Prosecution Insights
Last updated: October 27, 2026

Christina M Borgeest, USPTO Patent Examiner

Listed by the USPTO as BORGEEST, CHRISTINA M

Tech Center 1600 • Art Units: 1643 1645 1649 1674 1675

This examiner grants 56% of resolved cases

Analysis

BORGEEST, CHRISTINA M is assigned to tech center 1600 and art unit 1643. The record includes 729 resolved cases and an allowance rate of 55.7%. The median time to allowance is 1160 days, indicating a prolonged prosecution path for matters that reach allowance.

Interviews are associated with a 21.4% lift in the allowance rate. That positive relationship supports considering an interview when the applicant has a focused position on claim scope or cited art. The listed companies are Boehringer Ingelheim International GmbH, Eli Lilly and Company, and THE GENERAL HOSPITAL Corporation. The listed firms are Jones Day, Silvia Salvadori, P.C., and BROWN RUDNICK LLP.

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

Performance Statistics

55.7%
Allow Rate
-4.3% vs TC avg
781
Total Applications
+21.4%
Interview Lift
1160
Avg Prosecution Days
Based on 729 resolved cases, 2023–2026

Rejection Statute Breakdown

9.0%
§101 Eligibility
15.5%
§102 Novelty
25.6%
§103 Obviousness
32.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17759056 MYELOID-DERIVED GROWTH FACTOR FOR USE IN TREATING OR PREVENTING FIBROSIS, HYPERTROPHY OR HEART FAILURE Non-Final OA BOEHRINGER INGELHEIM INTERNATIONAL GMBH
18645005 USE OF MULLERIAN INHIBITING SUBSTANCE (MIS) PROTEINS FOR CONTRACEPTION AND OVARIAN RESERVE PRESERVATION Non-Final OA THE GENERAL HOSPITAL CORPORATION
18008324 ACVR1 (ALK2) RECEPTOR INHIBITION TO TREAT NEUROLOGICAL DISEASES Final Rejection The Regents of the University of California
18177566 COMPOSITIONS AND METHODS FOR CROSSING BLOOD BRAIN BARRIER Non-Final OA California Institute of Technology
18798878 AFLIBERCEPT ATTRIBUTES AND METHODS OF CHARACTERIZING AND MODIFYING THEREOF Non-Final OA Amgen Inc.
18250107 BRAIN PENETRATING PEPTIDES Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18576049 MEANS AND METHODS FOR THE TREATMENT OF CALCIUM CRYSTAL DEPOSITION DISEASES Non-Final OA ACADEMISCH ZIEKENHUIS MAASTRICHT
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

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Frequently Asked Questions

What is examiner Christina M Borgeest's allowance rate?

55.7% of resolved applications examined by Christina M Borgeest were allowed (729 resolved cases), compared with 41.5% across Art Unit 1643 over the last five years.

Does an interview help with examiner Christina M Borgeest?

This examiner's interview lift is +21.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christina M Borgeest take to allow a patent?

Applications allowed by Christina M Borgeest took 1,160 days on average from filing to allowance.

Which art unit does examiner Christina M Borgeest work in?

Christina M Borgeest examines applications in Art Unit 1643 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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