Prosecution Insights
Last updated: October 26, 2026

Fred Tzeng, USPTO Patent Examiner

Listed by the USPTO as TZENG, FRED

Tech Center 2600 • Art Units: 2625 2627 2686 2695

This examiner grants 87% of resolved cases

Analysis

TZENG, FRED is assigned to USPTO technology center 2600 and art unit 2625. The record includes 781 resolved cases and shows an 86.8% allowance rate. The interview lift is 4.0%, and median time to allowance is 923 days.

Top company entries are Magic Leap Inc., LG Display Co., Ltd., and Kabushiki Kaisha Toshiba. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Greenberg Traurig, LLP - Meta Platforms, Inc., and IPro, PLLC. The profile supports planning based on a substantial case record and a relatively limited interview association.

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

Performance Statistics

86.8%
Allow Rate
+24.8% vs TC avg
793
Total Applications
+4.0%
Interview Lift
923
Avg Prosecution Days
Based on 781 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
37.1%
§102 Novelty
29.6%
§103 Obviousness
20.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19056529 GATE DRIVING CIRCUIT AND DISPLAY DEVICE HAVING THE SAME Non-Final OA LG Display Co., Ltd.
18837821 PIXEL CIRCUIT AND DRIVING METHOD THEREFOR, DISPLAY PANEL AND DISPLAY DEVICE Non-Final OA BOE Technology Group Co., Ltd.
19388350 INFORMATION PROCESSING DEVICE Non-Final OA NIKON CORPORATION
18627366 HOLOGRAPHIC OPTICAL ELEMENT VIEWFINDER Final Rejection META PLATFORMS, INC.
19049094 TWO-FUNCTION PUSH TRIGGER Non-Final OA Qorvo US, Inc.

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 Fred Tzeng's allowance rate?

86.8% of resolved applications examined by Fred Tzeng were allowed (781 resolved cases), compared with 66.5% across Art Unit 2625 over the last five years.

Does an interview help with examiner Fred Tzeng?

This examiner's interview lift is +4.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Fred Tzeng take to allow a patent?

Applications allowed by Fred Tzeng took 923 days on average from filing to allowance.

Which art unit does examiner Fred Tzeng work in?

Fred Tzeng examines applications in Art Unit 2625 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