Prosecution Insights
Last updated: August 18, 2026

Examiner: CHEN, SOPHIA S

Tech Center 2800 • Art Units: 2852

This examiner grants 96% of resolved cases

Performance Statistics

95.8%
Allow Rate
+27.8% vs TC avg
1,579
Total Applications
+4.4%
Interview Lift
531
Avg Prosecution Days
Based on 1571 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
33.1%
§102 Novelty
37.8%
§103 Obviousness
19.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19256372 IMAGE-FORMING APPARATUS INCLUDING MECHANISM FOR OPENING AND CLOSING SHUTTER OF ATTACHED DRUM CARTRIDGE IN INTERLOCKING RELATION TO OPENING AND CLOSING MOVEMENT OF COVER Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19239557 DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE MOVABLE RELATIVE TO DRUM FRAME Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19219603 IMAGE FORMATION DEVICE Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19214885 METHOD FOR REMOVING AND ATTACHING FIRST HOLDER MEMBER RELATIVE TO SECOND HOLDER MEMBER SUPPORTED BY HOUSING IN CARTRIDGE Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19188418 IMAGE FORMING APPARATUS WITH CALIBRATION FUNCTION Non-Final OA KYOCERA Document Solutions Inc.
19285193 IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19240176 DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLYING SYSTEM Non-Final OA CANON KABUSHIKI KAISHA
19226976 IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM Non-Final OA CANON KABUSHIKI KAISHA
19213032 IMAGE FORMING APPARATUS, COMPONENT UNIT OF THE IMAGE FORMING APPARATUS, AND PROCESSING APPARATUS FOR THE COMPONENT UNIT Non-Final OA CANON KABUSHIKI KAISHA
19198512 IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19171733 CONTAINER AND INSPECTION METHOD Non-Final OA CANON KABUSHIKI KAISHA
19037549 IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
18757938 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19199373 IMAGE FORMING APPARATUS Non-Final OA FUJIFILM Business Innovation Corp.

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