Prosecution Insights
Last updated: October 27, 2026

Jonathan Liu, USPTO Patent Examiner

Listed by the USPTO as LIU, JONATHAN

Tech Center 3600 • Art Units: 3631 3673

This examiner grants 32% of resolved cases

Analysis

LIU, JONATHAN is a USPTO patent examiner in Tech Center 3600 and Art Unit 3631. The record includes 345 resolved cases, a 32.5% allowance rate, and a median of 1083 days to allowance. The allowance figure indicates that fewer than half of the recorded matters reached allowance, while the median timing shows that prosecution may continue through an extended examination cycle.

The interview lift is 23.0%, indicating a positive association between interviews and allowance outcomes. The listed companies are Kohlbrat & Bunz, Purple Innovation, and Sennco Solutions. The listed firms are Foley & Lardner, Incubate IP, and Meunier Carlin & Curfman. Practitioners may need a deliberate combination of interview strategy, claim differentiation, and written response detail.

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

Performance Statistics

32.5%
Allow Rate
-19.5% vs TC avg
361
Total Applications
+23.0%
Interview Lift
1083
Avg Prosecution Days
Based on 345 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
20.3%
§102 Novelty
46.1%
§103 Obviousness
27.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18422783 BLANKET, IN PARTICULAR A SUPPORT FOR CONTROLLING THE TEMPERATURE OF LIVING BEINGS Non-Final OA KOHLBRAT & BUNZ Gesellschaft m.b.H.
17259054 HOLDING DEVICE FOR CONTAINERS COMPRISING A FILLING TUBE, AND USE OF SAID DEVICE Final Rejection TECHNOFLEX

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Frequently Asked Questions

What is examiner Jonathan Liu's allowance rate?

32.5% of resolved applications examined by Jonathan Liu were allowed (345 resolved cases), compared with 56.0% across Art Unit 3631 over the last five years.

Does an interview help with examiner Jonathan Liu?

This examiner's interview lift is +23.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jonathan Liu take to allow a patent?

Applications allowed by Jonathan Liu took 1,083 days on average from filing to allowance.

Which art unit does examiner Jonathan Liu work in?

Jonathan Liu examines applications in Art Unit 3631 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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