Prosecution Insights
Last updated: October 27, 2026

Crystol Stewart, USPTO Patent Examiner

Listed by the USPTO as STEWART, CRYSTOL

Tech Center 3600 • Art Units: 3624

This examiner grants 34% of resolved cases

Analysis

STEWART, CRYSTOL works in Tech Center 3600 and Art Unit 3624. The profile reports 321 resolved cases, an allowance rate of 33.6%, and an interview lift of 28.8%. The median time to allowance is 1237 days. The record combines a lower allowance outcome with a positive interview association and a lengthy median timeline, making early prosecution planning important.

The represented companies are Nice Ltd., NEC Corporation, and Volvo Group. The firms are Ahmann Kloke LLP, BakerHostetler, and BUCHANAN, INGERSOLL & ROONEY PC. Applicants may benefit from defining interview objectives early, while preparing for continued written prosecution and the possibility that allowance will require sustained effort.

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

Performance Statistics

33.6%
Allow Rate
-18.4% vs TC avg
367
Total Applications
+28.8%
Interview Lift
1237
Avg Prosecution Days
Based on 321 resolved cases, 2023–2026

Rejection Statute Breakdown

41.2%
§101 Eligibility
7.9%
§102 Novelty
38.4%
§103 Obviousness
10.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19248224 Techniques for Advanced Exascale AI Workflow Synthesis Non-Final OA REGENTS OF THE UNIVERSITY OF MICHIGAN
19151699 PLAN CREATION SYSTEM, PLAN CREATION METHOD, PROGRAM, AND TRAINING DEVICE Non-Final OA NEC Corporation
18334885 DEVICE AND METHOD FOR ENABLING RECURRENT PREPARATION OF A VEHICLE Non-Final OA VOLVO TRUCK CORPORATION
18258364 PLANT OPERATION ASSISTANCE SYSTEM Non-Final OA Mitsubishi Electric Corporation
17962145 SYSTEMS AND METHODS FOR MONITORING CAREGIVER BURNOUT RISK Non-Final OA Hill-Rom Services, Inc.
18058123 OPERATION CONDITION SETTING DEVICE, PEOPLE FLOW PREDICTION DEVICE, OPERATION CONDITION SETTING METHOD, PEOPLE FLOW PREDICTION METHOD, AND PROGRAM Final Rejection MITSUBISHI HEAVY INDUSTRIES, LTD.
18213994 AUTONOMOUS VEHICLE SERVICES Final Rejection WAYMO LLC
19016604 COMPUTER AIDED GENERATIVE TASK SCHEDULING Non-Final OA Autodesk, Inc.
16106817 AUTOMATED ASSESSMENT OF MEDIA CONTENT DESIRABILITY Non-Final OA Disney Enterprises, Inc.
17893150 CONSUMABLE MANAGEMENT SYSTEM, NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM, AND CONSUMABLE MANAGEMENT METHOD Final Rejection FUJIFILM Business Innovation Corp.
17863046 PRIVACY ECOSYSTEM ENVIRONMENTAL IMPACT MONITORING Non-Final OA ALLSTATE INSURANCE COMPANY
18153213 SYSTEMS AND METHODS FOR PREDICTING TRIM DEVICES FOR VEGETATION MANAGEMENT Non-Final OA AIDash Inc.
17751655 RESOURCE PLANNING WITH INCOMPLETE INFORMATION Non-Final OA Jeppesen ForeFlight, Inc.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Crystol Stewart's allowance rate?

33.6% of resolved applications examined by Crystol Stewart were allowed (321 resolved cases), compared with 24.2% across Art Unit 3624 over the last five years.

Does an interview help with examiner Crystol Stewart?

This examiner's interview lift is +28.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Crystol Stewart take to allow a patent?

Applications allowed by Crystol Stewart took 1,237 days on average from filing to allowance.

Which art unit does examiner Crystol Stewart work in?

Crystol Stewart examines applications in Art Unit 3624 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month