Prosecution Insights
Last updated: October 26, 2026

Charles S Bushey, USPTO Patent Examiner

Listed by the USPTO as BUSHEY, CHARLES S

Tech Center 3700 • Art Units: 1776 1797 3753 3754 3763

This examiner grants 76% of resolved cases

Analysis

BUSHEY, CHARLES S handles matters in USPTO Technology Center 3700 and art unit 1776. The record reports 1019 resolved cases and a 75.7% allowance rate. The median time to allowance is 983 days, which supports planning that accommodates a lengthy examination cycle rather than relying on rapid disposition.

The reported interview lift is 22.2%, giving interviews a meaningful role in the prosecution profile. The listed companies include Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Nanjing Chervon Industry Co., Ltd., and Nippon Shokubai Co., Ltd. Clark+Elbing LLP, Dickinson Wright PLLC - Washington DC, and FisherBroyles, LLP - MAIN CN are the identified firms. Practitioners may find value in pairing technically detailed amendments with direct issue-focused examiner discussions.

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

Performance Statistics

75.7%
Allow Rate
+5.7% vs TC avg
1,051
Total Applications
+22.2%
Interview Lift
983
Avg Prosecution Days
Based on 1019 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
27.3%
§102 Novelty
39.1%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18861856 HUMIDIFICATION ELEMENT AND HUMIDIFIER Non-Final OA DAIKIN INDUSTRIES, LTD.

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Frequently Asked Questions

What is examiner Charles S Bushey's allowance rate?

75.7% of resolved applications examined by Charles S Bushey were allowed (1,019 resolved cases), compared with 57.1% across Art Unit 1776 over the last five years.

Does an interview help with examiner Charles S Bushey?

This examiner's interview lift is +22.2 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 S Bushey take to allow a patent?

Applications allowed by Charles S Bushey took 983 days on average from filing to allowance.

Which art unit does examiner Charles S Bushey work in?

Charles S Bushey examines applications in Art Unit 1776 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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