Prosecution Insights
Last updated: October 25, 2026

Harold E Blackwell II, USPTO Patent Examiner

Listed by the USPTO as BLACKWELL II, HAROLD E

Tech Center 2900 • Art Units: 2913 2916

This examiner grants 94% of resolved cases

Analysis

Harold E. Blackwell II is an examiner in Tech Center 2900 and Art Unit 2913. With 383 resolved cases, the examiner has an allowance rate of 94.0 percent. This rate indicates a favorable environment for applicants. The median days to allowance is 738, which is an efficient timeline for reaching a grant. Armac Manufacturing (Brassfounders) Limited is the top company listed in the data.

The interview lift is 2.8 percent. Given the 94.0 percent allowance rate, this modest lift suggests that interviews are not a primary driver of success in this docket. FisherBroyles, LLP - MAIN CN is the top firm mentioned. The 383 resolved cases provide a strong statistical foundation for these metrics. The 738-day median pendency is a standout figure that distinguishes this examiner's performance. For practitioners, the 94.0 percent allowance rate and the 738-day timeline are the most important data points. The 2.8 percent lift indicates that while interviews are possible, the baseline probability of success is already high. Applicants can expect a streamlined prosecution process.

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

Performance Statistics

94.0%
Allow Rate
+34.0% vs TC avg
384
Total Applications
+2.8%
Interview Lift
738
Avg Prosecution Days
Based on 383 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
10.4%
§102 Novelty
2.0%
§103 Obviousness
79.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
35524615 Handle for furniture Non-Final OA Armac Manufacturing (Brassfounders) Limited

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Frequently Asked Questions

What is examiner Harold E Blackwell II's allowance rate?

94.0% of resolved applications examined by Harold E Blackwell II were allowed (383 resolved cases), compared with 94.4% across Art Unit 2913 over the last five years.

Does an interview help with examiner Harold E Blackwell II?

This examiner's interview lift is +2.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Harold E Blackwell II take to allow a patent?

Applications allowed by Harold E Blackwell II took 738 days on average from filing to allowance.

Which art unit does examiner Harold E Blackwell II work in?

Harold E Blackwell II examines applications in Art Unit 2913 in Tech Center 2900.

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