Prosecution Insights
Last updated: October 27, 2026

Charles Collins Sullivan IV, USPTO Patent Examiner

Listed by the USPTO as SULLIVAN IV, CHARLES COLLINS

Tech Center 1700 • Art Units: 1737

This examiner grants 69% of resolved cases

Analysis

Charles Collins Sullivan IV is an examiner in Art Unit 1737 of Tech Center 1700. He has resolved 101 cases with an allowance rate of 69.3%. The median time to allowance is 1178 days. The interview lift is 12.0%, indicating a positive correlation between interviews and allowances. This lift suggests that direct communication is a helpful tool for resolving outstanding issues in his cases.

Fujifilm Holdings Corporation, Kyocera Document Solutions Inc., and Ricoh Company, Ltd. are his top corporate applicants. JCIPRNET, Studebaker Brackett PLLC, and Grüneberg Global IP, PLLC are the top law firms. The 69.3% allowance rate and 1178 day median pendency provide a baseline for these imaging and document technology companies. Practitioners should note the 12.0% interview lift when planning their prosecution strategy.

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

Performance Statistics

69.3%
Allow Rate
+4.3% vs TC avg
130
Total Applications
+12.0%
Interview Lift
1178
Avg Prosecution Days
Based on 101 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
19.1%
§102 Novelty
59.4%
§103 Obviousness
11.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18477545 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING SAME, AND ELECTROPHOTOGRAPHIC APPARATUS Final Rejection FUJI ELECTRIC CO., LTD.
17502755 TONER Non-Final OA CANON KABUSHIKI KAISHA
18670407 TWO-COMPONENT DEVELOPER AND IMAGE FORMING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
18638333 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
18458982 DEVELOPER, DEVELOPER SET, AND IMAGE FORMING APPARATUS Final Rejection KYOCERA Document Solutions Inc.
18771236 IMAGE FORMING SYSTEM AND IMAGE FORMING METHOD Non-Final OA Konica Minolta, Inc.
18323690 ELECTROPHOTOGRAPHIC TONER AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC TONER Non-Final OA Konica Minolta, Inc.
18402756 TONER, TONER ACCOMMODATING UNIT, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD Final Rejection RICOH COMPANY, LTD.
18314218 RESIN PARTICLE AND TONER Non-Final OA RICOH COMPANY, LTD.
18180766 TONER, TONER-STORING UNIT, DEVELOPER, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD Non-Final OA RICOH COMPANY, LTD.
18768014 ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER SET, ELECTROSTATIC CHARGE IMAGE DEVELOPER SET, TONER CARTRIDGE SET, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD Non-Final OA FUJIFILM Business Innovation Corp.
18741543 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Non-Final OA FUJIFILM Business Innovation Corp.
18735173 MANUFACTURING METHOD OF ELECTROSTATIC CHARGE IMAGE DEVELOPING CARRIER, AND MANUFACTURING METHOD OF ELECTROSTATIC CHARGE IMAGE DEVELOPER Non-Final OA FUJIFILM Business Innovation Corp.
18733829 MANUFACTURING METHOD OF ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER Non-Final OA FUJIFILM Business Innovation Corp.
18731759 GREEN TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD Non-Final OA FUJIFILM Business Innovation Corp.
18456089 ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, AND IMAGE FORMING APPARATUS Final Rejection FUJIFILM Business Innovation Corp.
18304352 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Non-Final OA FUJIFILM Business Innovation Corp.
18297656 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Final Rejection FUJIFILM Business Innovation Corp.
18007172 METHOD FOR MANUFACTURING RESIN PARTICLE DISPERSION FOR TONER Final Rejection KAO CORPORATION

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Charles Collins Sullivan IV's allowance rate?

69.3% of resolved applications examined by Charles Collins Sullivan IV were allowed (101 resolved cases), compared with 63.4% across Art Unit 1737 over the last five years.

Does an interview help with examiner Charles Collins Sullivan IV?

This examiner's interview lift is +12.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Charles Collins Sullivan IV take to allow a patent?

Applications allowed by Charles Collins Sullivan IV took 1,178 days on average from filing to allowance.

Which art unit does examiner Charles Collins Sullivan IV work in?

Charles Collins Sullivan IV examines applications in Art Unit 1737 in Tech Center 1700 (Chemistry & Materials).

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