Prosecution Insights
Last updated: October 02, 2026

Examiner: KAHN, RACHEL

Tech Center 1700 • Art Units: 1766 1772 1787 1796

This examiner grants 28% of resolved cases

Analysis

Rachel Kahn is an examiner in Tech Center 1700 and Art Unit 1766, having managed 670 resolved cases. Her allowance rate is 27.9 percent, which is lower than the 1338 median days to allowance when compared numerically. The median days to allowance is 1338, indicating that successful applications often take a significant amount of time to resolve. This combination of a 27.9 percent allowance rate and 1338 median days to allowance across 670 resolved cases signals the examination process in the chemical arts.

The data indicates that interviews are a tool for applicants, providing an interview lift of 17.4 percent. This lift suggests that direct communication can help address the challenges reflected in the 27.9 percent allowance rate. For the 670 resolved cases in Art Unit 1766, the 17.4 percent interview lift and 1338 median days to allowance are critical metrics for practitioners to consider. Leveraging the 17.4 percent interview lift may be a way to improve the probability of success within Tech Center 1700.

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

Performance Statistics

27.9%
Allow Rate
-37.1% vs TC avg
726
Total Applications
+17.4%
Interview Lift
1338
Avg Prosecution Days
Based on 670 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
15.5%
§102 Novelty
48.9%
§103 Obviousness
26.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17343650 ORGANIC ELECTROLUMINESCENCE DEVICE AND AMINE COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE Final Rejection Samsung Display Co., Ltd.
17734800 MAGNETIC MATERIAL FOR A WIRELESS CHARGING SYSTEM AND A METHOD FOR MANUFACTURING SAME Final Rejection KIA CORPORATION
18257173 NEW ALKOXYLATED POLYALKYLENE IMINES OR ALKOXYLATED POLYAMINES Non-Final OA BASF SE
18022530 POLYPHENYLENE SULFONE Final Rejection BASF SE
17915584 RESIN, RESIN PRECURSOR COMPOSITION, COATING COMPOSITION, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, MOLDED ARTICLE, ELECTRONIC DEVICE, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR PRODUCTION METHOD Final Rejection IDEMITSU KOSAN CO.,LTD.
18287392 OXYETHYLENE STRUCTURE-CONTAINING POLYCARBONATE POLYOL AND USE THEREOF Non-Final OA ASAHI KASEI KABUSHIKI KAISHA
18043729 POLYARYLENE ETHER KETONE RESIN Final Rejection ASAHI KASEI KABUSHIKI KAISHA
18005610 METHACRYLIC RESIN COMPOSITION AND MOLDED ARTICLE Non-Final OA ASAHI KASEI KABUSHIKI KAISHA
18215962 IMIDE COMPOSITION AND PRESERVATIVE COMPOSITION COMPRISING THE IMIDE COMPOSITION Final Rejection Aktiebolaget SKF
19062493 PHOTOSENSITIVE COMPOSITION, PHOTOSENSITIVE FILM, LOWER LAYER FILM, METHOD FOR PRODUCING STRUCTURE HAVING PHASE-SEPARATED STRUCTURE, AND COMPOUND Non-Final OA TOKYO OHKA KOGYO CO., LTD.
18688078 ARTICLES COMPRISING COPOLYESTERS PRODUCED WITH GERMANIUM CATALYST Non-Final OA Eastman Chemical Company
18688090 COPOLYESTER BLENDS Non-Final OA Eastman Chemical Company
18688059 COPOLYESTERS PRODUCED WITH GERMANIUM CATALYST Non-Final OA Eastman Chemical Company
18257703 POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC ATOMS Non-Final OA Eastman Chemical Company
18284985 CURABLE RESIN COMPOSITION FOR STEREOLITHOGRAPHY, CURED PRODUCT, AND THREE-DIMENSIONAL OBJECT Non-Final OA DIC Corporation
18553824 FUNCTIONALIZED POLYMERS FOR THE REMOVAL OF SOLUBLE AND INSOLUBLE TRANSITION METALS FROM WATER Non-Final OA BL Technologies, Inc.
17628324 SINGLE SITE CATALYSED MULTIMODAL POLYETHYLENE COMPOSITION Non-Final OA Borealis AG
17291512 STAIN RESISTANT POLYAMIDE POLYMERS OBTAINED VIA HIGH END GROUP TERMINATION Final Rejection AdvanSix Resins & Chemicals LLC
17658657 CONTACT LENS AND MANUFACTURING METHOD THEREOF Non-Final OA PEGAVISION CORPORATION

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