Prosecution Insights
Last updated: October 26, 2026

Kristina M Hellman, USPTO Patent Examiner

Listed by the USPTO as HELLMAN, KRISTINA M

Tech Center 1600 • Art Units: 1654 1658 1675

This examiner grants 65% of resolved cases

Analysis

HELLMAN, KRISTINA M is assigned to tech center 1600 and art unit 1654. The record includes 722 resolved cases and reports an allowance rate of 65.1%. The median time to allowance is 918 days. Interviews are associated with a 55.5% lift, making examiner interaction the most prominent prosecution signal in the profile.

The represented companies are Novo Nordisk A/S, Character Biosciences Inc., and Mayo Foundation for Medical Education and Research. The listed firms are ARRIGO, LEE, GUTTMAN & MOUTA-BELLUM LLP, BALLARD SPAHR LLP, and Carlson, Caspers, Vandenburgh & Lindquist, P.A. Practitioners may give interviews a central role, using them to identify workable claim distinctions and guide focused follow-up responses.

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

Performance Statistics

65.1%
Allow Rate
+5.1% vs TC avg
767
Total Applications
+55.5%
Interview Lift
918
Avg Prosecution Days
Based on 722 resolved cases, 2023–2026

Rejection Statute Breakdown

5.6%
§101 Eligibility
12.7%
§102 Novelty
25.0%
§103 Obviousness
37.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18020908 N-ACYL AMINO ACID PRODUCTS AND USES Non-Final OA THE REGENTS OF THE UNIVERSITY OF MICHIGAN
18574665 PEPTIDE HAVING OBESITY AND MUSCLE LOSS INHIBITORY ACTIVITIES, AND USE THEREOF Non-Final OA Korea University Research and Business Foundation
18778049 METHOD OF USING FEATHER KERATIN HYDROLYSATE PEPTIDE SOLUTION (KHP) IN CONTROLLING CABBAGE BLACK SPOT DISEASE Non-Final OA CH Biotech R&D Co., Ltd.
18249816 SYNERGISTIC INDUCTION OF IMMUNITY AGAINST RNA VIRUSES Final Rejection Health Research, Inc.
18695739 PEPTIDE HAVING ANTI-INFLAMMATORY ACTIVITY AND USE THEREOF Non-Final OA CAREGEN CO., LTD.

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Frequently Asked Questions

What is examiner Kristina M Hellman's allowance rate?

65.1% of resolved applications examined by Kristina M Hellman were allowed (722 resolved cases), compared with 48.5% across Art Unit 1654 over the last five years.

Does an interview help with examiner Kristina M Hellman?

This examiner's interview lift is +55.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kristina M Hellman take to allow a patent?

Applications allowed by Kristina M Hellman took 918 days on average from filing to allowance.

Which art unit does examiner Kristina M Hellman work in?

Kristina M Hellman examines applications in Art Unit 1654 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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