Prosecution Insights
Last updated: October 26, 2026

Cheryl Renea Lewis, USPTO Patent Examiner

Listed by the USPTO as LEWIS, CHERYL RENEA

Tech Center 2400 • Art Units: 2151 2154 2155 2166 2167 2492

This examiner grants 93% of resolved cases

Analysis

Cheryl Renea Lewis has 511 resolved cases in Tech Center 2400. She has a very high allowance rate of 92.8 percent. The median time to allowance is 891 days. The interview lift is 7.9 percent, showing a small positive impact from interviews in Art Unit 2151.

Samsung Electronics Co., Ltd. and View Systems Inc. are frequent applicants. Keller Preece PLLC and NSIP LAW are among the top firms. The 92.8 percent allowance rate and 891 median days to allowance suggest an efficient and highly favorable prosecution environment.

With 511 resolved cases, the 92.8 percent allowance rate is exceptionally high. The 7.9 percent interview lift adds to this already strong probability of success. Practitioners can expect a relatively fast 891-day median pendency, making Art Unit 2151 one of the more efficient units for these applicants to navigate.

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

Performance Statistics

92.8%
Allow Rate
+34.8% vs TC avg
524
Total Applications
+7.9%
Interview Lift
891
Avg Prosecution Days
Based on 511 resolved cases, 2023–2026

Rejection Statute Breakdown

22.3%
§101 Eligibility
27.8%
§102 Novelty
28.5%
§103 Obviousness
3.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19340718 METHOD AND APPARATUS FOR DATA GENERATION Non-Final OA Samsung Electronics Co., Ltd.

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Frequently Asked Questions

What is examiner Cheryl Renea Lewis's allowance rate?

92.8% of resolved applications examined by Cheryl Renea Lewis were allowed (511 resolved cases), compared with 81.0% across Art Unit 2151 over the last five years.

Does an interview help with examiner Cheryl Renea Lewis?

This examiner's interview lift is +7.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cheryl Renea Lewis take to allow a patent?

Applications allowed by Cheryl Renea Lewis took 891 days on average from filing to allowance.

Which art unit does examiner Cheryl Renea Lewis work in?

Cheryl Renea Lewis examines applications in Art Unit 2151 in Tech Center 2400 (Networking & Security).

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