Prosecution Insights
Last updated: October 27, 2026

Long D Pham, USPTO Patent Examiner

Listed by the USPTO as PHAM, LONG D

Tech Center 2600 • Art Units: 2618 2623 2629 2691

This examiner grants 77% of resolved cases

Analysis

PHAM, LONG D is assigned to tech center 2600 and art unit 2618. The record contains 851 resolved cases, a 77.3% allowance rate, and a median of 940 days to allowance. The 15.6% interview lift indicates a meaningful positive association between interviews and allowance outcomes.

Samsung Display Co., Ltd., LG Display Co., Ltd., and Apple Inc. are the leading listed companies. The listed firms are F. CHAU & ASSOCIATES, LLC, HAUPTMAN HAM, LLP, and Innovation Counsel LLP. The established case history supports planning around interviews where disputed issues benefit from direct discussion, while written claim strategy remains central.

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

Performance Statistics

77.3%
Allow Rate
+15.3% vs TC avg
879
Total Applications
+15.6%
Interview Lift
940
Avg Prosecution Days
Based on 851 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
27.5%
§102 Novelty
60.7%
§103 Obviousness
6.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19441681 ACCESSING FUNCTIONS OF EXTERNAL DEVICES USING REALITY INTERFACES Non-Final OA Apple Inc.
19412149 DISPLAY DEVICE Non-Final OA LG Display Co., Ltd.
19380583 GATE DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING A GATE DRIVER Non-Final OA LG Display Co., Ltd.
19406677 PIXEL CIRCUIT, DISPLAY DEVICE AND ELECTRONIC DEVICE Non-Final OA Samsung Display Co., Ltd.
19401730 DUAL MODE DISPLAY DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME Non-Final OA SAMSUNG DISPLAY CO., LTD.
19084544 SCAN DRIVER AND DISPLAY DEVICE INCLUDING THE SAME Non-Final OA Samsung Display Co., LTD.
18804631 DISPLAY DEVICE INCLUDING DEMULTIPLEXER OUTPUTTING TO DIFFERENT COLOR PIXEL COLUMNS Non-Final OA SAMSUNG DISPLAY CO., LTD.
18750003 DISPLAY DEVICE INCLUDING A SWITCHING CIRCUIT FOR SELECTING ONE OF A PLURALITY OF INITIALIZATION VOLTAGES Non-Final OA SAMSUNG DISPLAY CO., LTD.
18666836 DISPLAY DEVICE Non-Final OA Samsung Display Co., Ltd.
18780682 IMAGE DISPLAY APPARATUS HAVING A PLURALITY OF DISPLAY MODES Non-Final OA Sony Interactive Entertainment Inc.
19227669 DISPLAY CONTROL DEVICE, DISPLAY CONTROL METHOD, AND RECORDING MEDIUM IN WHICH DISPLAY CONTROL PROGRAM IS RECORDED Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19250070 ELECTRONIC DEVICE WITH TOUCH CONTROL Final Rejection PIXART IMAGING INC.

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Frequently Asked Questions

What is examiner Long D Pham's allowance rate?

77.3% of resolved applications examined by Long D Pham were allowed (851 resolved cases), compared with 57.3% across Art Unit 2618 over the last five years.

Does an interview help with examiner Long D Pham?

This examiner's interview lift is +15.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Long D Pham take to allow a patent?

Applications allowed by Long D Pham took 940 days on average from filing to allowance.

Which art unit does examiner Long D Pham work in?

Long D Pham examines applications in Art Unit 2618 in Tech Center 2600 (Communications).

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