Prosecution Insights
Last updated: August 17, 2026

Examiner: MARCSISIN, ELLEN JEAN

Tech Center 1700 • Art Units: 1625 1641 1645 1674 1677 1678 1758

This examiner grants 34% of resolved cases

Performance Statistics

34.0%
Allow Rate
-31.0% vs TC avg
404
Total Applications
+50.2%
Interview Lift
3597
Avg Prosecution Days
Based on 359 resolved cases, 2023–2026

Rejection Statute Breakdown

12.2%
§101 Eligibility
9.3%
§102 Novelty
34.7%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18044371 SYSTEMS AND METHODS FOR THE AMPLIFIED DETECTION OF MOLECULES ON MICROPARTICLES Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18300689 ELECTROCHEMILUMINESCENCE METHOD OF DETECTING AN ANALYTE IN A LIQUID SAMPLE AND ANALYSIS SYSTEM Final Rejection Hitachi High-Tech Corporation
18133908 HIGH-THROUGHPUT FLOW CYTOMETRY ANALYSIS OF HIGHLY MULTIPLEXED SAMPLES USING SAMPLE INDEXING WITH SPECIFIC BINDING MEMBER-FLUOR CONJUGATES Non-Final OA Becton, Dickinson and Company
18126819 SINGLE DOMAIN ANTIBODY/POLYMERIC TANDEM FLUORESCENT DYE CONJUGATES, AND METHODS FOR MAKING AND USING THE SAME Non-Final OA Becton, Dickinson and Company
18004402 SINGLE-MOLECULE, REAL-TIME, LABEL-FREE DYNAMIC BIOSENSING WITH NANOSCALE MAGNETIC FIELD SENSORS Final Rejection Western Digital Technologies, Inc.
17923148 METHOD OF USING EXTRACELLULAR VESICLES TO DETECT COMPLEMENT ACTIVATION, AND USES THEREOF TO ASSESS AND/OR MONITOR TREATMENT OF A COMPLEMENT-MEDIATED DISEASE Non-Final OA Alexion Pharmaceuticals, Inc.
17952897 METHOD FOR MEASURING THE PROTEASE ACTIVITY OF C3 AND C5 CONVERTASE OF THE ALTERNATIVE COMPLEMENT PATHWAY Final Rejection Alexion Pharmaceuticals, Inc.

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