Prosecution Insights
Last updated: October 05, 2026

Amy C Wierenga, USPTO Patent Examiner

Listed by the USPTO as WIERENGA, AMY C

Tech Center 2900 • Art Units: 2914 2919 2925 2938

This examiner grants 97% of resolved cases

Performance Statistics

96.8%
Allow Rate
+36.8% vs TC avg
508
Total Applications
-1.5%
Interview Lift
641
Avg Prosecution Days
Based on 507 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
3.5%
§102 Novelty
8.0%
§103 Obviousness
78.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
35526851 Base unit for household drink dispenser Non-Final OA Fujian EastWest Lifewit Technology Co., LTD.

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Frequently Asked Questions

What is examiner Amy C Wierenga's allowance rate?

96.8% of resolved applications examined by Amy C Wierenga were allowed (507 resolved cases), compared with 94.1% across Art Unit 2914 over the last five years.

Does an interview help with examiner Amy C Wierenga?

This examiner's interview lift is -1.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Amy C Wierenga take to allow a patent?

Applications allowed by Amy C Wierenga took 641 days on average from filing to allowance.

Which art unit does examiner Amy C Wierenga work in?

Amy C Wierenga examines applications in Art Unit 2914 in Tech Center 2900.

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