Prosecution Insights
Last updated: October 02, 2026

Examiner: ALLEN, SARAH ELIZABETH

Tech Center 1600 • Art Units: 1637 1653

This examiner grants 57% of resolved cases

Analysis

Sarah Elizabeth Allen, working in Tech Center 1600 and Art Unit 1637, has 27 resolved cases. The allowance rate is 55.6 percent, which is a moderate success rate. This 55.6 percent rate indicates that more than half of the 27 cases result in a patent grant. Practitioners should expect a balanced examination process.

The interview lift is 50.0 percent, indicating that interviews are highly effective at resolving rejections. The median days to allowance is 1291, which is a long duration for reaching a grant. Practitioners should use interviews to capitalize on the 50.0 percent lift and improve the 55.6 percent allowance rate. The 1291-day timeline should be factored into the prosecution strategy. These metrics show that while the process is slow, direct communication with the examiner is a very successful tactic for securing a patent grant.

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

Performance Statistics

57.1%
Allow Rate
-2.9% vs TC avg
87
Total Applications
+50.0%
Interview Lift
1292
Avg Prosecution Days
Based on 28 resolved cases, 2023–2026

Rejection Statute Breakdown

6.5%
§101 Eligibility
12.4%
§102 Novelty
36.2%
§103 Obviousness
26.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17763716 METHODS AND SYSTEMS FOR PREPARING A NUCLEIC ACID CONSTRUCT FOR SINGLE MOLECULE CHARACTERISATION Non-Final OA Oxford Nanopore Technologies PLC
17980883 METHODS OF GENOME EDITING INCLUDING CONTROLLED OPENING OF CHROMATIN Final Rejection Wisconsin Alumni Research Foundation
18271832 RIBOZYME-ACTIVATED RNA CONSTRUCTS AND USES THEREOF Non-Final OA The Regents of the University of California
17604128 PROTEIN TRANSLATIONAL CONTROL Final Rejection The Regents of the University of California
18485930 RESCUE STRATEGIES FOR BEST1 LOSS- AND GAIN-OF-FUNCTION MUTATIONS Non-Final OA University of Rochester
18028183 PRIME EDITING GUIDE RNAS, COMPOSITIONS THEREOF, AND METHODS OF USING THE SAME Final Rejection President and Fellows of Harvard College
17905457 RNA-GUIDED GENOME RECOMBINEERING AT KILOBASE SCALE Final Rejection The Board of Trustees of the Leland Stanford Junior University
18047685 GENOMIC EDITING WITH SITE-SPECIFIC RETROTRANSPOSONS Non-Final OA Massachusetts Institute of Technology
18269846 CHEMICAL SUBSTANCE EVALUATION SYSTEM USING MULTICOLOR LIGHT-EMITTING CELLS Non-Final OA TOHOKU UNIVERSITY
18563790 CORRECTION OF DUCHENNE MUSCULAR DYSTROPHY MUTATIONS WITH ALL-IN-ONE ADENO-ASSOCIATED VIRUS-DELIVERED SINGLE-CUT CRISPR Non-Final OA The Board of Regents of The University of Texas System
18459548 ACYCLIC THREONINOL NUCLEIC ACID Non-Final OA AGC Inc.
17717697 GENE EDITING TO CORRECT ANEUPLOIDIES AND FRAME SHIFT MUTATIONS Final Rejection The Trustees of Columbia University in the City of New York
17997312 MODIFIED NUCLEIC ACIDS ENCODING ASPARTOACYLASE (ASPA) AND VECTOR FOR GENE THERAPY Non-Final OA Pfizer Inc.
18709415 GENE THERAPY FOR TREATMENT OF MUCOPOLYSACCHARIDOSIS IIIA Non-Final OA The Trustees of the University of Pennsylvania
17917333 COMPOSITIONS AND METHODS FOR IMPROVED SITE-SPECIFIC MODIFICATION Non-Final OA ASTRAZENECA AB
18556180 REDIRECTING RISC FOR RNA EDITING Non-Final OA ALNYLAM PHARMACEUTICALS, INC.
17668413 SMALL RIBOSOMAL PROTEIN SUBUNIT 25 (RPS25) iRNA AGENT COMPOSITIONS AND METHODS OF USE THEREOF Final Rejection Alnylam Pharmaceuticals, Inc.
18486146 M6A-COUPLED EFFECTOR PROTEIN EXPRESSION SYSTEM AND METHODS OF MAKING AND USING SAME Non-Final OA Duke University
17635298 EXTRACELLULAR VESICLES WITH ANTISENSE OLIGONUCLEOTIDES TARGETING KRAS Non-Final OA LONZA SALES AG
17628881 METHOD FOR REDUCING TOXICITY OF ANTISENSE NUCLEIC ACIDS Final Rejection TOKYO INSTITUTE OF TECHNOLOGY
17817385 HAIRPIN LOOP ENDED SELF-COMPLEMENTARY DOUBLE-STRANDED COVALENTLY CLOSED LINEAR DNA VECTOR, MANUFACTURING SYSTEM AND PROCESS, AND USES OF SAID RESULTING DNA VECTOR Non-Final OA SYTE.bio Inc.

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