Prosecution Insights
Last updated: October 26, 2026

Christopher A Johnson, USPTO Patent Examiner

Listed by the USPTO as JOHNSON, CHRISTOPHER A

Tech Center 2800 • Art Units: 2800 2892 2896 2899

This examiner grants 84% of resolved cases

Analysis

Christopher A. Johnson has resolved 573 cases in Art Unit 2800 of Tech Center 2800. The examiner has an allowance rate of 84.5 percent and a median pendency of 841 days. These statistics indicate the prosecution environment and the probability of success in this docket. The 841 median days to allowance is a metric for timeline planning.

The interview lift is 8.2 percent, providing a benefit for applicants. Top companies include Taiwan Semiconductor Manufacturing Company, Ltd., Samsung Electronics Co., Ltd., and Sony Group Corporation. JCIPRNET, VOLPE KOENIG, and Bayes PLLC are top firms. The examiner's docket is dominated by semiconductor and electronics firms, as shown by the presence of Taiwan Semiconductor Manufacturing Company, Ltd. and Samsung Electronics Co., Ltd. The 84.5 percent allowance rate and 841-day median pendency reflect a consistent examination process. With 573 resolved cases, the data provides a basis for evaluating the impact of the 8.2 percent interview lift.

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

Performance Statistics

84.5%
Allow Rate
+16.5% vs TC avg
608
Total Applications
+8.2%
Interview Lift
841
Avg Prosecution Days
Based on 573 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
22.6%
§102 Novelty
52.9%
§103 Obviousness
20.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18678643 SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18581186 MEMORY DEVICE INCLUDING TWO-DIMENSIONAL MATERIAL Non-Final OA Samsung Electronics Co., Ltd.
18768857 DISPLAY DEVICE Non-Final OA LG Display Co., Ltd.
18686815 LIGHT DETECTION DEVICE AND ELECTRONIC DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18578799 IMAGING APPARATUS AND MANUFACTURING METHOD FOR THE SAME, AND ELECTRONIC EQUIPMENT Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18590303 PACKAGE COMPRISING INTEGRATED DEVICES AND AN INTERCONNECTION DEVICE Non-Final OA QUALCOMM Incorporated
18086232 GLASS SUBSTRATE DEVICE WITH THROUGH GLASS CAVITY Final Rejection Intel Corporation
18619071 SEMICONDUCTOR DEVICE WITH DUAL DAMASCENE AND DUMMY PADS Non-Final OA Micron Technology, Inc.
18568635 SEMICONDUCTOR DEVICE HAVING AN ELECTROSTATICALLY-BOUNDED ACTIVE REGION Final Rejection Microsoft Technology Licensing, LLC
18599876 PILLAR CRITICAL DIMENSION REDUCTION BY ISOTROPIC PLASMA ETCHING WITH HIGH SELECTIVITY TO SILICON-CONTAINING ANTIREFLECTIVE COATING AND SILICON NITRIDE Non-Final OA Tokyo Electron Limited
18649488 GATE CONTACT FORMATION WITH SOURCE/DRAIN CONTACT ISOLATION Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18732896 DUAL FIELD EFFECT TRANSISTOR 4F2 CELL Non-Final OA Applied Materials, Inc.
18599794 Aluminum Oxide Crystallization Barrier for Hybrid Bonding Non-Final OA Applied Materials, Inc.
18666761 METHOD FOR FORMING THERMAL CONDUCTOR MATERIAL FILM AND STACKING STRUCTURE FORMD THEREWITH Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18651321 INTEGRATED CIRCUIT PACKAGES Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18591992 SEMICONDUCTOR DEVICE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18782794 Patterning Semiconductor Devices and Structures Resulting Therefrom Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18599797 ISOLATION STRUCTURES IN SEMICONDUCTOR DEVICES Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.

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Frequently Asked Questions

What is examiner Christopher A Johnson's allowance rate?

84.5% of resolved applications examined by Christopher A Johnson were allowed (573 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Christopher A Johnson?

This examiner's interview lift is +8.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christopher A Johnson take to allow a patent?

Applications allowed by Christopher A Johnson took 841 days on average from filing to allowance.

Which art unit does examiner Christopher A Johnson work in?

Christopher A Johnson examines applications in Art Unit 2800 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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