Prosecution Insights
Last updated: October 27, 2026

Andrew S Rosenthal, USPTO Patent Examiner

Listed by the USPTO as ROSENTHAL, ANDREW S

Tech Center 1700 • Art Units: 1612 1613 1615 1624 1715

This examiner grants 52% of resolved cases

Analysis

ROSENTHAL, ANDREW S works in tech center 1700 and art unit 1612. The profile reports 671 resolved cases, a 51.9% allowance rate, and a median of 1106 days to allowance. The 39.0% interview lift is a strong positive signal and indicates that interviews are associated with improved allowance outcomes.

The listed companies are L'Oréal, Henkel AG & Co. KGaA, and Novartis AG. The listed firms are OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., BakerHostetler, and BOZICEVIC, FIELD & FRANCIS LLP. Applicants should expect substantive prosecution work based on the allowance figure and can give interviews a prominent role when developing a plan to move claims toward allowance.

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

Performance Statistics

51.9%
Allow Rate
-13.1% vs TC avg
726
Total Applications
+39.0%
Interview Lift
1106
Avg Prosecution Days
Based on 671 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
8.2%
§102 Novelty
51.9%
§103 Obviousness
19.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18802089 IMMUNOSUPPRESSANT FORMULATIONS Final Rejection Novartis AG
18869139 CONCENTRATED SOLUTIONS COMPRISING SODIUM 5,10-METHYLENE-(6R)-TETRAHYDROFOLATE Non-Final OA Merck Patent GMBH
18444413 INJECTABLE SLURRIES AND METHODS OF MANUFACTURING AND USING THE SAME Non-Final OA The General Hospital Corporation
17783235 HAIR STYLING COMPOSITION CONTAINING DISACCHARIDES Final Rejection Henkel AG & Co. KGaA
17762674 METHOD FOR DYEING KERATINOUS MATERIAL BY MEANS OF A PREMIX OF AMINOSILICONE AND A CHROMOPHORIC COMPOUND Final Rejection Henkel AG & Co. KGaA
18003744 CANCER RADIOSENSITIZATION BY IN SITU FORMATION OF GOLD NANOPARTICLES AND/OR GOLD NANOCLUSTERS Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18723263 COSMETIC COMPOSITION COMPRISING A POLYHYDROXYALKANOATE COPOLYMER BEARING A(N) (UN)SATURATED HYDROCARBON-BASED CHAIN AND A NATURAL RESIN Non-Final OA L'OREAL
18626294 COMPOSITIONS AND METHODS FOR ALTERING THE COLOR OF HAIR Non-Final OA L'Oreal
15993759 NON-SULFATE CONCENTRATED RINSE-OFF CLEANSING COMPOSITION Final Rejection L'OREAL
18699471 AGENT FOR PREVENTING, TREATING, OR IMPROVING INFLAMMATORY SKIN DISEASE Final Rejection KAO CORPORATION
18357810 MULTIFUNCTIONAL pO2/pH-SENSITIVE THERANOSTIC LIPOSOME NANOCARRIERS AND METHODS OF USING SAME Final Rejection YALE UNIVERSITY
18939930 STABLE INOCULANT COMPOSITIONS AND METHODS FOR PRODUCING SAME Non-Final OA NOVONESIS PLANT BIOSOLUTIONS A/S
18265171 Biliary Delivery Methods, Compositions and Kits for Use Therein Final Rejection Cytotheryx, Inc.

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Frequently Asked Questions

What is examiner Andrew S Rosenthal's allowance rate?

51.9% of resolved applications examined by Andrew S Rosenthal were allowed (671 resolved cases), compared with 40.7% across Art Unit 1612 over the last five years.

Does an interview help with examiner Andrew S Rosenthal?

This examiner's interview lift is +39.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Andrew S Rosenthal take to allow a patent?

Applications allowed by Andrew S Rosenthal took 1,106 days on average from filing to allowance.

Which art unit does examiner Andrew S Rosenthal work in?

Andrew S Rosenthal examines applications in Art Unit 1612 in Tech Center 1700 (Chemistry & Materials).

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