Prosecution Insights
Last updated: October 26, 2026

Lanny N Ung, USPTO Patent Examiner

Listed by the USPTO as UNG, LANNY N

Tech Center 3600 • Art Units: 2191 2193 2197 3645

This examiner grants 71% of resolved cases

Analysis

UNG, LANNY N has 514 resolved cases in tech center 3600 and art unit 2191. The allowance rate is 71.4%, with an interview lift of 25.8%. The median time to allowance is 1230 days. The profile shows an allowance outcome above two thirds of resolved cases, while interviews are associated with a smaller but still meaningful increase. The median points to a prosecution period exceeding three years.

The recorded companies are Teachers Insurance And Annuity Association Of America, Siemens Aktiengesellschaft, and Microsoft Technology Licensing, LLC. The principal firms are EPSTEIN DRANGEL LLP, Holland & Hart LLP, and MARSHALL, GERSTEIN & BORUN LLP. A practical approach is to prepare for substantive interviews while allowing substantial time for amendments and examination responses.

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

Performance Statistics

71.4%
Allow Rate
+19.4% vs TC avg
538
Total Applications
+25.8%
Interview Lift
1230
Avg Prosecution Days
Based on 514 resolved cases, 2023–2026

Rejection Statute Breakdown

18.8%
§101 Eligibility
18.6%
§102 Novelty
50.3%
§103 Obviousness
7.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18832507 Device Control Method and Apparatus Non-Final OA Siemens Aktiengesellschaft
18490553 MODEL-ASSISTED GENERATION OF VISUALIZATION CODE Non-Final OA Microsoft Technology Licensing, LLC
18667596 COMPILER TO CAUSE INFORMATION INITIALIZATION Final Rejection NVIDIA Corporation
17858947 GIT-BASED DELTA RPM Non-Final OA Red Hat, Inc.
18489453 PROVIDING AUTOMATED APPLICATION FEEDBACK FOR SOFTWARE TESTING Non-Final OA DELL PRODUCTS L.P.

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Frequently Asked Questions

What is examiner Lanny N Ung's allowance rate?

71.4% of resolved applications examined by Lanny N Ung were allowed (514 resolved cases), compared with 75.5% across Art Unit 2191 over the last five years.

Does an interview help with examiner Lanny N Ung?

This examiner's interview lift is +25.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Lanny N Ung take to allow a patent?

Applications allowed by Lanny N Ung took 1,230 days on average from filing to allowance.

Which art unit does examiner Lanny N Ung work in?

Lanny N Ung examines applications in Art Unit 2191 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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