Prosecution Insights
Last updated: October 02, 2026

Examiner: BUCHANAN, BAILEY CHEYENNE

Tech Center 1700 • Art Units: 1682 1758

This examiner grants 43% of resolved cases

Analysis

Bailey Cheyenne Buchanan examines applications in Tech Center 1700 and Art Unit 1682. Her data includes 28 resolved cases, which result in an allowance rate pct of 42.9. This indicates that less than half of the cases she resolves are granted. The median days to allowance for those that are successful is 1369, reflecting the period from filing to the final grant for applications in her unit.

The interview lift pct of 57.1 is a significant factor for strategy. This figure shows that interviews are associated with a large increase in the probability of allowance. In Art Unit 1682, the 57.1 interview lift pct suggests that oral advocacy is one of the most effective tools available to practitioners to overcome the challenges reflected in the 42.9 allowance rate pct.

With 28 resolved cases, the examiner's trends are documented. The 1369 median days to allowance suggests that patience is required during prosecution. However, the 57.1 interview lift pct provides a clear path for improving the 42.9 allowance rate pct, making interviews a critical step for any applicant working within Tech Center 1700. The 1369 median days to allowance serves as the primary timing benchmark.

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

Performance Statistics

42.9%
Allow Rate
-22.1% vs TC avg
87
Total Applications
+57.1%
Interview Lift
1369
Avg Prosecution Days
Based on 28 resolved cases, 2023–2026

Rejection Statute Breakdown

14.3%
§101 Eligibility
16.2%
§102 Novelty
37.1%
§103 Obviousness
23.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18689573 MASTER MIX COMPOSITIONS, KITS, AND METHODS Non-Final OA LIFE TECHNOLOGIES CORPORATION
17559511 METHODS AND COMPOSITIONS FOR ANALYTE DETECTION Non-Final OA 10x Genomics, Inc.
17768786 COMPOSITIONS AND METHODS FOR DIAGNOSING AND TREATING CANCER Non-Final OA The Regents of the University of California
18298922 TRANSMEMBRANE NANOSENSOR ARRAYS FOR RAPID, ULTRA-SENSITIVE AND SPECIFIC DIGITAL QUANTIFICATION OF INTERNAL MICRO-RNA CONTENT OF INTACT EXOSOMES Final Rejection ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
18343097 ASSESSING TRANSPLANT COMPLICATION RISK WITH TOTAL CELL-FREE DNA Final Rejection The Medical College of Wisconsin Inc.
18028432 NUCLEIC ACID NANOSTRUCTURES WITH TUNABLE FUNCTIONAL STABILITY Final Rejection National University of Singapore
18245749 SIGNATURES IN CELL-FREE DNA TO DETECT DISEASE, TRACK TREATMENT RESPONSE, AND INFORM TREATMENT DECISIONS Final Rejection THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
17687536 METHODS AND RELATED ASPECTS FOR ANALYZING MOLECULAR RESPONSE Final Rejection GUARDANT HEALTH, INC.
18002270 MOLECULAR SIGNATURE OF A COMMON ALOPECIC STATE, ASSOCIATED WITH CELL JUNCTIONS Final Rejection L'OREAL
17716381 ENRICHMENT OF CELL-FREE DNA FROM A BIOLOGICAL SAMPLE Non-Final OA MYRIAD WOMEN'S HEALTH, INC.
17780926 UPPER URINARY TRACT UROTHELIAL CARCINOMA IDENTIFICATION METHOD Non-Final OA KEIO UNIVERSITY
18700295 COMPOSITION FOR DIAGNOSING PERIODONTAL DISEASE USING BACTERIAL POPULATION IN SALIVA, AND USE THEREOF Non-Final OA AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
17760652 HUMAN MITOCHONDRIAL DNA SEQUENCING BY TARGETED AMPLIFICATION OF MULTIPLEX PROBES (MTDNA-STAMP) Final Rejection CORNELL UNIVERSITY
17890694 METHODS AND COMPOSITIONS FOR IDENTIFYING AND TREATING SUBJECTS AT RISK OF POOR CANCER SURVIVAL Non-Final OA MEMORIAL SLOAN-KETTERING CANCER CENTER
17632783 CANCER DETECTION AND CLASSIFICATION Final Rejection The United States of America, as represented by the Secretary, Department of Health and Human Servic
17384241 DETECTING CANCER, CANCER TISSUE OF ORIGIN, AND/OR A CANCER CELL TYPE Final Rejection GRAIL, LLC
17624791 DETERMINING INDIVIDUAL HLA PATTERNS, USE AS PROGNOSTICATORS, TARGET GENES AND THERAPEUTIC AGENTS Final Rejection INTELLEXON GMBH

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