Prosecution Insights
Last updated: October 02, 2026

Examiner: LUDWIG, PETER L

Tech Center 3600 • Art Units: 3627 3687

This examiner grants 35% of resolved cases

Analysis

Peter L. Ludwig serves in Tech Center 3600 and Art Unit 3627. The examiner has 556 resolved cases and an allowance rate of 35.1 percent. This 35.1 percent rate indicates a challenging environment for applicants seeking to secure a patent grant. The median days to allowance for successful applications is 1329, providing a specific timeframe for those who do reach a positive resolution.

The interview lift is 22.7 percent, showing that direct communication is a productive tool. This 22.7 percent increase in the allowance rate after an interview is a significant factor for strategy development. Given the 556 resolved cases, the data suggests that interviews are an effective way to improve outcomes. The 35.1 percent allowance rate is a difficult starting point that is bolstered by these interactions.

In Art Unit 3627, the 1329-day median pendency should be factored into long-term goals. Practitioners can use the 22.7 percent interview lift to help navigate the process more successfully. Peter L. Ludwig's profile highlights the importance of personal engagement in Tech Center 3600 based on the 556 resolved cases.

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

Performance Statistics

35.1%
Allow Rate
-16.9% vs TC avg
613
Total Applications
+22.7%
Interview Lift
1329
Avg Prosecution Days
Based on 556 resolved cases, 2023–2026

Rejection Statute Breakdown

23.9%
§101 Eligibility
12.5%
§102 Novelty
37.7%
§103 Obviousness
25.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18723441 AEROSOL PROVISION DEVICE Non-Final OA Nicoventures Trading Limited
18906048 SYSTEMS AND METHODS FOR PRIORITIZING FRAUD CASES USING ARTIFICIAL INTELLIGENCE Final Rejection Wells Fargo Bank, N.A.
18267186 STORE MOBILE TERMINAL DEVICE, CUSTOMER MOBILE TERMINAL DEVICE, SYSTEM, METHOD, AND RECORDING MEDIUM Final Rejection NEC Corporation
17772405 MODEL TRAINING METHOD, SIGNAL RECOGNITION METHOD, APPARATUS, COMPUTING AND PROCESSING DEVICE, COMPUTER PROGRAM, AND COMPUTER-READABLE MEDIUM Final Rejection BOE Technology Group Co., Ltd.
17977608 INFORMATION PROCESSING SYSTEM AND INTERMEDIARY DEVICE Non-Final OA Toshiba Tec Kabushiki Kaisha
18900281 UPDATING MENUS BASED ON PREDICTED EFFICIENCIES Final Rejection Block, Inc.
18324878 GRAPH-LEARNING NEURAL NETWORKS USING SPECTRAL DATA FOR DETECTION OF DEFECTS IN ADDITIVE MANUFACTURING Final Rejection The Boeing Company
18062570 STANDARDIZED ASSET LOCATION TRACKING Final Rejection The Boeing Company
19411768 COMPUTER IMPLEMENTED PORTABLE ELECTRONIC DEVICE CHARGING AND ACCESS MANAGEMENT METHOD Non-Final OA HomeWAV, LLC
18587643 TECHNIQUES TO PROVIDE PHYSICAL TRANSACTION CARD CAPABILITIES FOR A DEVICE Final Rejection Capital One Services, LLC
19019879 SYSTEM AND METHOD FOR GROUP PAYMENTS Non-Final OA PAYPAL, INC.
18547161 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM Non-Final OA Sony Semiconductor Solutions Corporation
18722572 INBOUND CHEMICAL PRODUCT WITH ENVIRONMENTAL ATTRIBUTES Non-Final OA BASF SE
18646808 Context Recognition-based Apparatus for Interpolating Missing Value of Sensor, and Method therefor Non-Final OA SK Planet Co., Ltd.
19050218 ALGORITHM TO IDENTIFY UNRESOLVED REPORTING ISSUES Final Rejection Truist Bank
18282252 ADAPTIVE TUNING OF PHYSICS-BASED DIGITAL TWINS Non-Final OA Siemens Aktiengesellschaft
18315876 USER INTERFACE-BASED STORAGE MANAGEMENT Non-Final OA SAP SE
18563603 TICKET PROCESSING Non-Final OA Alipay (Hangzhou) Information Technology Co., Ltd.
18991880 PRODUCT INFORMATION MANAGEMENT SERVER, PRODUCT INFORMATION MANAGEMENT METHOD, AND RECORDING MEDIUM Final Rejection Rakuten Group, Inc.
18212629 SYNTHETIC DATASET GENERATOR Final Rejection NVIDIA Corporation
18308012 IDENTIFYING SHORTAGE ITEMS FROM A RETAIL ENVIRONMENT IN ONLINE MARKETPLACES Final Rejection TARGET BRANDS, INC.
18584116 AUTOMATIC ORDERING OF CONSUMABLE ITEMS Non-Final OA eBay Inc.
18447671 QUANTUM LOGIC GATE OPERATION DEVICE, QUANTUM LOGIC GATE OPERATION METHOD AND A NON-TRANSITORY COMPUTER-READABLE MEDIUM Non-Final OA RIKEN
17983042 INTELLIGENT ITEM MANAGEMENT IN AN INFORMATION PROCESSING SYSTEM Non-Final OA Dell Products L.P.
19049872 System and method for determining product theft information using magnetic sensors Non-Final OA 7-Eleven, Inc.
18639512 SYSTEM AND METHOD FOR DETERMINING PRODUCT COUNT OF AN ITEM STORED IN A RACK USING SENSORS Final Rejection 7-Eleven, Inc.
18170727 System and method for electronically associating an item to a rack that stores the item Non-Final OA 7-Eleven, Inc.
18723634 CARTRIDGE AND AEROSOL GENERATING DEVICE INCLUDING THE SAME Non-Final OA KT&G CORPORATION
18079317 SELECTING PICKERS FOR SERVICE REQUESTS BASED ON OUTPUT OF COMPUTER MODEL TRAINED TO PREDICT ACCEPTANCES Final Rejection Maplebear Inc. (dba Instacart)

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