Prosecution Insights
Last updated: October 04, 2026

Examiner: HAN, ROBIN

Tech Center 3700 • Art Units: 2881 3772 3786

This examiner grants 34% of resolved cases

Analysis

Robin Han serves in Art Unit 2881 within Tech Center 3700. The examiner has 154 resolved cases and an allowance rate of 33.8 percent. This allowance rate is relatively low, suggesting that applicants may face significant hurdles during the prosecution process in this technology area. The 154 resolved cases provide a solid foundation for understanding the examiner's rigorous approach to patentability.

The median time to allowance for these cases is 1309 days. This figure indicates a lengthy prosecution timeline, which practitioners should factor into their overall strategy. The 1309-day duration represents the typical path for applications that successfully overcome rejections. Managing client expectations around this 1309-day benchmark is essential for those navigating the 3700 Tech Center.

The data shows a very high interview lift of 61.8 percent. This suggests that conducting an interview is an exceptionally effective way to improve the odds of success, potentially moving an application from the 33.8 percent baseline toward a grant. The 61.8 percent lift is one of the most significant metrics for this examiner, indicating that direct communication is a critical tool for resolving outstanding issues. Practitioners should prioritize scheduling a formal discussion to navigate the challenges reflected in the baseline allowance rate.

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

Performance Statistics

33.8%
Allow Rate
-36.2% vs TC avg
182
Total Applications
+61.8%
Interview Lift
1309
Avg Prosecution Days
Based on 154 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
17.6%
§102 Novelty
54.9%
§103 Obviousness
21.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19321978 INSERTER Final Rejection Bayer Oy
19298494 DEVICES AND METHODS FOR OCCLUDING THE PUNCTAL OPENING Final Rejection Oasis Medical, Inc.
19226321 HEAD STABILIZATION DEVICE TENSIONING FEATURE AND METHOD OF USE Non-Final OA pro med instruments GmbH
18179510 Head Stabilization Device Tensioning Feature and Method of Use Non-Final OA pro med instruments GmbH
16829063 HEAD HARNESS FOR A PATIENT INTERFACE, AND PATIENT INTERFACE WITH HEAD HARNESS Non-Final OA Loewenstein Medical Technology S.A.
18028453 POLYMERIC MANDIBULAR ADVANCEMENT DEVICES AND METHODS FOR MAKING AND USING THEM Non-Final OA ProSomnus Sleep Technologies, Inc.
18899519 COMPRESSION GARMENT ASSEMBLY SET, COMPRESSION GARMENT AND METHOD FOR ASSEMBLING A COMPRESSION GARMENT Final Rejection MEDI USA, L.P.
18608687 PROTECTION DEVICE WITH INTEGRATED FILTER MASK AND EYE SHIELD WITH MAGNIFICATION LENSES Final Rejection KNOBBE, MARTENS, OLSON & BEAR, LLP
18691840 Intrauterine Contraceptive Device Final Rejection Sebela VLC Limited
18440951 MULTI-DIGIT BRACES AND METHODS OF USE Final Rejection Fight Fingers, LLC
17922987 VAGINAL DEVICE FOR PROLAPSE TREATMENT Final Rejection Stichting Radboud universitair medisch centrum
18562481 SYSTEM, METHOD AND KIT FOR IMMOBILIZATION OF A HUMAN'S BODY PART Non-Final OA MACROMEDICS B.V.
18510703 METHODS AND DYNAMIC DENTAL APPLIANCE FOR THE TREATMENT OF AWAKE BRUXISM AND/OR SLEEP BRUXISM Final Rejection Population Sleep, LLC
18506562 Biodegradable Patient Support Device for Positioning During a Surgical Procedure and Patient Positioning Method Final Rejection Xodus Medical, Inc.
15774250 BAND FOR COMPRESSING OR SUPPORTING A JOINT Non-Final OA MILLET INNOVATION

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