Prosecution Insights
Last updated: October 02, 2026

Examiner: LANCASTER, LINDSAY REGAN

Tech Center 3700 • Art Units: 3794

This examiner grants 53% of resolved cases

Analysis

Lindsay Regan Lancaster is an examiner in Tech Center 3700 and Art Unit 3794. She has 104 resolved cases. The allowance rate for these cases is 52.9 percent. The median days to allowance is 1432, which is a relatively long duration for reaching a final decision. These 104 resolved cases define the current landscape in Art Unit 3794.

The interview lift is 20.8 percent, which is the increase in allowance probability compared to the 52.9 percent baseline. This 20.8 percent lift suggests that interviews are a helpful strategy for applicants. Practitioners should factor the 1432 day median pendency into their planning for the 104 cases she has resolved. The 52.9 percent allowance rate offers a balanced outlook for patent seekers. Her work in Tech Center 3700 is characterized by these resolved cases.

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

Performance Statistics

52.9%
Allow Rate
-17.1% vs TC avg
153
Total Applications
+20.8%
Interview Lift
1432
Avg Prosecution Days
Based on 104 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
19.8%
§102 Novelty
70.3%
§103 Obviousness
5.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17303591 MEDICAL TREATMENT SYSTEM Final Rejection Covidien LP
18058076 MEDICAL DEVICES AND RELATED METHODS Final Rejection Boston Scientific Scimed, Inc.
17874583 ELECTRICAL FIELD VISUALIZATION FOR ELECTROPORATION CATHETER WITH MULTIPLE STATES Final Rejection Boston Scientific Scimed, Inc
17358281 METHOD OF HUB COMMUNICATION, PROCESSING, DISPLAY, AND CLOUD ANALYTICS Non-Final OA Cilag GmbH International
19042373 MEDICAL DEVICE FOR MAPPING AND/OR ABLATION Non-Final OA St. Jude Medical, Cardiology Division, Inc.
18506524 SYSTEMS AND METHODS FOR CATHETERS HAVING COMBINED MAPPING AND ABLATION CAPABILITIES Final Rejection St. Jude Medical, Cardiology Division, Inc.
18954953 PERICARDIAL TRANSECTION DEVICE WITH RETRACTABLE CUTTING APPARATUS Non-Final OA EDWARDS LIFESCIENCES CORPORATION
19015608 ENDOSCOPE TREATMENT TOOL Non-Final OA Olympus Corporation
17719687 ELECTRODE INSTRUMENT, SURGICAL HANDHELD DEVICE, AND THEIR PRODUCTION METHODS Final Rejection OLYMPUS WINTER & IBE GMBH
17677044 ELECTROSURGICAL HANDHELD DEVICE, AND CONTACT BODY FOR AN ELECTROSURGICAL HANDHELD DEVICE Final Rejection Olympus Winter & Ibe GmbH
18630713 METHODS OF ENSURING PULSED FIELD ABLATION GENERATOR SYSTEM ELECTRICAL SAFETY Final Rejection Medtronic, Inc.
17678102 PULSED ELECTRIC FIELD (PEF) INDEX Final Rejection Medtronic, Inc.
19006934 MEDICAL PROBE INCLUDING A GENERALLY SEMI-SPHERICAL OR SEMI-CONICAL MEMBRANE Non-Final OA Biosense Webster (Israel) Ltd.
18482815 CATHETER INSERTION TOOL Final Rejection Biosense Webster (Israel) Ltd.
17566336 Basket Catheter Having Ablation Electrodes and Temperature Sensors Final Rejection Biosense Webster (Israel) Ltd.
17555220 Irreversible Electroporation Return Electrode and System Final Rejection Biosense Webster (Israel) Ltd.
17535354 Attaining Higher Impedances for Large Indifferent Electrodes Final Rejection Biosense Webster (Israel) Ltd.
17124679 GUI FOR HIGHLIGHTING SIGNALS PRIOR, DURING, AND POST ABLATION USING MULTI-ELECTRODE CATHETERS Final Rejection BIOSENSE WEBSTER (ISRAEL) LTD.
18365502 TWO-MODE MORCELLATION DEVICE Final Rejection Gyrus ACMI, Inc. D/B/A Olympus Surgical Technologies America
17653486 DISTAL WIRE ROUTING FOR STRAIGHT JAW FORCEPS Final Rejection GYRUS ACMI, INC,D/B/A OLYMPUS SURGICAL TECHNOLOGIES AMERICA

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