Prosecution Insights
Last updated: October 02, 2026

Examiner: GRIZER, CASSANDRA SENN

Tech Center 1600 • Art Units: 1600 1671 1672 1675

This examiner grants 75% of resolved cases

Analysis

Cassandra Senn Grizer is an examiner in Tech Center 1600 and Art Unit 1600. The profile includes 8 resolved cases, which result in an allowance rate of 75.0 percent. This 75.0 percent rate serves as a baseline for practitioners to estimate the probability of a grant. With 8 resolved cases, the data provides an initial look at the examiner's tendencies in this biotechnology and organic chemistry center.

The data shows an interview lift of 18.8 percent. This figure indicates that conducting an interview is associated with an increased probability of allowance compared to the baseline of cases where no interview occurs. Practitioners may consider the 18.8 percent lift when deciding whether to engage in direct communication. This positive lift suggests that verbal advocacy can be a factor in the prosecution process for Art Unit 1600.

The median days to allowance for Grizer is 1129. This 1129-day timeline provides a benchmark for the expected duration of the prosecution process from filing to grant. The combination of the 75.0 percent allowance rate and the 18.8 percent interview lift offers a preliminary roadmap for applicants. Understanding these metrics, including the 1129-day median, helps in setting expectations for both timing and results.

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

Performance Statistics

75.0%
Allow Rate
+15.0% vs TC avg
49
Total Applications
+18.8%
Interview Lift
1129
Avg Prosecution Days
Based on 8 resolved cases, 2023–2026

Rejection Statute Breakdown

5.9%
§101 Eligibility
11.3%
§102 Novelty
44.1%
§103 Obviousness
32.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18277879 NOVEL BACTERIOPHAGE HAVING CLOSTRIDIUM PERFRINGENS-SPECIFIC BACTERICIDAL EFFECT AND ANTIBACTERIAL COMPOSITION COMPRISING SAME Non-Final OA CJ CheilJedang Corporation
18035809 ENGINEERED PROTEIN FOR RAPID, EFFICIENT CAPTURE OF PATHOGEN-SPECIFIC ANTIBODIES Final Rejection Massachusetts Institute of Technology
18175852 MANUFACTURING PROCESS FOR HIGH TITER ANTIBODY Non-Final OA Regeneron Pharmaceuticals, Inc.
18448721 DOSING AND SCHEDULING REGIMEN FOR BROADLY NEUTRALIZING ANTIBODIES Final Rejection Gilead Sciences, Inc.
18273053 MICROTUBULE DESTABILIZER ADDITIVES TO INCREASE RECOMBINANT VIRAL VECTOR TITERS Non-Final OA Biogen MA Inc.
18417379 VACCINE Non-Final OA ASTRAZENECA AB
18256484 METHODS OF PRODUCING ADENOVIRUS Final Rejection ASTRAZENECA UK LIMITED
18272115 VACCINE COMPOSITIONS Final Rejection Oxford University Innovation Limited
18686564 MULTIVALENT VIRAL PARTICLES Non-Final OA CORNELL UNIVERSITY
18271983 COMPOSITIONS AND METHODS FOR THE GENETIC MANIPULATION OF THE INFLUENZA VIRUS Non-Final OA Duke University
18553124 Peptide of Norovirus Origin, Polynucleotide, Antibody, Composition, Method for Identifying Neutralizing Epitope for Norovirus Non-Final OA Denka Company Limited
18461835 PRODUCTION OF ELISA REAGENTS AND VACCINES BY 'ONE PROCESS' Non-Final OA KING ABDULAZIZ UNIVERSITY
18283516 IMMUNOGENIC COMPOSITIONS Final Rejection THE UNITED STATES OF AMERICA, as represented by THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVIC
18271901 REPLICATION-COMPETENT ADENOVIRUS TYPE 4 SARS-COV-2 VACCINES AND THEIR USE Non-Final OA The U.S.A., as Represented by The Secretary, Department of Health and Human Services
18710727 COVID-19 THERANOSTIC Non-Final OA Université libre de Bruxelles
18272087 HOMOLOGOUS ADENOVIRAL VACCINATION Non-Final OA Gritstone bio, Inc.
18285148 NANOGEL-COATED VACCINE Final Rejection HanaVax Inc.

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