Prosecution Insights
Last updated: October 02, 2026

Examiner: MACFARLANE, STACEY NEE

Tech Center 1600 • Art Units: 1645 1649 1675 1678

This examiner grants 54% of resolved cases

Analysis

Stacey Nee Macfarlane serves as an examiner in Tech Center 1600 and Art Unit 1645. The examiner has handled 839 resolved cases. The allowance rate for these 839 resolved cases is 53.5 percent. This 53.5 percent rate provides a clear indication of the likelihood of securing a patent grant in Art Unit 1645. The median days to allowance for this examiner is 1223, which is the time typically required to reach a successful outcome.

The interview lift is 39.6 percent. This 39.6 percent lift indicates that conducting an interview is associated with an increased probability of allowance. For practitioners, this positive lift suggests that direct communication with the examiner in Tech Center 1600 can be a beneficial strategy. The 1223 median days to allowance reflects the duration of the prosecution process for successful applications.

With 839 resolved cases, the data offers a reliable basis for strategy development. The 53.5 percent allowance rate and the 39.6 percent interview lift are important for evaluating the potential success of an application. Practitioners can use the 1223-day median to advise clients on the expected timeline. These figures provide a comprehensive view of the examiner's historical performance in Art Unit 1645.

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

Performance Statistics

53.5%
Allow Rate
-6.5% vs TC avg
880
Total Applications
+39.6%
Interview Lift
1223
Avg Prosecution Days
Based on 839 resolved cases, 2023–2026

Rejection Statute Breakdown

9.3%
§101 Eligibility
16.6%
§102 Novelty
25.4%
§103 Obviousness
36.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18521870 UNIVERSAL SENSING SYSTEM Non-Final OA Abbott Diabetes Care, Inc
18429055 METHODS OF TREATING CANCER USING PD-1 AXIS BINDING ANTAGONISTS AND MEK INHIBITORS Non-Final OA Genentech, Inc.
18039403 METHODS AND MATERIALS FOR TREATING T CELL CANCERS Non-Final OA The Johns Hopkins University
18284750 Bispecific Molecules and Related Compositions and Methods Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18546141 LOW INTENSITY ULTRASOUND COMBINATION CANCER THERAPIES Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18558689 ELECTROPHYSIOLOGICAL MODIFICATION TO SUPPRESS ARRHYTHMIAS Non-Final OA UNIVERSITY OF WASHINGTON
18269099 ANTIGEN-BINDING MOLECULES WITH IMPROVED CYTOSOL-PENETRATING ACTIVITY Non-Final OA Chugai Seiyaku Kabushiki Kaisha
17345248 INTEGRATED DRUG DISCOVERY PLATFORM FOR INBORN ERROR OF METABOLISM DISORDERS Non-Final OA RAMOT AT TEL-AVIV UNIVERSITY LTD.
18474419 Use of Biomarkers in the Treatment of Fibrotic Conditions with a PDE4B-inhibitor Non-Final OA Boehringer Ingelheim International GmbH
18054285 Compositions Comprising Human Skin Fibroblasts and Amyloid Beta Peptide Final Rejection WEST VIRGINIA UNIVERSITY BOARD OF GOVERNORS ON BEHALF OF WEST VIRGINIA UNIVERSITY
17914598 BETA-ARRESTIN COMPOSITIONS AND ASSOCIATED METHODS Final Rejection Duke University
18017841 PEPTIDE DESIGN AND GALECTIN-3 INHIBITORS Final Rejection City of Hope
17426627 MULTISPECIFIC BINDING PROTEINS Non-Final OA Gritstone bio, Inc.
17066961 FIBROBLAST GROWTH PATTERNS FOR DIAGNOSIS OF ALZHEIMER'S DISEASE Final Rejection WEST VIRGINIA UNIVERSITY
18021211 METHOD FOR DIAGNOSING AND TREATING COGNITIVE IMPAIRMENT AND USE THEREOF Non-Final OA BAO FENG BIOTECH (BEIJING) CO., LTD
17961412 COMPOSITIONS AND METHODS FOR DIAGNOSING AND ASSESSING RHEUMATOID ARTHRITIS USING PROTEIN-ARGININE DEIMINASE 1 (PAD1) AUTOANTIGENS Non-Final OA INOVA DIAGNOSTICS, INC.

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