Prosecution Insights
Last updated: October 26, 2026

Courtney Guenther Culbert, USPTO Patent Examiner

Listed by the USPTO as CULBERT, COURTNEY GUENTHER

Tech Center 4100 • Art Units: 1747 1748 2831 4100

This examiner grants 28% of resolved cases

Analysis

CULBERT, COURTNEY GUENTHER is assigned to Tech Center 4100 and art unit 1747. The profile contains 54 resolved cases, an allowance rate of 27.8%, and a median of 1349 days to allowance. The interview lift is 4.3%, giving interviews a limited recorded association with allowance outcomes in this data.

The listed companies are Philip Morris International Inc., Nicoventures Trading Limited, and KT&G Corporation. The listed firms are OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., WOMBLE BOND DICKINSON (US) LLP, and MUETING RAASCH GROUP. Because the case history is limited, practitioners should treat the profile as directional and allow for extended prosecution timing when setting expectations.

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

Performance Statistics

27.8%
Allow Rate
-32.2% vs TC avg
116
Total Applications
+4.3%
Interview Lift
1349
Avg Prosecution Days
Based on 54 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
25.2%
§102 Novelty
56.6%
§103 Obviousness
16.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18580361 CONSTITUENT, DERIVATIVE OR EXTRACT OF CANNABIS IN AMORPHOUS FORM Non-Final OA Nicoventures Trading Limited
17997426 AEROSOL GENERATING MATERIAL Final Rejection Nicoventures Trading Limited
17996858 AEROSOLISABLE FORMULATION Non-Final OA NICOVENTURES TRADING LIMITED
17996387 AEROSOL-GENERATING COMPONENTS AND METHODS OF PREPARING THE SAME Final Rejection Nicoventures Trading Limited
17780147 ELECTRONIC AEROSOL PROVISION SYSTEM Final Rejection Nicoventures Trading Limited
17780232 NON-COMBUSTIBLE AEROSOL PROVISION DEVICE AND A METHOD OF HEATING AN AEROSOL-GENERATING MATERIAL Final Rejection Nicoventures Trading Limited
18714720 ECO-FRIENDLY FILTER WITH BIODEGRADABILITY Non-Final OA KOLON INDUSTRIES, INC.
18291430 A Cartridge for a Vapour Generating Device Non-Final OA JT International SA
18012304 Aerosol-Generating Substrate Comprising Granulated Flavoured Particles Non-Final OA JT International SA
17847676 METHODS AND MACHINES FOR POUCHING SMOKELESS TOBACCO AND TOBACCO SUBSTITUTE PRODUCTS Non-Final OA Altria Client Services LLC
18399722 ELECTRONIC CIGARETTE Final Rejection AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
18702513 METHOD OF OPERATING AN AEROSOL-GENERATING SYSTEM Non-Final OA Philip Morris Products S.A.
18579695 AN AEROSOL-GENERATING DEVICE COMPRISING A CLOSURE MEMBER Non-Final OA Philip Morris Products S.A.
18030338 METHOD OF INSPECTION OF ROD SHAPED ARTICLES Final Rejection PHILIP MORRIS PRODUCTS S.A.
17926671 DRUM CONVEYOR AND METHOD TO ROTATE ROD-SHAPED ARTICLES Final Rejection PHILIP MORRIS PRODUCTS S.A.
17789890 EXTRACTION APPARATUS WITH SCREW CONVEYORS FOR TOBACCO MATERIAL Non-Final OA PHILIP MORRIS PRODUCTS S.A.
17785861 A FORMULATION FOR USE IN AN AEROSOL-GENERATING SYSTEM Non-Final OA Philip Morris Products S.A.
17614947 SYSTEM AND METHOD FOR TESTING A HEATING SYSTEM Non-Final OA Philip Morris Products S.A.
17440388 AEROSOL-GENERATING DEVICE AND SYSTEM WITH RESIDUE DETECTOR Final Rejection Philip Morris Products S.A.
17413784 AEROSOL-GENERATING ARTICLE HAVING A VENTILATED CAVITY Final Rejection Philip Morris Products S.A.
18695319 AEROSOL-GENERATING DEVICE Non-Final OA KT&G CORPORATION
18694937 AEROSOL-GENERATING DEVICE Non-Final OA KT&G CORPORATION
18604912 AEROSOL GENERATING DEVICE AND OPERATION METHOD THEREOF Non-Final OA KT&G CORPORATION
18579901 METHOD OF MANUFACTURING CARTRIDGE, CARTRIDGE MANUFACTURED BY THE MANUFACTURING METHOD, AND AEROSOL GENERATING DEVICE COMPRISING THE CARTRIDGE Final Rejection KT&G CORPORATION
18009153 TOBACCO ROD, AEROSOL GENERATING ARTICLE INCLUDING THE SAME, AND AEROSOL GENERATING APPARATUS USED THEREWITH Final Rejection KT&G CORPORATION
17801336 AEROSOL GENERATING DEVICE Final Rejection KT&G CORPORATION
17252058 CIGARETTE Final Rejection KT&G CORPORATION

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Frequently Asked Questions

What is examiner Courtney Guenther Culbert's allowance rate?

27.8% of resolved applications examined by Courtney Guenther Culbert were allowed (54 resolved cases), compared with 38.3% across Art Unit 1747 over the last five years.

Does an interview help with examiner Courtney Guenther Culbert?

This examiner's interview lift is +4.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Courtney Guenther Culbert take to allow a patent?

Applications allowed by Courtney Guenther Culbert took 1,349 days on average from filing to allowance.

Which art unit does examiner Courtney Guenther Culbert work in?

Courtney Guenther Culbert examines applications in Art Unit 1747 in Tech Center 4100.

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