Prosecution Insights
Last updated: October 26, 2026

Karen E Toth, USPTO Patent Examiner

Listed by the USPTO as TOTH, KAREN E

Tech Center 3700 • Art Units: 2884 3732 3735 3791 3794

This examiner grants 46% of resolved cases

Analysis

TOTH, KAREN E is assigned to tech center 3700 and art unit 2884. The profile covers 770 resolved cases, with an allowance rate of 46.4% and a median of 1730 days to allowance. The interview lift is 25.8%, indicating that interviews may materially support prosecution, but the allowance and timing data also point to the need for substantial persistence.

Representative companies include Koninklijke Philips N.V., BLINK DEVICE LLC, and Nike Inc. The listed firms are Bookoff McAndrews, PLLC, Meunier Carlin & Curfman LLC, and Amsel IP Law PLLC. These organizations offer reference points for applicants assessing technology fit, prosecution experience, and the operational implications of a lengthy allowance timeline.

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

Performance Statistics

46.4%
Allow Rate
-23.6% vs TC avg
846
Total Applications
+25.8%
Interview Lift
1730
Avg Prosecution Days
Based on 770 resolved cases, 2023–2026

Rejection Statute Breakdown

14.1%
§101 Eligibility
14.3%
§102 Novelty
37.5%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18709392 BIOPSY TOOL Final Rejection INTUITIVE SURGICAL OPERATIONS, INC.
18042074 Physiological Data Collection Method and Apparatus, and Wearable Device Non-Final OA Huawei Technologies Co., Ltd.
18710650 WEIGHT ESTIMATION OF A PATIENT Non-Final OA KONINKLIJKE PHILIPS N.V.
18219231 SAFE VENTILATION IN THE PRESENCE OF RESPIRATORY EFFORT Non-Final OA KONINKLIJKE PHILIPS N.V.
18988527 ALZHEIMER'S DISEASE DIAGNOSIS METHOD AND DIAGNOSIS SYSTEM BASED ON NEURAL POPULATION SIGNAL SYNCHRONIZATION Non-Final OA Seoul National University R&DB Foundation

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Frequently Asked Questions

What is examiner Karen E Toth's allowance rate?

46.4% of resolved applications examined by Karen E Toth were allowed (770 resolved cases), compared with 73.0% across Art Unit 2884 over the last five years.

Does an interview help with examiner Karen E Toth?

This examiner's interview lift is +25.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Karen E Toth take to allow a patent?

Applications allowed by Karen E Toth took 1,730 days on average from filing to allowance.

Which art unit does examiner Karen E Toth work in?

Karen E Toth examines applications in Art Unit 2884 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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