Prosecution Insights
Last updated: April 19, 2026

Examiner: KNAUSS, CHRISTIAN D

Tech Center 3700 • Art Units: 3731 3734 3771

This examiner grants 71% of resolved cases

Performance Statistics

71.1%
Allow Rate
+1.1% vs TC avg
443
Total Applications
+34.3%
Interview Lift
1283
Avg Prosecution Days
Based on 408 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
27.0%
§102 Novelty
43.4%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18598697 ASPIRATION PULSATOR Final Rejection Covidien LP
18917969 CARTRIDGE SYSTEM Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
17977148 METHODS AND APPARATUS FOR TREATING DISORDERS OF THE SINUSES Non-Final OA Acclarent, 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
18139342 SINUS DILATION SYSTEM AND METHOD Non-Final OA Medtronic Xomed, Inc.
18794724 Multiple Suture Placement System Non-Final OA Cypris Medical, 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 Final Rejection The Children's Medical Center Corporation
18564774 FLEXIBLE SURGICAL DEVICE WITH CONTROLLABLE STIFFNESS Non-Final OA ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
18484378 EXTENDED CATHETER AND CATHETER SYSTEM FOR REMOVING EMBOLUS IN SMALL BLOOD VESSEL Final Rejection BROSMED MEDICAL CO., LTD.

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