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Home / Examiner: Jennifer Sierra Yosinski
Last updated: October 21, 2026

Jennifer Sierra Yosinski, USPTO Patent Examiner

Listed by the USPTO as YOSINSKI, JENNIFER SIERRA

Tech Center 2900 • Art Units: 2918 2938

This examiner grants 96% of resolved cases

Performance Statistics

95.6%
Allow Rate
+35.6% vs TC avg
91
Total Applications
-0.7%
Interview Lift
759
Avg Prosecution Days
Based on 90 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
24.4%
§102 Novelty
1.7%
§103 Obviousness
59.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
35526554 Office table Non-Final OA 2WorkFromX ApS

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Frequently Asked Questions

What is examiner Jennifer Sierra Yosinski's allowance rate?

95.6% of resolved applications examined by Jennifer Sierra Yosinski were allowed (90 resolved cases), compared with 95.3% across Art Unit 2918 over the last five years.

Does an interview help with examiner Jennifer Sierra Yosinski?

This examiner's interview lift is -0.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jennifer Sierra Yosinski take to allow a patent?

Applications allowed by Jennifer Sierra Yosinski took 759 days on average from filing to allowance.

Which art unit does examiner Jennifer Sierra Yosinski work in?

Jennifer Sierra Yosinski examines applications in Art Unit 2918 in Tech Center 2900.

Data sourced from USPTO Patent File Wrapper (daily) and Office Action Archive (weekly). Analysis generated by IP Author.

Data: USPTO Patent File Wrapper (daily) • Office Action Archive (weekly) • 89M+ prosecution events

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