Prosecution Insights
Last updated: October 02, 2026

Examiner: SOTO, CHRISTOPHER ASHLEY

Tech Center 4100 • Art Units: 1731 1786 3723 4100

This examiner grants 53% of resolved cases

Analysis

Christopher Ashley Soto has resolved 127 cases in Art Unit 1731. The examiner's allowance rate is 52.8 percent. The median time to allowance is 1089 days. These figures are based on the 127 resolved cases currently available in Tech Center 4100.

An interview lift of 27.9 percent is a boost to the 52.8 percent baseline. This 27.9 percent lift suggests that interviews are a productive strategy for this examiner. The 1089-day median pendency provides a benchmark for successful outcomes. Direct communication is a key tool for Art Unit 1731.

The 52.8 percent allowance rate and the 27.9 percent interview lift are the primary metrics for strategy. With 127 resolved cases, the data provides a view of the examiner's tendencies. The 1089-day timeline is a factor for planning.

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

Performance Statistics

52.7%
Allow Rate
-7.3% vs TC avg
181
Total Applications
+27.2%
Interview Lift
1093
Avg Prosecution Days
Based on 129 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
23.0%
§102 Novelty
50.6%
§103 Obviousness
23.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18571603 CLEANER STATION AND CLEANER SYSTEM Final Rejection LG Electronics Inc.
18440747 RETAINER RING MODULE AND CHEMICAL MECHANICAL POLISHING APPARATUS INCLUDING THE SAME Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18238602 ROLLER ASSEMBLY AND VACUUM CLEANER INCLUDING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
19265232 SURFACE CLEANING APPARATUS Non-Final OA Omachron Intellectual Property Inc.
18884954 SURFACE CLEANING APPARATUS Non-Final OA Omachron Intellectual Property Inc.
18630514 WASHER NOZZLE MOUNTING STRUCTURE FOR VEHICLE Final Rejection SUBARU CORPORATION
17864853 QUARTER SHEET SANDER Non-Final OA MILWAUKEE ELECTRIC TOOL CORPORATION
18590126 Wiper Blade Wear Indicator and System Final Rejection Illinois Tool Works Inc.
18720841 PAD CONDITIONING BRUSH Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18441851 METHOD OF INFLATING ELASTIC MEMBRANE OF POLISHING HEAD, AND POLISHING HEAD SYSTEM Final Rejection EBARA CORPORATION
18014506 VACUUM CLEANER Final Rejection Dyson Technology Limited
16949375 POWERED SHARPENER WITH CONTROLLED DEFLECTION OF FLEXIBLE ABRASIVE MEMBER Final Rejection Darex, LLC

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