Prosecution Insights
Last updated: October 26, 2026

Timothy Wing Ho Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, TIMOTHY WING HO

Tech Center 2600 • Art Units: 2661 2665 2671

This examiner grants 60% of resolved cases

Analysis

CHOI, TIMOTHY WING HO works in Tech Center 2600 and Art Unit 2661. The dataset includes 340 resolved cases, a 60.0% allowance rate, and a median of 1146 days to allowance. Interviews show a 35.6% lift, indicating a substantial positive association with allowance outcomes.

Siemens Healthineers AG, NVIDIA Corporation, and Robert Bosch GmbH are the listed leading companies. HARNESS, DICKEY & PIERCE, P.L.C., GREENBLUM & BERNSTEIN, P.L.C., and Maginot, Moore & Beck LLP are the listed leading firms. Practitioners may give interviews a significant role in response planning while accounting for the reported pendency.

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

Performance Statistics

60.0%
Allow Rate
-2.0% vs TC avg
369
Total Applications
+35.6%
Interview Lift
1146
Avg Prosecution Days
Based on 340 resolved cases, 2023–2026

Rejection Statute Breakdown

11.0%
§101 Eligibility
6.2%
§102 Novelty
59.8%
§103 Obviousness
16.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19003242 Method and Device for Detecting Indication Signs, Controller, Vehicle, and Medium Non-Final OA Robert Bosch GmbH
18830231 METHOD AND APPARATUS FOR DENOISING A TOMOGRAPHY RECORDING Non-Final OA Siemens Healthineers AG
18171744 METHOD FOR GENERATING TRAINING DATA AND FOR TRAINING A DEEP LEARNING ALGORITHM FOR DETECTION OF A DISEASE INFORMATION, METHOD, SYSTEM AND COMPUTER PROGRAM FOR DETECTION OF A DISEASE INFORMATION Final Rejection Siemens Healthcare GmbH
18830219 IMAGE RECONSTRUCTION USING FREQUENCY DOMAIN PREDICTION FOR IMAGE PROCESSING SYSTEMS AND APPLICATIONS Non-Final OA NVIDIA Corporation
18467123 USING IMAGE AUGMENTATION WITH SIMULATED OBJECTS FOR TRAINING MACHINE LEARNING MODELS IN AUTONOMOUS DRIVING APPLICATIONS Non-Final OA NVIDIA Corporation
18110501 METHOD, ELECTRONIC DEVICE, AND COMPUTER PROGRAM PRODUCT FOR GENERATING SEGMENTED IMAGES Final Rejection Dell Products L.P.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Timothy Wing Ho Choi's allowance rate?

60.0% of resolved applications examined by Timothy Wing Ho Choi were allowed (340 resolved cases), compared with 72.7% across Art Unit 2661 over the last five years.

Does an interview help with examiner Timothy Wing Ho Choi?

This examiner's interview lift is +35.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Timothy Wing Ho Choi take to allow a patent?

Applications allowed by Timothy Wing Ho Choi took 1,146 days on average from filing to allowance.

Which art unit does examiner Timothy Wing Ho Choi work in?

Timothy Wing Ho Choi examines applications in Art Unit 2661 in Tech Center 2600 (Communications).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month