Prosecution Insights
Last updated: October 26, 2026

Christopher D Prone, USPTO Patent Examiner

Listed by the USPTO as PRONE, CHRISTOPHER D

Tech Center 3700 • Art Units: 3738 3774

This examiner grants 65% of resolved cases

Analysis

PRONE, CHRISTOPHER D examines in Tech Center 3700 and Art Unit 3738. His profile shows 826 resolved cases, a 64.9% allowance rate, and a 1562-day median time to allowance. The 19.1% interview lift is positive, indicating that interviews may improve the handling of contested claim issues.

The top companies are Edwards Lifesciences Corporation, Arthrex Inc., and Stryker Corporation. The listed firms are Cozen O''Connor - SEA Patent, Cole Schotz, P.C., and DUANE MORRIS LLP - WRIGHT MEDICAL TECHNOLOGY.

The allowance rate reflects mixed outcomes, and the median timing indicates that prosecution can be prolonged. Practitioners should assess claim breadth early, preserve fallback positions, and use interviews to focus amendments before further examination cycles accumulate. The medical-device concentration also supports detailed preparation on structure, function, and written support.

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

Performance Statistics

64.9%
Allow Rate
-5.1% vs TC avg
880
Total Applications
+19.1%
Interview Lift
1562
Avg Prosecution Days
Based on 826 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
23.1%
§102 Novelty
47.7%
§103 Obviousness
25.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17654080 SET OF GLENOID COMPONENTS FOR A SHOULDER PROSTHESIS Non-Final OA HOWMEDICA OSTEONICS CORP.
18155996 BRAIDED STENT WITH IMPROVED FLEXIBILITY Final Rejection BOSTON SCIENTIFIC SCIMED, INC.
18300903 EXPANDABLE EVANS WEDGE Non-Final OA GLOBUS MEDICAL, INC.
18610547 BALLOONS FOR PROSTHETIC VALVE DELIVERY APPARATUS AND METHODS OF ASSEMBLY Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18606350 FLEXIBLE COMMISSURE FRAME Final Rejection EDWARDS LIFESCIENCES CORPORATION
17732985 PROSTHETIC HEART VALVE HAVING LOCKING FEATURE Final Rejection Edwards Lifesciences Corporation
17654570 ADAPTABLE DEVICES AND SYSTEMS FOR DOCKING IN CIRCULATORY SYSTEM AND METHODS THEREOF Non-Final OA Edwards Lifesciences Corporation
18723624 TRANSCATHETER VALVE DELIVERY SYSTEM WITH IMPROVED LOADING AND DEPLOYMENT Non-Final OA MEDTRONIC, INC.

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Frequently Asked Questions

What is examiner Christopher D Prone's allowance rate?

64.9% of resolved applications examined by Christopher D Prone were allowed (826 resolved cases), compared with 0.0% across Art Unit 3738 over the last five years.

Does an interview help with examiner Christopher D Prone?

This examiner's interview lift is +19.1 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 D Prone take to allow a patent?

Applications allowed by Christopher D Prone took 1,562 days on average from filing to allowance.

Which art unit does examiner Christopher D Prone work in?

Christopher D Prone examines applications in Art Unit 3738 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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