Prosecution Insights
Last updated: April 19, 2026

Examiner: GRAY, SUNGHEE Y

Tech Center 2800 • Art Units: 2877 2886

This examiner grants 83% of resolved cases

Performance Statistics

83.4%
Allow Rate
+15.4% vs TC avg
541
Total Applications
+10.6%
Interview Lift
960
Avg Prosecution Days
Based on 523 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
17.4%
§102 Novelty
45.1%
§103 Obviousness
29.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18391824 Adjusted Color Prescriptions for Aqueous Coating Compositions to Correct Gloss Differences Non-Final OA Columbia Insurance Company
18532585 METHODS OF ESTIMATING LINE WIDTH AND SYSTEMS THEREOF Non-Final OA Tokyo Electron Limited
18345335 COMPACT OPTICAL SMOKE DETECTOR SYSTEM AND APPARATUS Final Rejection Analog Devices, Inc.
18036407 OPTICAL-BASED VALIDATION OF ORIENTATIONS OF SURFACES Final Rejection LUMUS LTD.
18231688 Methods And Systems For Scatterometry Based Metrology Of Structures Fabricated On Transparent Substrates Non-Final OA KLA Corporation
18776767 SKID ATTACHMENT Non-Final OA Wyatt Technology, LLC
18078633 OPTICAL DETECTOR, SYSTEMS, AND METHODS Final Rejection Attollo Engineering, LLC
18527829 DARK-FIELD INSPECTION DEVICE WITH REAL TIME VARIABLE FUNCTION Non-Final OA NEXTIN, Inc.
18471124 GAS LEAK EMISSION QUANTIFICATION WITH A GAS CLOUD IMAGER Non-Final OA Rebellion Photonics, Inc.
18280072 MEASURING DEVICE AND METHOD FOR MEASURING OPTICAL ELEMENTS Non-Final OA Dutch United Instruments B.V.
18448182 DETECTION TUBE, DETECTION SYSTEM AND OPTICAL DETECTION METHOD FOR PARAMETER OF TEST SPECIMEN Non-Final OA SKYLA Corporation
18344085 Measurement of Bidirectional Reflectance Distribution Final Rejection DATACOLOR INC.
17782843 WEDGE CHAMBER DEVICE FOR MOUNTING SAMPLES FOR MICROSCOPY Non-Final OA Mizar Imaging, LLC

Facing This Examiner?

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

Build Your Strategy

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