Prosecution Insights
Last updated: October 02, 2026

Examiner: FUNG, CHING-YIU

Tech Center 1700 • Art Units: 1732 1787

This examiner grants 32% of resolved cases

Analysis

Ching-Yiu Fung is an examiner in Tech Center 1700 and Art Unit 1732. He has 306 resolved cases. The allowance rate pct is 32.4, which indicates a challenging environment for applicants. The median days to allowance is 1429, reflecting the time required to navigate this rigorous examination process.

The interview lift pct is 20.8. This metric shows that interviews are a valuable tool, providing a significant increase in the probability of success compared to the base 32.4 allowance rate pct. Practitioners should consider the 20.8 interview lift pct as a central part of their strategy to overcome rejections in Art Unit 1732.

With 306 resolved cases, the examiner has an established record. The 1429 median days to allowance is a consistent benchmark for pendency. Given the 32.4 allowance rate pct, applicants should be prepared for a detailed prosecution and use the 20.8 interview lift pct to clarify technical points directly with the examiner.

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

Performance Statistics

32.4%
Allow Rate
-32.6% vs TC avg
318
Total Applications
+20.8%
Interview Lift
1429
Avg Prosecution Days
Based on 306 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
11.6%
§102 Novelty
56.4%
§103 Obviousness
26.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18005175 CATALYSTS FOR HYDROGENATION OF AROMATIC CONTAINING POLYMERS AND USES THEREOF Non-Final OA SABIC Global Technologies B.V.
17793977 MOLDING CATALYST AND METHOD FOR PRODUCING HALOGEN Non-Final OA SUMITOMO CHEMICAL COMPANY, LIMITED
17928224 ALUMINIUM AND ZIRCONIUM-BASED MIXED OXIDE Non-Final OA RHODIA OPERATIONS
17781282 ALUMINA WITH A PARTICULAR PORE PROFILE Final Rejection RHODIA OPERATIONS
17746927 Autonomous Modular Flare Gas Conversion Systems and Methods Non-Final OA M2X Energy Inc.

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