Prosecution Insights
Last updated: October 02, 2026

Examiner: WEBB, WALTER E

Tech Center 1600 • Art Units: 1600 1612 1658

This examiner grants 46% of resolved cases

Analysis

Walter E. Webb is an examiner in Tech Center 1600 and Art Unit 1600. The examiner has a volume of 1004 resolved cases. The allowance rate is 46.3 percent, which indicates that nearly half of the applications result in a patent grant. This volume of data provides a statistically significant basis for evaluating the examiner's historical performance and setting expectations for future prosecution outcomes.

The interview lift is 18.8 percent. This figure suggests that conducting an interview is a useful strategy for improving the probability of an allowance. The data indicates that direct communication can help resolve issues and move cases toward a grant. Additionally, the median days to allowance is 1215. This duration reflects the typical timeframe for the prosecution process to reach completion. Practitioners can use this figure to manage client expectations and plan for the time required to secure a patent.

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

Performance Statistics

46.3%
Allow Rate
-13.7% vs TC avg
1,053
Total Applications
+18.8%
Interview Lift
1215
Avg Prosecution Days
Based on 1004 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
14.5%
§102 Novelty
52.2%
§103 Obviousness
16.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18941686 METHOD OF TREATING TEETH USING AN ORAL CARE ARTICLE COMPRISING A DELIVERY CARRIER AND SOLID HYDROPHILIC PARTICLES Non-Final OA The Procter & Gamble Company
18886278 Oral Care Compositions With Anticaries Activity Non-Final OA The Procter & Gamble Company
18788266 Fluoride-Free Anticavity Oral Care Compositions Non-Final OA The Procter & Gamble Company
18713364 METHOD OF PREPARING BIODEGRADABLE MICROCAPSULES BASED ON GELATINE Final Rejection SYNGENTA CROP PROTECTION AG
18640956 CONDUCTIVE ELASTOMER FOR BLADDER REGENERATION Non-Final OA Northwestern University
18884334 SOLUBLE FIBER LOZENGE Non-Final OA Altria Client Services LLC
18734661 COSMETIC COMPOSITION INCLUDING AN ALOE-TREATED COLORANT Final Rejection L'OREAL
18258011 DYEING COMPOSITION BASED ON 2-GAMMA-HYDROXYPROPYL-PARA-PHENYLENEDIAMINE AND ON A PHOSPHORIC SURFACTANT Final Rejection L'Oreal
18266900 PROCESS FOR LIGHTENING KERATIN FIBRES Non-Final OA L'OREAL
19044040 Peroxymonosulfate Whitening Strips Non-Final OA Colgate-Palmolive Company
19011108 Oral Care Compositions and Methods of Use Non-Final OA Colgate-Palmolive Company
18808749 Metal Salt Compositions Non-Final OA Colgate-Palmolive Company
18354302 COMPOSITIONS AND RELATED METHODS Non-Final OA Colgate-Palmolive Company
18256515 Oral Care Compositions with a Natural Sweetener System Final Rejection Colgate-Palmolive Company
18109223 Oral Care Compositions Final Rejection Colgate-Palmolive Company
18006482 Inhibitors of the Artemin Pathway for Treatment of Cancer Final Rejection The University of Chicago
18643489 Oral Health Composition Comprising Purified Biosurfactants and/or Their Derivatives Final Rejection Locus Solutions IPCo, LLC
18294373 DEODORANT COMPOSITIONS Final Rejection Conopco, Inc., d/b/a UNILEVER
18032094 CELLULAR MEMBRANE VESICLES AND USES THEREOF Non-Final OA University of Delaware
18413349 OSIMERTINIB FOR USE IN THE TREATMENT OF NON-SMALL CELL LUNG CANCER Final Rejection ASTRAZENECA AB
18293248 COSMETIC COMPOSITION Non-Final OA KAO CORPORATION
18019634 2-((4S)-6-(4-CHLOROPHENYL)-1-METHYL-4H-BENZO[C]ISOXAZOLO[4,5-E]AZEPIN-4-YL)ACETAMIDE FOR TREATING THROMBOCYTHEMIA Non-Final OA Constellation Pharmaceuticals, Inc.
18367118 METHOD FOR IMPROVING THE PHARMACEUTIC PROPERTIES OF MICROPARTICLES COMPRISING DIKETOPIPERAZINE AND AN ACTIVE AGENT Non-Final OA MannKind Corporation
18928260 WOUND CLEANSING METHOD Non-Final OA OSARTIS GmbH
18005425 COOLING SENSATION COMPOSITIONS Final Rejection GIVAUDAN SA
18271583 EXOSOMES COMPRISING IL-35 OR IL-27 AND USES THEREOF Final Rejection The United States of America,as represented by the Secretary,Department of Health and Human Services

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