Prosecution Insights
Last updated: May 29, 2026

Examiner: KNAUSS, CHRISTIAN D

Tech Center 3700 • Art Units: 3731 3734 3771

This examiner grants 71% of resolved cases

Performance Statistics

71.2%
Allow Rate
+1.2% vs TC avg
446
Total Applications
+33.5%
Interview Lift
1201
Avg Prosecution Days
Based on 413 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
9.6%
§102 Novelty
80.8%
§103 Obviousness
8.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18871169 ENDOVASCULAR SAFETY CAGE Non-Final OA KONINKLIJKE PHILIPS N.V.
18598697 ASPIRATION PULSATOR Final Rejection Covidien LP
18958691 TISSUE REMOVAL SYSTEM Non-Final OA HOLOGIC, INC.
18917969 CARTRIDGE SYSTEM Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
18977243 SUTURE PASSER SYSTEMS AND METHODS FOR TONGUE OR OTHER TISSUE SUSPENSION AND COMPRESSION Non-Final OA Siesta Medical, Inc.
18860270 ROTATIONAL ATHERECTOMY APPARATUS AND ROTATIONAL ATHERECTOMY DEVICE Non-Final OA SHANGHAI MICROPORT ROTAPACE MEDTECH CO., LTD.
18535680 HOLDING DEVICE FOR A LITHOTRIPSY DEVICE, AND LITHOTRIPSY DEVICE FOR FRAGMENTING CALCULI Non-Final OA KARL STORZ SE & Co. KG
18797420 SINGLE-ANCHOR MECHANISM AND SUTURING DEVICE Non-Final OA Qiang ZHANG
18139342 SINUS DILATION SYSTEM AND METHOD Non-Final OA Medtronic Xomed, Inc.
18794724 Multiple Suture Placement System Non-Final OA Cypris Medical, Inc.
18766393 SYSTEM AND METHOD FOR GUIDED REMOVAL FROM AN IN VIVO SUBJECT Non-Final OA Calyxo, Inc.
18642788 SYSTEMS, DEVICES, AND METHODS FOR ASPIRATION, INCLUDING EXPANDABLE STRUCTURES AND ROTATABLE SHAFTS Non-Final OA Endovascular Engineering, Inc.
16560358 METHODS AND COLLAGEN PRODUCTS FOR TISSUE REPAIR Non-Final OA The Children's Medical Center Corporation
18484378 EXTENDED CATHETER AND CATHETER SYSTEM FOR REMOVING EMBOLUS IN SMALL BLOOD VESSEL Final Rejection BROSMED MEDICAL CO., LTD.

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