Prosecution Insights
Last updated: October 02, 2026

Examiner: STOCK JR, GORDON J

Tech Center 2800 • Art Units: 2877 2886

This examiner grants 82% of resolved cases

Analysis

Gordon J. Stock Jr is a patent examiner in Tech Center 2800 and Art Unit 2877. He has a record of 962 resolved cases. The examiner maintains an allowance rate of 81.5 percent, which indicates that a majority of applications reach issuance. This percentage suggests that the examination process in this unit frequently results in a grant for the applicant.

The median time to allowance is 864 days. This timeframe provides a clear expectation for the duration of the prosecution cycle, showing that successful applications reach issuance within this median period. This efficiency is a key characteristic of the examiner's historical data and is an important consideration for practitioners managing patent portfolios in Tech Center 2800.

The data also shows an interview lift of 17.5 percent. This metric indicates that the probability of allowance increases when an interview is conducted, even with a base allowance rate of 81.5 percent. With 962 resolved cases, these figures represent a stable set of outcomes for practitioners. The combination of the allowance rate and the median days to allowance defines the typical experience for applicants in Art Unit 2877.

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

Performance Statistics

81.5%
Allow Rate
+13.5% vs TC avg
988
Total Applications
+17.5%
Interview Lift
864
Avg Prosecution Days
Based on 962 resolved cases, 2023–2026

Rejection Statute Breakdown

4.8%
§101 Eligibility
15.3%
§102 Novelty
42.8%
§103 Obviousness
30.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18923191 FLUORESCENCE-CODED MID-INFRARED PHOTOTHERMAL MICROSCOPE Non-Final OA Trustees of Boston University
18893278 FIBER OPTIC LOSS AND LENGTH TEST SYSTEMS AND METHODS WITH EMBEDDED FIBER BRAGS SYSTEMS Non-Final OA AFL Telecommunications LLC
18815266 SPECTROSCOPIC ANALYSIS DEVICE AND SPECTROSCOPIC ANALYSIS METHOD Non-Final OA Yokogawa Electric Corporation
18751577 OPTICAL CENTER AIMING Non-Final OA Ford Global Technologies, LLC
19024459 METHODS AND SYSTEMS OF OPTICAL INSPECTION OF ELECTRONIC DEVICE MANUFACTURING MACHINES Non-Final OA Applied Materials, Inc.
18409900 FLOW CYTOMETER AND SAMPLE MEASUREMENT METHOD Non-Final OA SYSMEX CORPORATION
18412079 MULTIPLE MAGNIFICATION INSPECTION OF DUTS Non-Final OA VIAVI SOLUTIONS INC.
18766377 EVANESCENT FIELD RESONANCE IMAGING MICROSCOPY APPARATUS AND METHOD Non-Final OA The University of Melbourne
18686742 METROLOGY SYSTEM, LITHOGRAPHIC APPARATUS, AND METHOD Non-Final OA ASML Netherlands B.V.
18684391 COMPENSATING OPTICAL SYSTEM FOR NONUNIFORM SURFACES, A METROLOGY SYSTEM, LITHOGRAPHIC APPARATUS, AND METHODS THEREOF Final Rejection ASML Netherlands B.V.
18289765 METROLOGY METHOD AND ASSOCIATED METROLOGY TOOL Non-Final OA ASML NETHERLANDS B.V.
18980276 WAFER ALIGNMENT, CLEANLINESS, AND SURFACE QUALITY VERIFICATION USING LASER LIGHT SCATTERING Non-Final OA Axcelis Technologies, Inc.
19018943 SYSTEM AND METHOD FOR DETERMINING POST BONDING OVERLAY Non-Final OA KLA Corporation
18372531 SYSTEM AND METHOD FOR TRACKING REAL-TIME POSITION FOR SCANNING OVERLAY METROLOGY Non-Final OA KLA Corporation
18467371 ANGLE RESOLVED REFLECTOMETRY FOR THICK FILMS AND HIGH ASPECT RATIO STRUCTURES Non-Final OA KLA Corporation
18462208 METHOD AND APPARATUS FOR SEPARATION OF THE SECOND HARMONIC GENERATION COMPONENTS, THROUGH VARIATION IN THE INPUT PROBING LASER POLARIZATION Final Rejection FemtoMetrix, Inc.
18335485 DIMENSIONAL METROLOGY USING NON-LINEAR OPTICS Non-Final OA FemtoMetrix, Inc.

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