Prosecution Insights
Last updated: October 02, 2026

Examiner: WILLIAMS, CATHERINE SERKE

Tech Center 3900 • Art Units: 3772 3783 3993

This examiner grants 63% of resolved cases

Analysis

Catherine Serke Williams is an examiner in Tech Center 3900, Art Unit 3772. The examiner has 127 resolved cases, with an allowance rate of 63.0%. The median days to allowance for these cases is 1067, providing a timeline for practitioners to manage client expectations.

The interview lift is 29.1%, indicating that interviews are strongly correlated with an increased likelihood of allowance compared to the 63.0% baseline. This 29.1% lift suggests that oral advocacy is a particularly effective tool when working with this examiner. In Tech Center 3900, this examiner's specific focus in Art Unit 3772 involves technical subject matter that may contribute to these metrics. Practitioners should consider the 1067 median days to allowance alongside the 127 resolved cases. The 29.1% interview lift provides a data-driven reason to prioritize interviews.

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

Performance Statistics

63.0%
Allow Rate
+3.0% vs TC avg
148
Total Applications
+29.1%
Interview Lift
1067
Avg Prosecution Days
Based on 127 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
9.5%
§102 Novelty
34.0%
§103 Obviousness
20.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18761439 MEDICAL ACCESS CANNULAS AND ASSOCIATED METHODS Non-Final OA Boston Scientific Scimed, Inc.
18784174 SURGICAL CLIP APPLIER WITH PARALLEL CLOSURE JAWS Non-Final OA Cilag GMBH International
18206215 METHODS AND APPARATUS FOR AN ADJUSTABLE STIFFNESS CATHETER Non-Final OA W. L. Gore & Associates, Inc.
18198435 Vascular Access System With Integrated Catheter, Extension Set Providing Integrated Catheter Septum Access, Stabilization Features and Direct Probe Access Final Rejection Becton, Dickinson and Company
18890385 PROSTHESIS WITH SIDE BRANCH AND METHOD OF MAKING THE SAME Non-Final OA COOK MEDICAL TECHNOLOGIES LLC
18970384 LASER INSTRUMENT FOR EYE THERAPY Non-Final OA Carl Zeiss Meditec AG
18745670 MICROCATHETER OCCLUSION EMBOLIZATION CATHETER Final Rejection Merit Medical Systems, Inc.
18841723 SMART LIQUID DRUG ADMINISTRATION Non-Final OA Janssen Pharmaceuticals, Inc.
18840935 METHOD AND APPARATUS FOR MEDICAL INJECTION Non-Final OA BOVONEX INC.
18212744 Systems and Methods for Sinus Access Final Rejection Intersect ENT International GmbH
18277383 DEVICE FOR FLOW DETECTION OF MOTHER'S MILK Non-Final OA KAIZEN BIO-TECH (2011) LTD.

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