Prosecution Insights
Last updated: October 02, 2026

Examiner: LEWIS, PATRICK T

Tech Center 1600 • Art Units: 1621 1623 1657 1672 1673 1691 1693

This examiner grants 74% of resolved cases

Analysis

Patrick T Lewis is an examiner in Tech Center 1600, working within Art Unit 1621. The examiner has 1166 resolved cases. This volume of work has resulted in an allowance rate pct of 74.0. For practitioners, this allowance rate pct serves as an indicator of the outcome frequency for applications assigned to this docket. The data also reveals an interview lift pct of 14.5. This interview lift pct suggests that conducting an interview is a strategy associated with an increased probability of allowance. Applications that reach a grant do so with a median days to allowance of 846.

The 846 median days to allowance provides a timeline for the patent acquisition process. By analyzing the 1166 resolved cases, one can see the historical record of practice in Art Unit 1621. The 74.0 allowance rate pct and 14.5 interview lift pct provide metrics for evaluating the prosecution environment. These figures assist in the development of a strategy for patent applications. Understanding these data points is useful for managing expectations and resources during the examination phase.

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

Performance Statistics

74.0%
Allow Rate
+14.0% vs TC avg
1,182
Total Applications
+14.5%
Interview Lift
846
Avg Prosecution Days
Based on 1166 resolved cases, 2023–2026

Rejection Statute Breakdown

6.1%
§101 Eligibility
19.7%
§102 Novelty
31.8%
§103 Obviousness
22.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18294477 5'UTR VARIANT SEQUENCE OF GENE ENCODING PHOSPHOENOLPYRUVATE CARBOXYLASE, AND USES THEREOF Non-Final OA CJ CHEILJEDANG CORPORATION
18609391 PYRROLOPYRIMIDINE NUCLEOSIDES AND ANALOGS THEREOF Non-Final OA The Regents of the University of Michigan
18718549 METHODS FOR ENRICHMENT OF CIRCULAR RNA UNDER DENATURING CONDITIONS Non-Final OA Flagship Pioneering Innovations VI, LLC
18597050 COMPOSITIONS INCORPORATING SULFATED POLYSACCHARIDES FOR INHIBITING SARS-COV-2 Non-Final OA RENSSELAER POLYTECHNIC INSTITUTE
18685385 TRANSPARENT COMPOSITION COMPRISING POLYHYDROXY ACID Non-Final OA L'OREAL
17636532 DIAGNOSTICS AND METHODS FOR PROGNOSING RESPONSE TO IMMUNOTHERAPY BASED ON THE METHYLATION STATUS OF IMMUNE SYNAPSE GENE SIGNATURE Final Rejection H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.
18570876 Means and Methods to Regulate Gut Dysbiosis Final Rejection Universiteit Gent

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