Prosecution Insights
Last updated: October 26, 2026

Cassandra F Cox, USPTO Patent Examiner

Listed by the USPTO as COX, CASSANDRA F

Tech Center 2800 • Art Units: 2813 2815 2816 2836 2842 2849

This examiner grants 94% of resolved cases

Analysis

COX, CASSANDRA F handles matters in Tech Center 2800 and Art Unit 2813. The profile records 843 resolved cases, a 94.4% allowance rate, and a 649-day median to allowance. Interviews show a 3.0% lift, indicating only a limited interview-associated effect in the available data.

The listed companies are Texas Instruments Incorporated, Oxford Quantum Circuits Limited, and NVIDIA Corporation. No leading firms are listed for this examiner. Counsel can rely on the allowance and timing figures for portfolio planning, while using interviews selectively and focusing prosecution resources on clear claim drafting and written responses.

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

Performance Statistics

94.4%
Allow Rate
+26.4% vs TC avg
858
Total Applications
+3.0%
Interview Lift
649
Avg Prosecution Days
Based on 843 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
43.6%
§102 Novelty
23.0%
§103 Obviousness
21.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19065252 SWITCH CONTROLLER WITH ADAPTIVE CONTROL OF REFERENCE AND BACK-GATE VOLTAGES Non-Final OA TEXAS INSTRUMENTS INCORPORATED
19065054 SWITCH CONTROLLER WITH SEESAW DRIVER AND SWITCHING MODE DETECTION Non-Final OA TEXAS INSTRUMENTS INCORPORATED
19193723 TRANSIENT CURRENT-MODE SIGNALING SCHEME FOR ON-CHIP INTERCONNECT FABRICS Non-Final OA NVIDIA Corp.
19254813 CONTROL CIRCUIT FOR A SWITCHING STAGE OF AN ELECTRONIC CONVERTER AND CORRESPONDING CONVERTER DEVICE Non-Final OA STMicroelectronics S.r.I

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Frequently Asked Questions

What is examiner Cassandra F Cox's allowance rate?

94.4% of resolved applications examined by Cassandra F Cox were allowed (843 resolved cases), compared with 80.3% across Art Unit 2813 over the last five years.

Does an interview help with examiner Cassandra F Cox?

This examiner's interview lift is +3.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cassandra F Cox take to allow a patent?

Applications allowed by Cassandra F Cox took 649 days on average from filing to allowance.

Which art unit does examiner Cassandra F Cox work in?

Cassandra F Cox examines applications in Art Unit 2813 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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