Prosecution Insights
Last updated: October 02, 2026

Examiner: BREIER, KRYSTINE E

Tech Center 3600 • Art Units: 2857 3645 3663

This examiner grants 82% of resolved cases

Analysis

Krystine E. Breier is an examiner in Tech Center 3600 and Art Unit 2857. The examiner has 531 resolved cases and an allowance rate of 82.3 percent. This rate indicates a very favorable environment for applicants in this docket. The median days to allowance for these cases is 1261.

The interview lift is 8.2 percent. This figure indicates that conducting an interview is associated with a higher likelihood of allowance compared to the 82.3 percent base rate. Practitioners should consider the 8.2 percent lift as a helpful method for advancing prosecution in Art Unit 2857.

The 531 resolved cases provide a substantial basis for understanding the 1261 day timeline. The allowance rate reflects the examiner's historical approach to applications. By utilizing the 8.2 percent lift, applicants may improve their outcomes in Tech Center 3600. This profile provides a data-grounded view of the prosecution environment.

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

Performance Statistics

82.3%
Allow Rate
+30.3% vs TC avg
544
Total Applications
+8.2%
Interview Lift
1261
Avg Prosecution Days
Based on 531 resolved cases, 2023–2026

Rejection Statute Breakdown

9.2%
§101 Eligibility
18.6%
§102 Novelty
53.4%
§103 Obviousness
16.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19039680 EVALUATING SUBSURFACE CONDITIONS Non-Final OA Halliburton Energy Services, Inc.
18494208 Leaky Flexural Wave Semblance Based Annular Stacking Velocity Determination In Cased Wells Final Rejection Halliburton Energy Services, Inc.
18575405 QUICKSAND AMOUNT OBSERVATION SYSTEM, QUICKSAND AMOUNT OBSERVATION APPARATUS, QUICKSAND AMOUNT OBSERVATION METHOD, AND COMPUTER-READABLE MEDIUM Final Rejection NEC Corporation
19076813 SONAR APPARATUS AND OBJECT DETECTION METHOD Non-Final OA Panasonic Automotive Systems Co., Ltd.
19070049 OBJECT DETECTION APPARATUS AND METHOD OF DETECTING OBJECT Non-Final OA Panasonic Automotive Systems Co., Ltd.
19005219 SYSTEM FOR CALIBRATION OF AN ULTRASOUND PROBE BASED ON DETERMINED SENSITIVITES OF TRANSDUCER ELEMENTS OF THE ULTRASOUND PROBE Non-Final OA GE Precision Healthcare LLC
18901760 INDOOR MIMO ACOUSTIC DETECTION AND LOCALIZATION USING TONE SIGNALS Non-Final OA NEC Laboratories America, Inc.

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