Prosecution Insights
Last updated: October 27, 2026

Gregory D Clark, USPTO Patent Examiner

Listed by the USPTO as CLARK, GREGORY D

Tech Center 1700 • Art Units: 1786 1794

This examiner grants 85% of resolved cases

Analysis

CLARK, GREGORY D has resolved 1232 cases in Tech Center 1700 and Art Unit 1786. The allowance rate is 84.7%, while the median time to allowance is 1150 days. The large resolved record shows allowance in a substantial majority of cases, although the median prosecution timeline remains extended.

The interview lift is 8.1%, indicating a limited measured association with interviews. The leading companies are UNIVERSAL DISPLAY Corporation, Samsung Display Co., Ltd., and LT Materials Co., Ltd. The leading firms are Duane Morris LLP (UDC), Womble Bond Dickinson US LLP, and BIRCH STEWART KOLASCH & BIRCH, LLP. Counsel may prioritize efficient written prosecution and use interviews for narrowly defined issues.

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

Performance Statistics

84.7%
Allow Rate
+19.7% vs TC avg
1,295
Total Applications
+8.1%
Interview Lift
1150
Avg Prosecution Days
Based on 1232 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
27.6%
§102 Novelty
52.7%
§103 Obviousness
9.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18344055 ORGANOMETALLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME, AND ELECTRONIC APPARATUS INCLUDING THE ORGANIC LIGHT-EMITTING DEVICE Non-Final OA Samsung Electronics Co., Ltd.
17733691 ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT Non-Final OA CANON KABUSHIKI KAISHA
18496801 LIGHT EMITTING ELEMENT AND FUSED POLYCYCLIC COMPOUND FOR THE LIGHT EMITTING ELEMENT Non-Final OA Samsung Display Co., Ltd.
18556629 ORGANIC MOLECULES FOR OPTOELECTRONIC DEVICES Non-Final OA Samsung Display Co., Ltd.
18359503 LIGHT-EMITTING DEVICE INCLUDING ORGANOMETALLIC COMPOUND, ELECTRONIC APPARATUS INCLUDING THE LIGHT-EMITTING DEVICE, AND THE ORGANOMETALLIC COMPOUND Non-Final OA Samsung Display Co., Ltd.
18220751 AMINE-BASED COMPOUND, LIGHT-EMITTING DEVICE INCLUDING THE AMINE-BASED COMPOUND, AND ELECTRONIC DEVICE AND ELECTRONIC APPARATUS EACH INCLUDING THE LIGHT-EMITTING DEVICE Non-Final OA Samsung Display Co., Ltd.
18297290 COMPOSITION, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE INCLUDING LIGHT-EMITTING DEVICE Final Rejection Samsung Display Co., LTD.
18026806 ORGANIC ELECTROLUMINESCENT DEVICE Final Rejection Samsung Display Co., Ltd.
18026813 ORGANIC ELECTROLUMINESCENT DEVICE Final Rejection Samsung Display Co., Ltd.
18095604 ORGANOMETALLIC COMPOUND AND LIGHT-EMITTING DEVICE INCLUDING THE SAME Final Rejection Samsung Display Co., Ltd.
17988637 LIGHT EMITTING ELEMENT AND POLYCYCLIC COMPOUND FOR LIGHT EMITTING ELEMENT Final Rejection Samsung Display Co., Ltd.
17984384 ORGANOMETALLIC COMPOUND, LIGHT-EMITTING DEVICE INCLUDING THE SAME, AND ELECTRONIC APPARATUS INCLUDING THE LIGHT-EMITTING DEVICE Non-Final OA Samsung Display Co., Ltd.
17964436 LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME Final Rejection Samsung Display Co., Ltd.
18016717 Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device Non-Final OA Semiconductor Energy Laboratory Co., Ltd.
18008868 Light-Emitting Device, Display Panel, Light-Emitting Apparatus, Display Device, Electronic Device, and Lighting Device Final Rejection Semiconductor Energy Laboratory Co., Ltd.
18268382 COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE Non-Final OA SAMSUNG SDI CO., LTD.
18568551 COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE Non-Final OA IDEMITSU KOSAN CO.,LTD.
18024685 Light Emitting Device and Composition Final Rejection Sumitomo Chemical Company, Limited
18016815 COMPOSITION AND LIGHT EMITTING DEVICE Non-Final OA Sumitomo Chemical Company, Limited
18449951 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18330377 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18321379 Organic Electroluminescent Materials and Devices Final Rejection Universal Display Corporation
18319182 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA Universal Display Corporation
18135146 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297702 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297752 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297725 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297781 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297735 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION
18297676 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Non-Final OA UNIVERSAL DISPLAY CORPORATION

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Frequently Asked Questions

What is examiner Gregory D Clark's allowance rate?

84.7% of resolved applications examined by Gregory D Clark were allowed (1,232 resolved cases), compared with 47.0% across Art Unit 1786 over the last five years.

Does an interview help with examiner Gregory D Clark?

This examiner's interview lift is +8.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Gregory D Clark take to allow a patent?

Applications allowed by Gregory D Clark took 1,150 days on average from filing to allowance.

Which art unit does examiner Gregory D Clark work in?

Gregory D Clark examines applications in Art Unit 1786 in Tech Center 1700 (Chemistry & Materials).

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