Prosecution Insights
Last updated: October 02, 2026

Examiner: BRANDSEN, BENJAMIN MICHAEL

Tech Center 1600 • Art Units: 1623 1658 1693 1699

This examiner grants 60% of resolved cases

Analysis

Benjamin Michael Brandsen serves in Tech Center 1600 and Art Unit 1623. The examiner has a record of 113 resolved cases. These cases result in an allowance rate of 60.2%, which indicates the frequency of grants for applications reaching a final disposition. The median days to allowance is 1264, providing a benchmark for the expected duration of the prosecution cycle. Practitioners can use the 60.2% allowance rate to assess the likelihood of a successful outcome when an application is assigned to this examiner.

The data shows an interview lift of 18.6%. This lift suggests that interviews are an effective tool for communication, potentially improving the 60.2% allowance rate. The 1264-day median to allowance reflects the pace of the examination process in Art Unit 1623. Practitioners should consider these metrics when advising clients on the timeline and probability of grant. The consistency seen across 113 resolved cases offers a predictable environment for patent prosecution.

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

Performance Statistics

60.2%
Allow Rate
At TC average
149
Total Applications
+18.6%
Interview Lift
1264
Avg Prosecution Days
Based on 113 resolved cases, 2023–2026

Rejection Statute Breakdown

4.0%
§101 Eligibility
21.4%
§102 Novelty
35.5%
§103 Obviousness
23.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17772940 AZAPODOPHYLLOTOXIN DERIVATIVES AND METHODS OF TREATING LYMPHOMA AND KIDNEY CANCER Final Rejection The Board of Trustees of the Leland Stanford Junior University
17904907 COMPOSITION AND METHOD TO PREPARE LONG-ACTING INJECTABLE SUSPENSION CONTAINING MULTIPLE CANCER DRUGS Non-Final OA University of Washington
18305840 WATER DISPERSABLE FILM-FORMING COMPOSITION Final Rejection AMOREPACIFIC CORPORATION
18001655 THERAPEUTIC TREATMENT USING PROTEIN KINASE C (PKC) INHIBITORS AND CYTOTOXIC AGENTS Non-Final OA Cambridge Enterprise Limited
17250952 BIODEGRADABLE LIPIDS FOR THE DELIVERY OF ACTIVE AGENTS Non-Final OA ALNYLAM PHARMACEUTICALS, INC.
18572316 4-ETHYNYL-3-HYDROXY-TETRAHYDROFURANYL-ADENINE PHOSPHORAMIDATES AND RELATED COMPOUNDS AND THEIR USE IN TREATING MEDICAL CONDITIONS Non-Final OA ROME THERAPEUTICS, INC.

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