Prosecution Insights
Last updated: October 01, 2026

Examiner: CASE, SARAH CATHERINE

Tech Center 1700 • Art Units: 1718 1731 1738 1748 1759 1774

This examiner grants 41% of resolved cases

Analysis

Sarah Catherine Case is an examiner in Art Unit 1718 and Tech Center 1700. She has resolved 56 cases with an allowance rate of 41.1 percent. This suggests a selective examination process where a portion of the applications result in a grant. The 56 resolved cases provide an initial dataset to understand the examiner's approach to patentability.

The interview lift of 50.8 percent is high. This figure implies that conducting an interview significantly increases the likelihood of allowance compared to the 41.1 percent baseline. Direct engagement is likely an effective strategy for advancing applications here. The 50.8 percent lift suggests that the examiner is receptive to verbal advocacy as a means to resolve outstanding issues.

The median time to allowance is 1169 days. While the allowance rate is 41.1 percent, the high interview lift suggests that the 1169-day timeline might be navigated more successfully through verbal negotiation. Practitioners should use the 50.8 percent lift to improve their chances of a grant within this 1169-day period.

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

Performance Statistics

41.1%
Allow Rate
-23.9% vs TC avg
115
Total Applications
+50.8%
Interview Lift
1169
Avg Prosecution Days
Based on 56 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
15.8%
§102 Novelty
50.7%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18188026 METHOD FOR PRODUCING COMPOSITION FOR FORMING INTERLAYER FOR NANOIMPRINT, METHOD FOR PRODUCING LAMINATE, IMPRINT PATTERN PRODUCING METHOD, AND METHOD FOR MANUFACTURING DEVICE Non-Final OA FUJIFILM Corporation
17970667 POLISHING COMPOSITIONS AND METHODS OF USE THEREOF Final Rejection Fujifilm Electronic Materials U.S.A., Inc.
17998619 MULTI-COMPONENT INORGANIC CAPSULE ANCHORING SYSTEM BASED ON PORTLAND CEMENT CLINKER Non-Final OA Hilti Aktiengesellschaft
18574142 USE OF ASPHALT COMPOSITION FOR WEATHERPROOFING APPLICATION Final Rejection BASF SE
18014915 CLOSED-CELL METAL OXIDE PARTICLES Non-Final OA BASF SE
18410633 ASPHALT BINDERS WITH PHENOL-RICH OILS Final Rejection ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
17993355 ABSORPTION OF SECONDARY ORGANIC AEROSOLS FROM CONSTRUCTION ELEMENTS Final Rejection ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
19346744 ANTICORROSIVE COMPOSITION Non-Final OA ROCKWOOL A/S
18183813 COMPOSITE MIXTURE AND SYSTEM FOR AQUATIC CONSTRUCTION AND ENVIRONMENTAL PROTECTION AND METHODS OF USE Non-Final OA Purdue Research Foundation
18301766 ABRASIVE PARTICLES Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
17793863 COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
17799354 PROCESS TO DELAY AGEING OF BITUMENS Final Rejection Arkema France
18461077 POLISHING LIQUID FOR POLISHING COMPOUND SEMICONDUCTOR SUBSTRATE Non-Final OA DISCO CORPORATION
17756130 BINDER COMPOSITION INCLUDING BIO-BASED COMPONENT Non-Final OA CARGILL, INCORPORATED
17639028 METHOD OF PRODUCTION OF A MINERAL FOAM FOR FILLING CAVITIES Non-Final OA Amrize Technology Switzerland LLC
18705392 PROCESS FOR ACTIVATING CLAYS WITH HIGH RESIDUAL MOISTURE Non-Final OA KHD HUMBOLDT WEDAG GMBH
18737979 PORTLAND CEMENT CLINKER MANUFACTURE USING HYALOCLASTITE OR LAVA AND METHOD OF MAKING AND USING SAME Non-Final OA Greencraft LLC
18067896 SYSTEMS AND METHODS OF CARBON CAPTURE FROM CEMENT PRODUCTION PROCESS Final Rejection Heirloom Carbon Technologies, Inc.

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