Prosecution Insights
Last updated: October 02, 2026

Examiner: BORGEEST, CHRISTINA M

Tech Center 1600 • Art Units: 1645 1649 1674 1675

This examiner grants 56% of resolved cases

Analysis

Christina M. Borgeest is an examiner in Tech Center 1600 and Art Unit 1645, having resolved 725 cases. Her allowance rate of 55.6% indicates a more rigorous examination process than some of her peers. The interview lift of 21.4% is significant, suggesting that interviews are a highly effective way to increase the chances of an allowance. This 21.4% lift is a key strategic data point for practitioners facing rejections. The median days to allowance is 1159, which serves as a benchmark for the expected duration of successful prosecution.

With 725 resolved cases, the statistics offer a reliable view of her historical trends. The 55.6% allowance rate suggests a balanced outcome for applications. The interview lift is a practical tool for resolving issues. The 1159-day median provides a clear measure of her docket's pendency. This data from Art Unit 1645 offers valuable insights for managing the patenting process effectively and setting realistic expectations for the time to grant.

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

Performance Statistics

55.6%
Allow Rate
-4.4% vs TC avg
766
Total Applications
+21.4%
Interview Lift
1159
Avg Prosecution Days
Based on 725 resolved cases, 2023–2026

Rejection Statute Breakdown

9.1%
§101 Eligibility
15.1%
§102 Novelty
26.0%
§103 Obviousness
31.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18008324 ACVR1 (ALK2) RECEPTOR INHIBITION TO TREAT NEUROLOGICAL DISEASES Final Rejection The Regents of the University of California
17554713 Anti-CGRP Antibody Formulation Non-Final OA Eli Lilly and Company
18272548 POLYPEPTIDE COMPLEXES WITH IMPROVED STABILITY AND EXPRESSION Non-Final OA WUXI BIOLOGICS IRELAND LIMITED
18177566 COMPOSITIONS AND METHODS FOR CROSSING BLOOD BRAIN BARRIER Non-Final OA California Institute of Technology
18645005 USE OF MULLERIAN INHIBITING SUBSTANCE (MIS) PROTEINS FOR CONTRACEPTION AND OVARIAN RESERVE PRESERVATION Non-Final OA THE GENERAL HOSPITAL CORPORATION
18250107 BRAIN PENETRATING PEPTIDES Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
17926668 Screening method for effective target - E3 ligase combinations Final Rejection UMC Utrecht Holding B.V.
17413772 BIOMARKER COMBINATIONS IN EX VIVO LUNG PERFUSION (EVLP) PERFUSATE Final Rejection UNIVERSITY HEALTH NETWORK
18798878 AFLIBERCEPT ATTRIBUTES AND METHODS OF CHARACTERIZING AND MODIFYING THEREOF Non-Final OA Amgen Inc.
18038053 QUANTIFICATION OF SPERM CENTRIOLE QUALITY Final Rejection The University of Toledo
18511825 RECOMBINANT TIM-4 PROTEIN, CHIMERIC ANTIGEN RECEPTOR (CAR) T CELL DELIVERY SYSTEM AND METHODS OF MAKING AND USING SAME Non-Final OA Duke University
18296763 ADM2 GENE MARKER FOR DIAGNOSIS OR PROGNOSIS PREDICTION OF THYROID CANCER AND USES THEREOF Final Rejection The Industry & Academic Cooperation in Chungnam National University (IAC)
18706717 PEPTIDE HAVING PHYSIOLOGICAL ACTIVITIES AND USE THEREOF Non-Final OA CAREGEN CO., LTD.
18592106 BIOMARKER PAIRS FOR PREDICTING PRETERM BIRTH Non-Final OA Sera Prognostics, Inc.
17945324 METHODS OF USING ACTIVIN RECEPTOR TYPE IIA VARIANTS Non-Final OA Keros Therapeutics, Inc.
18392612 TREATMENT OF THE DEMENTIAS USING BOTULINUM TOXIN Non-Final OA Penland Foundation

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