Prosecution Insights
Last updated: October 27, 2026

Tristan Isaac Evans, USPTO Patent Examiner

Listed by the USPTO as EVANS, TRISTAN ISAAC

Tech Center 3600 • Art Units: 3626 3683

This examiner grants 36% of resolved cases

Analysis

EVANS, TRISTAN ISAAC is assigned to technology center 3600 and art unit 3626. The profile records 62 resolved cases, with an allowance rate of 35.5%, an interview lift of 51.8%, and a median of 1178 days to allowance. The allowance result is limited, while the interview measure is strongly positive within the recorded cases.

The listed companies are Canon Inc., Cilag GmbH International, and Huna Ltda. The associated firms are Condo Roccia Koptiw LLP, Knobbe, Martens, Olson & Bear, LLP, and MH2 TECHNOLOGY LAW GROUP, LLP. The data supports making examiner interviews a central part of prosecution planning, particularly where written exchanges alone may not resolve issues. The median timing also indicates that applicants should anticipate extended prosecution before allowance.

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

Performance Statistics

35.5%
Allow Rate
-16.5% vs TC avg
84
Total Applications
+51.8%
Interview Lift
1178
Avg Prosecution Days
Based on 62 resolved cases, 2023–2026

Rejection Statute Breakdown

42.6%
§101 Eligibility
7.7%
§102 Novelty
39.1%
§103 Obviousness
8.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18191140 MEDICAL INFORMATION PROCESSING SYSTEM, MEDICAL INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM Final Rejection Canon Kabushiki Kaisha
18479461 SMART PACKAGING SYSTEMS WITH NONVOLATILE RESILIENT STORE Final Rejection Cilag GmbH International
19104935 VIRTUAL PROCEDURE MODELING, RISK ASSESSMENT AND PRESENTATION Non-Final OA Medtronic Vascular, Inc.

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Frequently Asked Questions

What is examiner Tristan Isaac Evans's allowance rate?

35.5% of resolved applications examined by Tristan Isaac Evans were allowed (62 resolved cases), compared with 24.6% across Art Unit 3626 over the last five years.

Does an interview help with examiner Tristan Isaac Evans?

This examiner's interview lift is +51.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tristan Isaac Evans take to allow a patent?

Applications allowed by Tristan Isaac Evans took 1,178 days on average from filing to allowance.

Which art unit does examiner Tristan Isaac Evans work in?

Tristan Isaac Evans examines applications in Art Unit 3626 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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