Last updated: May 29, 2026

Examiner: SINGH, PREM C

Tech Center 1700 • Art Units: 1771 1797

This examiner grants 59% of resolved cases

Performance Statistics

59.0%

Allow Rate

-6.0% vs TC avg

360

Total Applications

+33.1%

Interview Lift

1474

Avg Prosecution Days

Based on 356 resolved cases, 2023–2026

0.3%

§101 Eligibility

0.8%

§102 Novelty

84.0%

§103 Obviousness

0.5%

§112 Clarity

App #	Title	Status	Assignee
18694147	OLEFIN PRODUCTION METHOD	Final Rejection	SUMITOMO CHEMICAL COMPANY, LIMITED
18109444	METHOD FOR PREPARING ALKYL CARBOXYLIC ACID ESTER AND APPARATUS FOR PREPARING ALKYL CARBOXYLIC ACID ESTER	Final Rejection	GS CALTEX CORPORATION
18148470	DEVICE FOR SYNTHESIZING HOMOGENEOUS POLYMER SPHERES BASED ON CHANNEL PREPOLYMERIZATION, AND METHOD OF USING THE SAME	Non-Final OA	NANJING UNIVERSITY
18006628	Low carbon hydrogen fuel	Final Rejection	TOPSOE A/S

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