Prosecution Insights
Last updated: October 02, 2026

Examiner: KOSLOW, CAROL M

Tech Center 3900 • Art Units: 1734 1765 1782 1793 2884 3616 3992

This examiner grants 82% of resolved cases

Analysis

Carol M. Koslow is an examiner in Tech Center 3900 and Art Unit 1734, with 2211 resolved cases on record. Her allowance rate of 81.6 percent indicates a high likelihood of success for applicants. This large volume of 2211 cases provides a stable statistical foundation for predicting prosecution outcomes.

The data shows an interview lift of 12.2 percent. This positive lift suggests that an interview can be a tool to bridge gaps in understanding and move an application toward allowance. When compared to the 81.6 percent base allowance rate, the 12.2 percent lift offers a tactical advantage for practitioners working in Art Unit 1734.

The median days to allowance is 952, which defines the typical duration of the patent acquisition process under her review. This 952-day period is a consideration for applicants planning their intellectual property timelines. Given the 2211 resolved cases, the 81.6 percent allowance rate and the 12.2 percent lift are established benchmarks for this examiner.

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

Performance Statistics

81.6%
Allow Rate
+21.6% vs TC avg
2,230
Total Applications
+12.2%
Interview Lift
952
Avg Prosecution Days
Based on 2211 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
15.5%
§102 Novelty
27.2%
§103 Obviousness
40.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18673606 PHOSPHOR, WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR Non-Final OA SEIKO EPSON CORPORATION
18467747 MAGNETORHEOLOGICAL FLUID AND VIBRATION DAMPING DEVICE Non-Final OA SEIKO EPSON CORPORATION
18774800 QUANTUM DOT AND METHOD FOR PREPARING THE QUANTUM DOT Non-Final OA Samsung Display Co., Ltd.
18809259 SEMICONDUCTOR FILM, PHOTODETECTION ELEMENT, IMAGE SENSOR, AND MANUFACTURING METHOD FOR SEMICONDUCTOR QUANTUM DOT Non-Final OA FUJIFILM Corporation
18809267 SEMICONDUCTOR FILM, PHOTODETECTION ELEMENT, IMAGE SENSOR, DISPERSION LIQUID, AND MANUFACTURING METHOD FOR SEMICONDUCTOR FILM Non-Final OA FUJIFILM Corporation
18792199 DISPERSION LIQUID, MANUFACTURING METHOD FOR QUANTUM DOT FILM, MANUFACTURING METHOD FOR PHOTODETECTION ELEMENT, AND MANUFACTURING METHOD FOR IMAGE SENSOR Non-Final OA FUJIFILM Corporation
18340368 COMPOSITION, MAGNETIC PARTICLE-CONTAINING CURED SUBSTANCE, AND ELECTRONIC COMPONENT Final Rejection FUJIFILM Corporation
18387095 PIEZOELECTRIC MATERIAL COMPOSITION, PIEZOELECTRIC DEVICE, METHOD OF MANUFACTURING THE SAME, AND APPARATUS INCLUDING THE PIEZOELECTRIC DEVICE Final Rejection LG DISPLAY CO., LTD.
18634412 COATED SOFT MAGNETIC MATERIAL AND METHOD OF PRODUCING COATED SOFT MAGNETIC MATERIAL Non-Final OA NICHIA CORPORATION
18634272 COATED MAGNETIC MATERIAL AND METHOD OF PRODUCING COATED MAGNETIC MATERIAL Non-Final OA NICHIA CORPORATION
18537237 ENHANCING PHOTOLUMINESCENCE STOKES-SHIFT OF CARBON DOTS OBTAINED FROM WASTE BIOMASS VIA NITROGEN DOPING Non-Final OA KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
18800594 SEMICONDUCTOR NANOPARTICLES, METHOD FOR PRODUCING SEMICONDUCTOR NANOPARTICLES, AND LIGHT EMITTER Non-Final OA Murata Manufacturing Co., Ltd.
18567945 ELECTROMAGNETIC ABSORBER AND METHOD FOR MANUFACTURING SAME Final Rejection TOHOKU UNIVERSITY
18118631 METHOD OF PREPARING QUANTUM DOT, QUANTOM DOT PREPARED THEREBY, OPTICAL MEMBER INCLUDING THE QUANTUM DOT, AND ELECTRONIC APPARATUS INCLUDING THE QUANTUM DOT Non-Final OA Korea Advanced Institute of Science and Technology
18887277 METHOD OF PRODUCING QUANTUM DOT, QUANTUM DOT PRODUCED BY THE SAME, AND PHOTODEVICE COMPRISING THE QUANTUM DOT Final Rejection RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
18737215 OXONITRIDOBERYLLOSILICATE PHOSPHORS Non-Final OA LUMILEDS LLC
18369468 A3BX5, A2BX4, ABX3, AND AX HALIDE SCINTILLATORS DOPED WITH TRANSITION METAL IONS Final Rejection University of Tennessee Research Foundation
18086585 PIEZOELECTRIC MATERIAL COMPOSITION, METHOD OF MANUFACTURING THE SAME, PIEZOELECTRIC DEVICE, AND APPARATUS INCLUDING THE PIEZOELECTRIC DEVICE Non-Final OA Korea University Research and Business Foundation
18290669 PRODUCT COMPRISING A MINERAL WOOL TO BE BLOWN Non-Final OA SAINT-GOBAIN ISOVER
18643736 QUANTUM EMITTERS AND METHODS THEREOF Non-Final OA University of Maryland, College Park
18844036 Eu-ACTIVATED BETA-SIALON PHOSPHOR PARTICLES, BETA-SIALON PHOSPHOR POWDER, AND LIGHT-EMITTING DEVICE Non-Final OA Denka Company Limited
18688846 FLUORESCENT POWDER AND LIGHT-EMITTING DEVICE Non-Final OA DENKA COMPANY LIMITED
18022701 FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE Non-Final OA DENKA COMPANY LIMITED
18733119 TRANSITION METAL ELEMENT-DOPED GARNET-TYPE ALUMINATE SCINTILLATION MATERIAL WITH HIGH-QUALITY FACTOR AND PREPARATION METHOD AND APPLICATION THEREOF Non-Final OA SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES
18705830 PREPARATION METHOD FOR LOW-LINE-WIDTH W-TYPE HEXAGONAL CRYSTAL SYSTEM MICROWAVE FERRITE MATERIAL Non-Final OA HENGDIAN GROUP DMEGC MAGNETICS CO., LTD
18705947 MICROWAVE FERRITE MATERIAL SUITABLE FOR 5G RADIO FREQUENCY DEVICE AND PREPARATION METHOD THEREFOR Non-Final OA HENGDIAN GROUP DMEGC MAGNETICS CO., LTD
17790116 EXTRUDED FLUORESCENT FILMS Final Rejection UbiQD, Inc.

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