Prosecution Insights
Last updated: October 26, 2026

Roberts P Culbert, USPTO Patent Examiner

Listed by the USPTO as CULBERT, ROBERTS P

Tech Center 2800 • Art Units: 1716 1724 1743 1792 2812

This examiner grants 82% of resolved cases

Performance Statistics

81.5%
Allow Rate
+13.5% vs TC avg
848
Total Applications
-3.4%
Interview Lift
876
Avg Prosecution Days
Based on 828 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
34.0%
§102 Novelty
44.5%
§103 Obviousness
9.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18640071 FABRICATION OF REFLECTIVE POLYMER WAVEGUIDE MOLD Non-Final OA GOOGLE LLC
18028808 SEMICONDUCTOR DEVICE MANUFACTURING METHOD, AND SEMICONDUCTOR DEVICE Non-Final OA Mitsubishi Electric Corporation
18855160 SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD Non-Final OA Tokyo Electron Limited
18896372 ETCHING METHOD Non-Final OA Hitachi High-Tech Corporation
18971817 MANUFACTURING METHOD OF SEMICONDUCTOR MEMORY DEVICE Non-Final OA SK hynix Inc.
18239037 CRYOGENIC PLASMA ETCHING USING C2H2F2 Final Rejection L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
18239041 DIELECTRIC PLASMA ETCHING USING C2H2F2 Final Rejection L'Air Liquide, Société Anonyme pour L'Etude et l'Exploitation des Procédés Georges Claude
18237628 ALUMINUM OXIDE CARBON HYBRID HARDMASKS AND METHODS FOR MAKING THE SAME Non-Final OA Applied Materials, Inc.
18236042 METHODS OF ETCHING SILICON-AND-OXYGEN-CONTAINING FEATURES AT LOW TEMPERATURES Final Rejection Applied Materials, Inc.
18212314 INCREASED ETCH RATES OF SILICON-CONTAINING MATERIALS Non-Final OA Applied Materials, Inc.

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Frequently Asked Questions

What is examiner Roberts P Culbert's allowance rate?

81.5% of resolved applications examined by Roberts P Culbert were allowed (828 resolved cases), compared with 45.4% across Art Unit 1716 over the last five years.

Does an interview help with examiner Roberts P Culbert?

This examiner's interview lift is -3.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Roberts P Culbert take to allow a patent?

Applications allowed by Roberts P Culbert took 876 days on average from filing to allowance.

Which art unit does examiner Roberts P Culbert work in?

Roberts P Culbert examines applications in Art Unit 1716 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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