Prosecution Insights
Last updated: October 02, 2026

Examiner: KHAN, SHER A

Tech Center 2400 • Art Units: 2497

This examiner grants 85% of resolved cases

Analysis

Sher A. Khan is an examiner in Tech Center 2400 and Art Unit 2497. The examiner has 340 resolved cases, which represents a significant volume of work. This large number of cases suggests that the statistical data is based on a broad range of prosecution scenarios. The allowance rate for these cases is 85.3 percent.

The median days to allowance is 871. This 871 days figure provides a clear expectation for the duration of successful patent applications. Practitioners should factor this median into their long term planning when filing in Art Unit 2497. The 85.3 percent allowance rate indicates that the majority of cases handled by this examiner result in a grant.

The interview lift is 23.5 percent. This lift is a notable increase, suggesting that interviews are an effective tool for overcoming rejections and reaching an allowance. Practitioners should prioritize scheduling interviews to take advantage of this 23.5 percent improvement in outcomes. The 340 resolved cases provide a high degree of confidence in these performance metrics.

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

Performance Statistics

85.3%
Allow Rate
+27.3% vs TC avg
349
Total Applications
+23.5%
Interview Lift
871
Avg Prosecution Days
Based on 340 resolved cases, 2023–2026

Rejection Statute Breakdown

16.5%
§101 Eligibility
2.5%
§102 Novelty
48.2%
§103 Obviousness
22.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19048843 SECURE MULTIWAY CALLING Non-Final OA Apple Inc.
18209180 POWER SUPPLY UNIT AUTHENTICATION Non-Final OA Intel Corporation
18955136 PRIVACY KEY AND MESSAGE AUTHENTICATION CODE Non-Final OA Telefonaktiebolaget LM Ericsson (publ)
17634439 DATA SECURITY FOR NETWORK SLICE MANAGEMENT Non-Final OA Nokia Technologies Oy
18829500 Identity Authentication Using Credentials Final Rejection Comcast Cable Communications, LLC
18936291 SYSTEMS AND METHODS FOR DATA INTEGRITY VERIFICATION OF MESSAGES FOR VEHICLE MARSHALING Non-Final OA Ford Global Technologies, LLC
17878135 KEY FOB AUTHENTICATION, RETENTION, AND REVOCATION Final Rejection TEXAS INSTRUMENTS INCORPORATED
17930553 SYSTEMS AND METHODS FOR IMPLEMENTING DATA SECURITY Non-Final OA Motional AD LLC
18895098 BLOCKCHAIN NETWORK IDENTIFIER CLAIMING USING REGISTRATION STATUS REQUESTS Final Rejection Verisign, Inc.
18120177 METHOD AND SYSTEM FOR INTRUSION DETECTION FOR AN IN-VEHICLE INFOTAINMENT SYSTEM Non-Final OA BlackBerry Limited

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