Prosecution Insights
Last updated: October 27, 2026

Christian D Knauss, USPTO Patent Examiner

Listed by the USPTO as KNAUSS, CHRISTIAN D

Tech Center 3700 • Art Units: 3731 3734 3771

This examiner grants 71% of resolved cases

Analysis

Christian D. Knauss is assigned to Tech Center 3700 and Art Unit 3731. His record includes 429 resolved cases, a 71.3% allowance rate, and a median of 1,196 days to allowance. The interview lift is 32.9%, showing a positive association between interviews and allowance in the reported record.

The listed companies are Boston Scientific Corporation, Gyrus ACMI, Inc. D/B/A Olympus Surgical Technologies America, and Stryker Corporation. The listed firms are SLW - Olympus, Bay State IP, LLC, and Blank Rome LLP. The 71.3% allowance rate provides the overall outcome reference, while the 32.9% interview lift supports including examiner discussions in prosecution planning. The 1,196-day median should be incorporated into portfolio scheduling and client expectations.

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

Performance Statistics

71.3%
Allow Rate
+1.3% vs TC avg
474
Total Applications
+32.9%
Interview Lift
1196
Avg Prosecution Days
Based on 429 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
19.3%
§102 Novelty
49.2%
§103 Obviousness
26.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19000262 VASO-OCCLUSIVE DEVICE Final Rejection Stryker European Operations Limited
19036474 ELEVATORS FOR MEDICAL DEVICES AND RELATED METHODS Non-Final OA Boston Scientific Medical Device Limited
19227571 ASPIRATION LITHOTRIPSY DEVICE Non-Final OA Boston Scientific Scimed, Inc.
17839031 DEVICES, SYSTEMS AND METHODS FOR TISSUE RESECTION Final Rejection BOSTON SCIENTIFIC SCIMED, INC.
18871169 ENDOVASCULAR SAFETY CAGE Final Rejection KONINKLIJKE PHILIPS N.V.
19256113 KNOTLESS TISSUE REPAIR Non-Final OA Arthrex, Inc.
18917969 CARTRIDGE SYSTEM Final Rejection OLYMPUS MEDICAL SYSTEMS CORP.
18978206 IMPLANTABLE MEDICAL DEVICES AND RELATED DELIVERY SYSTEMS Final Rejection W. L. Gore & Associates, Inc.
18958691 TISSUE REMOVAL SYSTEM Final Rejection HOLOGIC, INC.
19035748 COLLAPSIBLE HANDLE DESIGN FOR DEBRIDERS Non-Final OA GYRUS ACMI, INC. d/b/a OLYMPUS SURGICAL TECHNOLOGIES AMERICA
18417486 MEDICANT DELIVERY DEVICE Non-Final OA GYRUS ACMI, INC D/B/A OLYMPUS SURGICAL TECHNOLOGIES AMERICA

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Frequently Asked Questions

What is examiner Christian D Knauss's allowance rate?

71.3% of resolved applications examined by Christian D Knauss were allowed (429 resolved cases), compared with 63.1% across Art Unit 3731 over the last five years.

Does an interview help with examiner Christian D Knauss?

This examiner's interview lift is +32.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christian D Knauss take to allow a patent?

Applications allowed by Christian D Knauss took 1,196 days on average from filing to allowance.

Which art unit does examiner Christian D Knauss work in?

Christian D Knauss examines applications in Art Unit 3731 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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