Prosecution Insights
Last updated: October 02, 2026

Examiner: ENDRESEN, KIRSTEN DANIELA

Tech Center 2800 • Art Units: 2874 2896

This examiner grants 71% of resolved cases

Analysis

Kirsten Daniela Endresen manages applications in Tech Center 2800 and Art Unit 2874, where she has 80 resolved cases. Her allowance rate is 71.3 percent. For these cases, the median time to allowance is 1062 days. This 1062 days duration provides a standard timeline for applicants to expect when their cases are allowed by this examiner.

The data shows an interview lift of 15.6 percent. This positive lift suggests that interviews are a productive way to advance prosecution and increase the probability of a grant. With a 71.3 percent allowance rate, the addition of an interview further strengthens the likelihood of a successful outcome. For the 80 resolved cases, the 15.6 percent lift indicates that direct discussion is a valuable supplement to written advocacy. Practitioners can use the 71.3 percent allowance rate as a favorable starting point for their prosecution strategy. The 1062 days median pendency is a key benchmark for planning.

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

Performance Statistics

71.3%
Allow Rate
+3.3% vs TC avg
107
Total Applications
+15.6%
Interview Lift
1062
Avg Prosecution Days
Based on 80 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
25.0%
§102 Novelty
49.4%
§103 Obviousness
24.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18735163 ILLUMINATION DEVICE, LIGHT GUIDE PLATE DISPOSITION DETERMINATION METHOD, AND PRINTING SYSTEM Non-Final OA FUJIFILM Corporation
18739748 SWITCH BASED ON A PHASE-CHANGE MATERIAL Non-Final OA Commissariat à l'Énergie Atomique et aux Énergies Alternatives
18477836 TECHNOLOGIES FOR THERMAL PLUGS IN A PHOTONIC INTEGRATED CIRCUIT DIE Non-Final OA Intel Corporation
17870719 PHOTONICS INTEGRATED CIRCUIT DEVICE INCLUDING METALENS STRUCTURE AND SYSTEM INCLUDING SAME Final Rejection INTEL CORPORATION
17849557 TECHNOLOGIES FOR EXPANDED BEAM OPTICAL CONNECTOR Non-Final OA Intel Corporation
18630447 OPTICAL DEVICE AND OPTICAL RECEIVER Final Rejection FUJITSU OPTICAL COMPONENTS LIMITED
18515915 HIGH CORE DENSITY OPTICAL FIBER CABLES Final Rejection CORNING RESEARCH & DEVELOPMENT CORPORATION
18676117 Single-Drive Differential Electrooptical Modulators Non-Final OA Cisco Technology, Inc.
18487623 OPTICAL ENGINE LID WITH OPTICAL FEEDTHROUGH Non-Final OA Cisco Technology, Inc.
18788787 METHOD OF MEASURING ELECTRO-OPTIC CHARACTERISTIC OF A TRAVELING WAVE MACH-ZEHNDER MODULATOR AND DEVICE FOR SAME Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18783789 PACKAGE WITH INTEGRATED OPTICAL DIE AND METHOD FORMING SAME Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18900209 LIQUID CRYSTAL BASED MODE FIELD DIAMETER OPTIMIZATION Non-Final OA META PLATFORMS, INC.
18369107 METHOD FOR MANUFACTURING OPTOELECTRONIC STRUCTURE AND A PACKAGE STRUCTURE Final Rejection Advanced Semiconductor Engineering, Inc.
18092145 OPTICAL DEVICE Final Rejection Advanced Semiconductor Engineering, Inc.
18840692 OPTICAL WAVEGUIDE ELEMENT, AND OPTICAL MODULATION DEVICE AND OPTICAL TRANSMISSION APPARATUS USING SAME Non-Final OA SUMITOMO OSAKA CEMENT CO., LTD.
18421250 HIGH FIBER COUNT UNDERSEA CABLE Non-Final OA SUBCOM, LLC
18843787 STRESS-CONTROLLED PACKAGING SCHEME FOR FIBER-BASED OPTICAL DEVICES Non-Final OA OFS Fitel, LLC
18582523 OPTICAL COUPLING ELEMENT, ARRANGEMENT, AND TRANSCEIVER Non-Final OA Innolume GmbH
18464087 OPTICAL COUPLING ELEMENT, ARRANGEMENT, AND TRANSCEIVER Non-Final OA Innolume GmbH

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