ON 2D LIDAR AND A CAMERA WITH DIFFERENT VIEWING RANGES Final Rejection KIA CORPORATION
18339103 CONDITION MONITORING APPARATUS AND STORAGE MEDIUM Non-Final OA DENSO CORPORATION
18255630 RADIOMICS STANDARDIZATION Non-Final OA THE JOHNS HOPKINS UNIVERSITY
17948409 METHOD FOR DETERMINING A DIAGNOSTICALLY RELEVANT SECTIONAL PLANE Final Rejection Siemens Healthcare GmbH
18807053 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD Non-Final OA SHARP KABUSHIKI KAISHA
18940864 LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, LIQUID DISCHARGE APPARATUS, LIQUID DISCHARGE METHOD, AND NON-TRANSITORY RECORDING MEDIUM Non-Final OA RICOH COMPANY, LTD.
18651682 MERGER OF EMBEDDED FONTS IN ELECTRONIC FILES Final Rejection RICOH COMPANY, LTD.
18581799 APPARATUS, SYSTEM, AND NON-TRANSITORY RECORDING MEDIUM Non-Final OA RICOH COMPANY, LTD.

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Frequently Asked Questions

What is examiner Fan Zhang's allowance rate?

55.3% of resolved applications examined by Fan Zhang were allowed (611 resolved cases), compared with 66.5% across Art Unit 2625 over the last five years.

Does an interview help with examiner Fan Zhang?

This examiner's interview lift is +16.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Fan Zhang take to allow a patent?

Applications allowed by Fan Zhang took 1,202 days on average from filing to allowance.

Which art unit does examiner Fan Zhang work in?

Fan Zhang examines applications in Art Unit 2625 in Tech Center 2600 (Communications).

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