Prosecution Insights
Last updated: October 27, 2026

Charles W Nichols, USPTO Patent Examiner

Listed by the USPTO as NICHOLS, CHARLES W

Tech Center 4100 • Art Units: 3746 3783 4100

This examiner grants 56% of resolved cases

Analysis

Examiner Charles W. Nichols, based in Tech Center 4100 and Art Unit 3746, has processed 369 resolved cases. The allowance rate of 55.8 percent and a median days to allowance of 1479 suggest a more challenging and time-consuming prosecution environment. Applicants should be prepared for a rigorous examination process.

A high interview lift of 54.6 percent indicates that interviews are an exceptionally effective tool for overcoming rejections with this examiner. Top companies include Johnson & Johnson, the Regents of the University of Minnesota, and the United States Department of Veterans Affairs. Legal representation is often provided by BALLARD SPAHR LLP, DEKEL PATENT LTD., DAVID KLEIN, and SEAGER, TUFTE & WICKHEM, LLP.

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

Performance Statistics

55.8%
Allow Rate
-4.2% vs TC avg
406
Total Applications
+54.6%
Interview Lift
1479
Avg Prosecution Days
Based on 369 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
17.5%
§102 Novelty
63.5%
§103 Obviousness
17.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18502774 Needle Assembly With Integrated Curvature Mechanism Non-Final OA United States Government As Represented By The Department Of Veterans Affairs

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Frequently Asked Questions

What is examiner Charles W Nichols's allowance rate?

55.8% of resolved applications examined by Charles W Nichols were allowed (369 resolved cases), compared with 68.0% across Art Unit 3746 over the last five years.

Does an interview help with examiner Charles W Nichols?

This examiner's interview lift is +54.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Charles W Nichols take to allow a patent?

Applications allowed by Charles W Nichols took 1,479 days on average from filing to allowance.

Which art unit does examiner Charles W Nichols work in?

Charles W Nichols examines applications in Art Unit 3746 in Tech Center 4100.

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