Prosecution Insights
Last updated: October 02, 2026

Examiner: WESTON, ALYSSA G

Tech Center 1700 • Art Units: 1600 1633 1653 1699 1797

This examiner grants 60% of resolved cases

Analysis

Alyssa G. Weston is a patent examiner assigned to Art Unit 1600 within Tech Center 1700. The examiner's professional record includes 111 resolved cases. The data indicates an allowance rate of 59.5% for these applications. This figure serves as a primary indicator of the probability of success for cases on this docket. Additionally, the median days to allowance is 1276, which establishes a specific timeframe for the prosecution process. These metrics offer a foundational understanding of the examiner's approach to patent applications.

The interview lift for this examiner is 51.9%. This 51.9% lift shows the change in the likelihood of allowance when an interview is conducted compared to the 59.5% base rate. With 111 resolved cases, the data provides a view of the examiner's historical performance. The 1276-day median pendency is a key metric for managing client expectations regarding the duration of the patent application process in Tech Center 1700. Practitioners should evaluate the allowance rate and the interview lift to determine the most effective strategy for their specific cases.

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

Performance Statistics

59.8%
Allow Rate
-5.2% vs TC avg
176
Total Applications
+50.9%
Interview Lift
1274
Avg Prosecution Days
Based on 112 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
30.3%
§102 Novelty
33.9%
§103 Obviousness
23.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18626460 RECRUITMENT METHODS AND COMPOUNDS, COMPOSITIONS AND SYSTEMS FOR RECRUITMENT Final Rejection Pairwise Plants Services, Inc.
18382626 CD47 COMPOSITIONS AND METHODS FOR THE TREATMENT OF DEGENERATIVE OCULAR DISEASES Final Rejection President and Fellows of Harvard College
18576909 METHODS FOR DIFFERENTIATING AND SCREENING STEM CELLS Non-Final OA MASSACHUSETTS INSTITUTE OF TECHNOLOGY
19353469 COMPOSITIONS, DEVICES, AND METHODS RELATING TO USE OF AN AMNIOTIC MEMBRANE FETAL TISSUE PRODUCT Final Rejection BioTissue Holdings Inc.
18561889 CHIMERIC ANTIGEN RECEPTOR-MODIFIED GRANULOCYTE-MACROPHAGE PROGENITORS FOR CANCER IMMUNOTHERAPY Non-Final OA University of Southern California
17784935 ENGINEERED IMMUNE CELLS WITH REDUCED TOXICITY AND USES THEREOF Final Rejection The General Hospital Corporation
18006446 METHOD FOR PRODUCING CULTURED MEAT ON BASIS OF CELL SHEET COATING TECHNIQUE, AND CULTURED MEAT PRODUCED THEREBY Non-Final OA Industry-Academic Cooperation Foundation, Yonsei University
18266712 TAU BIOSENSOR CELL LINES Non-Final OA THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
17760245 CYTOTOXIC T CELLS DERIVED FROM HUMAN T CELL-DERIVED IPS CELLS Final Rejection THE UNIVERSITY OF TOKYO
18949699 COMPOSITIONS AND MATERIALS FOR REGENERATION OF SKELETAL MUSCLE Non-Final OA Purdue Research Foundation
17928674 COMPOSITIONS AND METHODS FOR INHIBITION OF LINEAGE SPECIFIC ANTIGENS USING CRISPR-BASED BASE EDITOR SYSTEMS Final Rejection The Trustees of Columbia University in the City of New York
18003705 ENGINEERED MULTICELLULAR ORGANISMS Final Rejection University of Vermont and State Agricultural College
18517066 METHOD FOR INDUCING AND DETECTING SOLUBLE LOX-1 (sLOX-1) IN CULTURED BLOOD CLOTS Non-Final OA GEORGE MASON UNIVERSITY
17602277 METHODS AND COMPOSITIONS FOR PROGRAMMING T CELL DIFFERENTIATION AND ENHANCING T CELL PROLIFERATION Final Rejection THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
18347279 MULTI-LAYER AMNION PRODUCT, RELATED DEVICES, AND RELATED METHODS Final Rejection Axogen Corporation
18792799 METHOD FOR ENHANCING THE SUPPRESSIVE PROPERTIES OF TREG CELLS Non-Final OA UCL BUSINESS LTD.
17053752 MESENCHYMAL STROMAL CELL EXOSOME-TREATED MONOCYTES AND USES THEREOF Non-Final OA Children's Medical Center Corporation
18971862 IMMUNOSUPPRESSIVE ANTIGEN-SPECIFIC CHIMERIC ANTIGEN RECEPTOR TREG CELLS FOR PREVENTION AND/OR TREATMENT OF AUTOIMMUNE AND ALLOIMMUNE DISORDERS Non-Final OA The University of Toledo
18931782 Immunosuppressive Antigen-Specific Chimeric Antigen Receptor Treg Cells for Prevention and/or Treatment of Autoimmune and Alloimmune Disorders Non-Final OA The University of Toledo
18938929 QUALITY CONTROL METHODS FOR AUTOMATED CELL PROCESSING Non-Final OA LONZA WALKERSVILLE, INC.
18323196 QUALITY CONTROL SUBSTANCE USED IN URINE SEDIMENT ANALYZER Final Rejection ARKRAY, Inc.
18731629 ORGANOIDS RELATED TO IMMUNOTHERAPY AND METHODS OF PREPARING AND USING THE SAME Non-Final OA Wake Forest University Health Sciences
18249418 GENERATION OF CD4+ EFFECTOR AND REGULATORY T CELLS FROM HUMAN PLURIPOTENT STEM CELLS Final Rejection Sangamo Therapeutics, Inc.
17912480 ISCHEMIC HEART DISEASE ANIMAL MODEL USING 3-DIMENSIONAL BIOPRINTED OCCLUDE, AND MANUFACTURING METHOD THEREFOR Non-Final OA INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
18571568 METHOD FOR PRODUCING MULTINUCLEATED MEGAKARYOCYTE WITH ENHANCED PLATELET PRODUCTION CAPABILITY, METHOD FOR PRODUCING PLATELETS, METHOD FOR PRODUCING PLATELET PREPARATION, AND METHOD FOR PRODUCING BLOOD PREPARATION Final Rejection Megakaryon Corporation
18037478 EXTRACELLULAR VESICLES DERIVED FROM CARDIOSPHERE-DERIVED CELLS AS ANTI-SHOCK THERAPEUTICS Final Rejection Tiffani C. Chance

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