Prosecution Insights
Last updated: October 02, 2026

Examiner: KHAN, AMINA S

Tech Center 3700 • Art Units: 1754 1761 1764 1786 1796 2857 3774

This examiner grants 48% of resolved cases

Analysis

Amina S. Khan is an examiner in Tech Center 3700 and Art Unit 1754, with a large volume of 1039 resolved cases. Her allowance rate is 47.5 percent, which is below the average for many units and indicates a rigorous examination process. The median days to allowance for successful cases is 1207, suggesting a multi-year commitment for applicants.

Despite the 47.5 percent baseline allowance rate, the interview lift is remarkably high at 43.0 percent. This suggests that while written prosecution is difficult, personal engagement is extremely effective. Practitioners should view interviews as an essential component of their strategy when working with this examiner, as they provide a massive increase in the probability of securing an allowance compared to the baseline.

For applicants, the 1207 median days to allowance and the 47.5 percent allowance rate present a challenging path. However, the 43.0 percent interview lift offers a clear solution. Strategy should center on scheduling an interview as early as possible to resolve rejections and move the application toward a grant more efficiently than written responses alone.

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

Performance Statistics

47.5%
Allow Rate
-22.5% vs TC avg
1,096
Total Applications
+43.0%
Interview Lift
1207
Avg Prosecution Days
Based on 1039 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
9.8%
§102 Novelty
64.3%
§103 Obviousness
17.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17898771 Dye Printing Treatment Liquid Composition, Composition Set, Printing Method, And Ink Jet Printing Method Non-Final OA SEIKO EPSON CORPORATION
17851360 Fabric Treatment Final Rejection The Procter & Gamble Company
18043531 RESIN COMPOSITION FOR EASILY DYEABLE SYNTHETIC FIBERS, AND SYNTHETIC FIBER EASILY DYEABLE WITH ACIDIC DYE Final Rejection KANEKA CORPORATION
17273023 METHOD FOR DETERMINING A CORRESPONDENCE BETWEEN HAIR COLORING AGENTS AND HAIR COLORING RESULTS Non-Final OA Henkel AG & Co. KGaA
17699790 WATER-SOLUBLE YELLOW GREEN ABSORBING DYES Non-Final OA Becton, Dickinson and Company
19108219 PHOTOCLEAVAGE OF INDICAN Non-Final OA DANMARKS TEKNISKE UNIVERSITET
18635176 ANTIMICROBIAL COATING COMPOSITION AND METHOD OF USE THEREOF Non-Final OA Nano and Advanced Materials Institute Limited
17768960 POLYMER COMPOSITION FOR COATING A POLYOLEFIN FABRIC SUBSTRATE Final Rejection BOREALIS AG
17624499 Composition for Surface Treatment of Fibers and Fiber Treatment Method Non-Final OA Beijing University of Chemical Technology
18003148 METHODS FOR PREPARATION OF KERATIN FIBER COLOR COATINGS WITH A SILICONE AZA MICHAEL COMPOSITION Non-Final OA Juergen Karl Anton SCHATZ

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