Prosecution Insights
Last updated: October 02, 2026

Examiner: KIM, YUNSOO

Tech Center 1600 • Art Units: 1641 1644 1645 1674 1699

This examiner grants 66% of resolved cases

Analysis

Yunsoo Kim is a patent examiner in Tech Center 1600, specifically working within Art Unit 1641. This examiner has overseen 946 resolved cases, which provides a substantial statistical foundation for analyzing their historical prosecution patterns. These 946 resolved cases encompass all applications that have reached a final decision under their review in Art Unit 1641 and Tech Center 1600.

The data reveals an allowance rate of 65.9 percent, which reflects the proportion of applications that are successfully granted. The median days to allowance for these cases is 1323. This duration of 1323 days represents the typical timeline for reaching a favorable outcome. The 65.9 percent allowance rate serves as a primary benchmark for applicants when planning their prosecution strategy.

The interview lift for this examiner is 34.3 percent. This 34.3 percent lift indicates that conducting an interview is associated with an increase in the probability of allowance compared to the baseline rate of 65.9 percent. Given the median days to allowance of 1323, the 34.3 percent interview lift suggests that direct communication with the examiner is a valuable tool for improving the likelihood of a successful grant.

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

Performance Statistics

65.9%
Allow Rate
+5.9% vs TC avg
997
Total Applications
+34.3%
Interview Lift
1323
Avg Prosecution Days
Based on 946 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
16.0%
§102 Novelty
37.5%
§103 Obviousness
22.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18600194 PHARMACEUTICAL COMPOSITIONS OF MOSUNETUZUMAB AND METHODS OF USE Non-Final OA Genentech, Inc.
17542138 METHOD FOR REGENERATION OF AN OVERLOAD CHROMATOGRAPHY COLUMN Final Rejection Genentech, Inc.
19248893 METHODS OF REDUCING PARTICLE FORMATION AND COMPOSITIONS FORMED THEREBY Non-Final OA Regeneron Pharmaceuticals, Inc.
19217541 PROCESS FOR REDUCING SUBVISIBLE PARTICLES IN A PHARMACEUTICAL FORMULATION Non-Final OA Regeneron Pharmaceuticals, Inc.
18592388 ANTI-FEL D1 ANTIBODY FORMULATIONS Non-Final OA Regeneron Pharmaceuticals, Inc.
18105772 Stabilized Formulations Containing Anti-IL-33 Antibodies Non-Final OA Regeneron Pharmaceuticals, Inc.
18444288 PROTEIN SOLUTION FORMULATION CONTAINING HIGH CONCENTRATION OF AN ANTI-VEGF ANTIBODY Non-Final OA NOVARTIS AG
18011412 TYPE 2 CYTOKINES AS PREDICTORS OF DISEASE SEVERITY AND/OR AS THERAPEUTIC TARGETS FOR COVID-19 Non-Final OA University of Virginia Patent Foundation
18300339 PHARMACEUTICAL COMPOSITIONS CONTAINING ANTI-BETA AMYLOID ANTIBODIES Non-Final OA Biogen MA Inc.
18257600 CONJUGATED AFLATOXIN B TO PROTECT AGAINST MYCOTOXICOSIS Final Rejection Intervet Inc.
17335680 Method for the reduction of host cell proteins in affinity chromatography Non-Final OA Hoffmann-La Roche Inc.
18261146 METHODS AND PLATFORMS FOR ELICITING AN IMMUNE RESPONSE IN THE TREATMENT OF CANCER AND COMPOSITIONS AND VACCINES RELATING THERETO Non-Final OA University of Maryland, College Park
17928561 ANTIBODY FORMULATIONS AND USES THEREOF Final Rejection Amgen Inc.
18046450 FORMULATION FOR ANTI-ALPHA4BETA7 ANTIBODY Final Rejection Takeda Pharmaceutical Company Limited
16817671 PLASMA KALLIKREIN INHIBITORS AND USES THEREOF FOR TREATING HEREDITARY ANGIOEDEMA ATTACK Final Rejection Takeda Pharmaceutical Company Limited
18243767 STABILIZED ANTIBODY PROTEIN SOLUTIONS Non-Final OA Arecor Limited
18620109 MULTIPLE FUNCTIONALIZED noMV CONJUGATES Non-Final OA GLAXOSMITHKLINE BIOLOGICALS SA
18287240 AN ANTI-TSLP FAB WITH IMPROVED STABILITY Non-Final OA MEDIMMUNE LIMITED
18176155 HIGHLY CONCENTRATED LOW VISCOSITY MASP-2 INHIBITORY ANTIBODY FORMULATIONS, KITS, AND METHODS Final Rejection Omeros Corporation
16640914 ANTIBODY-DRUG CONJUGATE PREPARATION AND LYOPHILIZATION FOR SAME Final Rejection DAIICHI SANKYO COMPANY, LIMITED

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