Prosecution Insights
Last updated: October 01, 2026

Examiner: PELLEGRINO, BRIAN E

Tech Center 3700 • Art Units: 3738 3774 3799

This examiner grants 55% of resolved cases

Analysis

Brian E. Pellegrino works in Tech Center 3700 and Art Unit 3738. He has resolved 674 cases, resulting in an allowance rate of 55.2%. This rate shows that a majority of the applications he examines are eventually granted. The median days to allowance for these cases is 1784, which is a notably long duration for the prosecution process.

A significant statistic in his profile is the interview lift of 35.6%. This high lift indicates that conducting an interview is a powerful strategy for improving the chances of an allowance. Practitioners should prioritize requesting an interview to resolve outstanding issues in Art Unit 3738. The 674 resolved cases provide a solid foundation for these observations. The combination of a 55.2% allowance rate and a 35.6% interview lift suggests that while the process may take 1784 days, active engagement with the examiner can significantly boost success. Applicants should be prepared for a longer timeline but can use interviews to their advantage.

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

Performance Statistics

55.2%
Allow Rate
-14.8% vs TC avg
715
Total Applications
+35.6%
Interview Lift
1784
Avg Prosecution Days
Based on 674 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
19.3%
§102 Novelty
45.3%
§103 Obviousness
27.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18675625 STENT INCLUDING ANTI-MIGRATION CAPABILITIES Non-Final OA BOSTON SCIENTIFIC SCIMED, INC.
18460853 POSTERIOR STABILIZED KNEE PROSTHESIS SYSTEM Final Rejection Aesculap AG
18775235 PROSTHETIC VALVE ACTUATOR ATTACHMENT STATUS DETECTION SYSTEM Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18772519 ACTUATION BOLT ASSEMBLY FOR A PROSTHETIC VALVE Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18640973 PROSTHETIC VALVE WITH IMPROVED WASHOUT Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18032386 DEVICES AND METHODS FOR TREATING OCCLUSIONS Final Rejection W. L. Gore & Associates, Inc.
18460795 IN-VIVO INDWELLING STENT AND STENT DELIVERY SYSTEM Final Rejection Terumo Kabushiki Kaisha
18221153 SPACER BLOCKS, SYSTEMS AND METHODS FOR TRIALING KNEE JOINT Final Rejection Zimmer, Inc.
16860004 MULTIVASCULAR NETWORKS AND FUNCTIONAL INTRAVASCULAR TOPOLOGIES WITHIN BIOCOMPATIBLE HYDROGELS Final Rejection William Marsh Rice University
18646092 ENGINEERED TISSUE CONSTRUCTS AND USES THEREOF Non-Final OA Satellite Biosciences, Inc.
18435747 CONICAL STENT FOR INTRACRANIAL ANGIOPLASTY AND METHODS OF STENT PLACEMENT FOR PREVENTION AND TREATMENT OF ISCHEMIC STROKE Non-Final OA DyQure LLC
18373498 ANKLE SYSTEM FOR USE WITH PROSTHETIC FOOT STRUCTURE Non-Final OA WILLOWWOOD GLOBAL LLC
17970765 STENT Non-Final OA optimed medizinische Instrumente GmbH

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