Prosecution Insights
Last updated: October 26, 2026

Bonirath Chhay, USPTO Patent Examiner

Listed by the USPTO as CHHAY, BONIRATH

Tech Center 1600 • Art Units: 1645 1651 1657

This examiner grants 62% of resolved cases

Analysis

CHHAY, BONIRATH works in tech center 1600 and art unit 1645, with 8 resolved cases. The allowance rate is 62.5%, and the median time to allowance is 1155 days. The interview lift is 0.0%, showing no recorded difference associated with interviews.

The companies represented are The Regents of the University of California, CJ CheilJedang Corporation, and Murata Manufacturing Co., Ltd. The leading firms are Joseph R. Baker, APC, ARENTFOX SCHIFF LLP - New York, and Element IP, PLC. Because the resolved-case record is small, practitioners should treat these signals cautiously.

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

Performance Statistics

62.5%
Allow Rate
+2.5% vs TC avg
43
Total Applications
+0.0%
Interview Lift
1155
Avg Prosecution Days
Based on 8 resolved cases, 2023–2026

Rejection Statute Breakdown

8.5%
§101 Eligibility
7.8%
§102 Novelty
32.6%
§103 Obviousness
33.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19144202 MICROORGANISMS INTRODUCED WITH EXOGENOUS SOLUBLE PYRIDINE NUCLEOTIDE TRANSHYDROGENASE AND METHOD FOR PRODUCING L-TRYPTOPHAN USING THE SAME Non-Final OA CJ CHEILJEDANG CORPORATION
18860177 OSMOLYSIS-BASED RECOVERY OF BIOMACROMOLECULES FROM ENGINEERED HALOTOLERANT MICROORGANISMS Non-Final OA The Regents of the University of California
18681457 GENETICALLY ENGINEERED CELL-DERIVED VACCINES Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18505399 ANTIFUNGAL AGENT Non-Final OA Murata Manufacturing Co., Ltd.
18285920 A MULTIPLEX ASSAY FOR THE DIAGNOSIS OF BRUCELLA CANIS INFECTION Non-Final OA CORNELL UNIVERSITY

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Frequently Asked Questions

What is examiner Bonirath Chhay's allowance rate?

62.5% of resolved applications examined by Bonirath Chhay were allowed (8 resolved cases), compared with 49.5% across Art Unit 1645 over the last five years.

Does an interview help with examiner Bonirath Chhay?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Bonirath Chhay take to allow a patent?

Applications allowed by Bonirath Chhay took 1,155 days on average from filing to allowance.

Which art unit does examiner Bonirath Chhay work in?

Bonirath Chhay examines applications in Art Unit 1645 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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