Prosecution Insights
Last updated: October 02, 2026

Examiner: ZARKA, DAVID PETER

Tech Center 4100 • Art Units: 2449 2472 2618 2624 2669 4100

This examiner grants 82% of resolved cases

Analysis

David Peter Zarka works in Art Unit 2449 of Tech Center 4100. He has 590 resolved cases and an allowance rate of 82.4 percent. This 82.4 percent figure indicates a high probability of success for applicants in this tech center. The median days to allowance is 1135. This 1135-day figure serves as a metric for scheduling and client updates. Practitioners can rely on this duration for successful prosecution in Art Unit 2449.

The interview lift is 13.9 percent. This 13.9 percent lift suggests that even in a favorable environment, interviews can help secure a grant. With 590 resolved cases, the 82.4 percent allowance rate is a supported statistic for this examiner. The lift is a tool for resolving technical issues that may arise. The data from Tech Center 4100 suggests a predictable environment. The 1135-day median is a specific point of reference for the expected timeline of a patent application.

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

Performance Statistics

82.4%
Allow Rate
+22.4% vs TC avg
609
Total Applications
+13.9%
Interview Lift
1135
Avg Prosecution Days
Based on 590 resolved cases, 2023–2026

Rejection Statute Breakdown

12.5%
§101 Eligibility
16.2%
§102 Novelty
42.6%
§103 Obviousness
25.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18506605 Distributed Control System for Industrial Processes, A Method Therein, Computer Program and Computer Program Product Final Rejection ABB Schweiz AG
18952980 SWITCH CONTROLLER, SENDING CONTROLLER AND METHODS FOR USE IN SWITCH CONTROLLER AND SENDING CONTROLLER Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18422825 SYSTEMS, APPARATUS, AND METHODS TO ENABLE DUAL VIRTUAL PRIVATE NETWORK CONNECTIVITY Non-Final OA The Boeing Company
18217484 SYSTEM AND METHOD FOR MICROCODE UPDATE STAGING AND ENUMERATION Non-Final OA INTEL CORPORATION
18852409 NETWORK INITIATED PRIMARY AUTHENTICATION Final Rejection Lenovo (Singapore) Pte. Limited
19183656 CLOUD INFRASTRUCTURE RESOURCES FOR CONNECTING A SERVICE PROVIDER PRIVATE NETWORK TO A CUSTOMER PRIVATE NETWORK Non-Final OA Oracle International Corporation
19043700 Key-Based Aggregation Service Non-Final OA Oracle International Corporation
19027771 METHOD FOR 5G STREAMING BACKGROUND DATA TRANSFER WITH FLEXIBLE TIME SCHEDULE Non-Final OA TENCENT AMERICA LLC
19105287 SYSTEM AND METHOD FOR PERFORMING DEVICE ISOLATION IN AN AUTHENTICATION NETWORK Non-Final OA VISA INTERNATIONAL SERVICE ASSOCIATION
19081658 WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) TO WTRU RELAY MEDIA ACCESS CONTROL (MAC) ACCESS CONFLICT SUPPORT Non-Final OA InterDigital Patent Holdings, Inc.
18707246 DIRECT C2 COMMUNICATIONS SETUP, MODIFICATION, AND REVOCATION Final Rejection InterDigital Patent Holdings, Inc.
19262653 WIRELESS COMMUNICATION METHOD AND COMMUNICATION DEVICE Non-Final OA GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
18786259 PROXY ADDRESS RESOLUTION PROTOCOL SUPPORT IN MULTI-LINK DEVICES Non-Final OA Cisco Technology, Inc.
18756234 Machine Learning-Based Multitenant Server Application Dependency Mapping System Non-Final OA Bank of America Corporation
18788360 AI-BASED SYSTEM FOR ROOT CAUSE ANALYSES OF OPERATIONAL ANOMALIES IN WIRELESS NETWORKS Non-Final OA T-MOBILE INNOVATIONS LLC
18923873 APPARATUSES AND METHODS TO FACILITATE NOTIFICATIONS IN RELATION TO DATA FROM MULTIPLE SOURCES Final Rejection AT&T Intellectual Property II, L.P.
19187003 MULTI-ROLE DEVICES FOR AUTOMATION ENVIRONMENTS Non-Final OA Savant Systems, Inc.
18617706 Web Page Password Capture and Evaluation Non-Final OA SAILPOINT TECHNOLOGIES, 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