Prosecution Insights
Last updated: October 02, 2026

Examiner: WILL, KATHERINE A

Tech Center 4100 • Art Units: 1700 1747 1748 1779 4100

This examiner grants 67% of resolved cases

Analysis

Katherine A. Will is an examiner in Tech Center 4100, Art Unit 1700. Across 473 resolved cases, the examiner has an allowance rate of 67.0%. The median days to allowance for these cases is 1171, providing a timeline for practitioners to expect during prosecution.

The data indicates an interview lift of 20.6%, suggesting that interviews are associated with a significantly higher likelihood of allowance compared to the 67.0% baseline. This 20.6% lift highlights the potential effectiveness of oral advocacy in this examiner's art unit. Practitioners should consider that the 1171 median days to allowance reflects the duration for successful outcomes. In Tech Center 4100, this examiner's specific focus in Art Unit 1700 involves technical subject matter that may contribute to these metrics. Given the 473 resolved cases, the 20.6% interview lift is a relevant metric for strategic planning.

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

Performance Statistics

67.2%
Allow Rate
+7.2% vs TC avg
504
Total Applications
+20.3%
Interview Lift
1171
Avg Prosecution Days
Based on 476 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
22.3%
§102 Novelty
52.6%
§103 Obviousness
18.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18694462 AEROSOL PROVISION SYSTEM Non-Final OA NICOVENTURES TRADING LIMITED
18571602 A BODY OF AEROSOL-GENERATING MATERIAL FOR USE WITH A NON-COMBUSTIBLE AEROSOL PROVISION DEVICE Non-Final OA Nicoventures Trading Limited
18568967 AEROSOL GENERATING DEVICE Final Rejection Nicoventures Trading Limited
18563715 AEROSOL PROVISION DEVICE Final Rejection Nicoventures Trading Limited
18648926 FLUID PERMEABLE HEATER ASSEMBLY AND CARTRIDGE FOR AN AEROSOL-GENERATING SYSTEM Non-Final OA Altria Client Services LLC
18835263 ORAL NICOTINE PRODUCT WITH CHEWABLE CARRIER ELEMENT Non-Final OA Philip Morris Products S.A.
18640896 ELECTRICALLY OPERATED SMOKING DEVICE INCLUDING A SYSTEM FOR IDENTIFYING SMOKING ARTICLES IN THE DEVICE Non-Final OA Philip Morris Products S.A.
18700406 CARTRIDGE WITH LEAKAGE PROTECTION FOR AEROSOL-GENERATING DEVICE Non-Final OA Philip Morris Products S.A.
17904738 AEROSOL-GENERATING ARTICLE WITH IMPROVED CONFIGURATION Non-Final OA Philip Morris Products S.A.
16753852 AEROSOL-GENERATING ARTICLE HAVING MOUTHPIECE WITH UPSTREAM CAVITY Final Rejection PHILIP MORRIS PRODUCTS S.A.
18628823 AEROSOL GENERATION SYSTEM Non-Final OA Japan Tobacco Inc.
18621151 TOBACCO SHEET FOR NON-COMBUSTION HEATING FLAVOR INHALER, NON-COMBUSTION HEATING FLAVOR INHALER, AND NON-COMBUSTION HEATING FLAVOR INHALATION SYSTEM Non-Final OA Japan Tobacco Inc.
18425543 FLAVOR INHALER Non-Final OA Japan Tobacco Inc.
18729991 Inhalation Device Non-Final OA JT International SA
18727928 Aerosol Generating Article Non-Final OA JT International SA
18569873 Generation and Collection of Multiple Substrates for Aerosol Generation Non-Final OA JT International SA
18698266 AEROSOL-GENERATING DEVICE AND OPERATION METHOD THEREOF Non-Final OA KT&G CORPORATION
16976973 CIGARETTE AND AEROSOL GENERATION DEVICE FOR CIGARETTE Final Rejection KT&G CORPORATION
18774982 ATOMIZER, HOUSING THEREFOR AND ELECTRONIC ATOMIZING APPARATUS Non-Final OA SHENZHEN SMOORE TECHNOLOGY LIMITED
18725672 ATOMIZER AND ELECTRONIC ATOMIZATION DEVICE Non-Final OA SHENZHEN FIRST UNION TECHNOLOGY CO., LTD.
18292957 AEROSOL GENERATION DEVICE Non-Final OA SHENZHEN FIRST UNION TECHNOLOGY CO., LTD.
18695336 SMOKING SUBSTITUTE APPARATUS Non-Final OA Imperial Tobacco Limited

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