Prosecution Insights
Last updated: October 02, 2026

Examiner: LEE, WILLIAM Y

Tech Center 1600 • Art Units: 1623 1629

This examiner grants 48% of resolved cases

Analysis

William Y Lee, in Tech Center 1600 and Art Unit 1623, has 710 resolved cases. The allowance rate is 47.9 percent. The interview lift is 34.1 percent, which is a significant boost to the probability of success.

The median days to allowance is 1170. This timeline is based on the 710 resolved cases. The 47.9 percent allowance rate is below a majority, but the 34.1 percent interview lift suggests that interviews are very effective.

In Art Unit 1623, the 1170 median days to allowance is a key planning figure. The allowance rate across resolved cases shows a challenging environment. The interview lift is a helpful metric for practitioners to consider when developing their strategy. This data set provides a clear roadmap for improving prosecution outcomes.

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

Performance Statistics

47.9%
Allow Rate
-12.1% vs TC avg
789
Total Applications
+34.1%
Interview Lift
1170
Avg Prosecution Days
Based on 710 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
13.0%
§102 Novelty
44.6%
§103 Obviousness
21.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17727519 Method of Treating Colorectal Cancers Using a PKC Inhibitor Final Rejection UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
18383256 AGENTS AND METHODS FOR PREVENTING AND TREATING SKELETAL MUSCLE DISEASES Non-Final OA The Regents Of the University of California
18567952 PESTICIDALLY ACTIVE DIAZINE-AMIDE COMPOUNDS Non-Final OA SYNGENTA CROP PROTECTION AG
18480409 CDK4/6 INHIBITORS AS A TREATMENT FOR CLONAL HEMATOPOIESIS Non-Final OA Washington University
18201882 MULTIBIOTIC AGENTS AND METHODS OF USING THE SAME Non-Final OA Flagship Pioneering Innovations V, Inc.
18237705 COMPOSITIONS AND METHODS FOR IMPROVED TREATMENT OF PLATINUM-BASED CHEMOTHERAPEUTIC RESISTANT TUMORS Non-Final OA THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
18002433 DIMETHYL SULFONE FOR TREATMENT OF CHRONICALLY HEAT STRESSED POULTRY Final Rejection Evonik Operations GmbH
18291083 SUBSTITUTED PYRIDONE COMPOUNDS USEFUL TO TREAT ORTHOMYXOVIRUS INFECTIONS Non-Final OA NOVARTIS AG
18113981 COMPOSITIONS AND METHODS FOR TREATING NEURODEGENERATIVE DISORDERS Non-Final OA THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
18690228 INK4 TUMOR SUPPRESSOR PROTEINS MEDIATE RESISTANCE TO CDK4/6 KINASE INHIBITORS Non-Final OA SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCH
15516444 ATROPINE SULFATE RAPIDLY-DISINTEGRATING SUBLINGUAL TABLETS AND METHODS FOR USE THEREOF FOR TREATMENT OF ACUTE ORGANOPHOSPHATE TOXICITY Final Rejection University of Sharjah
18400602 NOVEL MKRN1 INHIBITOR AND PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING OBESITY OR FATTY LIVER COMPRISING THE SAME Non-Final OA UIF (University Industry Foundation), Yosei University
18280357 Pelargonic Acid for Use Against Viral Infections Non-Final OA Nutrition Sciences N.V.
17601148 USE OF GINKGO TERPENE LACTONE IN PREPARING DRUG FOR PREVENTING AND/OR TREATING GUILLAIN-BARRE-STROHL SYNDROME Final Rejection CHENGDU BAIYU PHARMACEUTICAL CO., LTD.
17252481 PLASMALOGEN-CONTAINING COMPOSITION Final Rejection MARUDAI FOOD CO., LTD.

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