Prosecution Insights
Last updated: October 02, 2026

Examiner: ZILBERING, ASSAF

Tech Center 1700 • Art Units: 1781 1792 1793

This examiner grants 35% of resolved cases

Analysis

Assaf Zilbering works in Tech Center 1700 and Art Unit 1781, having resolved 659 cases. The examiner has an allowance rate of 35.2 percent. This 35.2 percent rate indicates a challenging environment for applicants in this art unit. The 659 resolved cases provide a robust dataset, showing that the rate is a consistent and reliable metric for this examiner's practice in Tech Center 1700.

The median days to allowance is 1525 days. The interview lift is 27.8 percent. This 27.8 percent lift suggests that conducting an interview is a productive strategy for increasing the chances of an allowance with this examiner. By leveraging the lift, practitioners can improve their prospects beyond the baseline allowance rate. The 1525 days median timeline is a significant factor for applicants to consider when planning their prosecution strategy. These metrics together highlight the importance of using every available tool to navigate a difficult examination process in Art Unit 1781.

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

Performance Statistics

35.2%
Allow Rate
-29.8% vs TC avg
717
Total Applications
+27.8%
Interview Lift
1525
Avg Prosecution Days
Based on 659 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
7.9%
§102 Novelty
63.5%
§103 Obviousness
22.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19174611 KETONE BEVERAGE CONTAINING CAFFEINE AND (R)-1,3-BUTANEDIOL AND/OR (R)-BETA-HYDROXYBUTYRIC ACID AND SALTS Non-Final OA KetoneAid, Inc.
17919145 FROZEN COOKED RICE AND METHOD FOR PREPARING THEREOF Final Rejection CJ CHEILJEDANG CORPORATION
18539156 FAT LUMP COMPOSITION, FAT LUMP MIXTURE, MEAT ALTERNATIVE, AND METHOD OF PRODUCING FAT LUMP COMPOSITION Final Rejection FUJIFILM CORPORATION
18686677 SILAGE INOCULANTS FOR INHIBITION OF ACETOBACTER Non-Final OA PIONEER HI-BRED INTERNATIONAL, INC.
18614678 CONFECTION AND METHOD FOR MAKING CONFECTIONS Non-Final OA BANDAI CO., LTD.
18572400 PROCESSED FOOD PRODUCT Final Rejection SUNTORY HOLDINGS LIMITED
18801926 Organic Food Preservative Compositions Non-Final OA Locus Solutions IPCo, LLC
17108102 METHODS AND COMPOSITIONS FOR CONSUMABLES Final Rejection Impossible Foods Inc.
17512592 COMPOSITIONS OF HETERO- AND HOMOFERMENTATIVE LACTIC ACID BACTERIAL SPECIES FOR DUAL PURPOSE SILAGE PRESERVATION Final Rejection Chr. Hansen A/S
17619032 STABLE, SPRAY-DRIED FLAVOR COMPOSITIONS Final Rejection Givaudan SA
18035594 EDIBLE MICROBIAL OIL Non-Final OA C16 Biosciences, Inc.
17616220 COCOA EXTRACTION METHODS AND TECHNIQUES Final Rejection ODC Lizenz AG

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