Prosecution Insights
Last updated: October 25, 2026

Peter Paras Jr., USPTO Patent Examiner

Listed by the USPTO as PARAS JR, PETER

Tech Center 1600 • Art Units: 1632 1645

This examiner grants 9% of resolved cases

Analysis

This record includes 66 resolved cases in Tech Center 1600 and Art Unit 1632. The allowance rate is 9.1%, and the median time to allowance is 1608 days. Interview lift is 7.7%, a modest positive association within a record that shows a low allowance rate and extended pendency.

The listed companies are The Board of Trustees of the Leland Stanford Junior University, Children`S Medical Center Corporation, and Shanghai Lytone Biochemicals Ltd. The listed firms are CHOATE, HALL & STEWART LLP, GREER, BURNS & CRAIN, LTD, and Leason Ellis LLP. Early claim assessment and sustained prosecution planning appear particularly important for matters in this profile.

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

Performance Statistics

9.1%
Allow Rate
-50.9% vs TC avg
87
Total Applications
+7.7%
Interview Lift
1608
Avg Prosecution Days
Based on 66 resolved cases, 2023–2026

Rejection Statute Breakdown

7.8%
§101 Eligibility
15.3%
§102 Novelty
43.1%
§103 Obviousness
28.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17963806 DERIVATION OF HEPATOCYTES AND HEMATOPOIETIC PROGENITORS FROM HUMAN EMBRYONIC STEM CELLS Final Rejection Wisconsin Alumni Research Foundation
17353049 COMPOSITIONS AND METHODS FOR AIRWAY TISSUE REGENERATION Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17430822 Treating Heart Failure Final Rejection Children`s Medical Center Corporation
18512470 METHOD OF REDUCING URIC ACID BY USING LACTOBACILLUS PARACASEI LT12 Non-Final OA SHANGHAI LYTONE BIOCHEMICALS, LTD.
18560651 ADENOVIRAL HELPER PLASMID Non-Final OA Forge Biologics, Inc.
17312820 MULTIVALENT PNEUMOCOCCAL POLYSACCHARIDE-PROTEIN CONJUGATE VACCINE Non-Final OA Biological E Limited
17057143 SYSTEM FOR CELL CULTURE IN A BIOREACTOR Non-Final OA INSTITUT D'OPTIQUE THÉORIQUE ET APPLIQUÉE

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Frequently Asked Questions

What is examiner Peter Paras Jr.'s allowance rate?

9.1% of resolved applications examined by Peter Paras Jr. were allowed (66 resolved cases), compared with 38.1% across Art Unit 1632 over the last five years.

Does an interview help with examiner Peter Paras Jr.?

This examiner's interview lift is +7.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Peter Paras Jr. take to allow a patent?

Applications allowed by Peter Paras Jr. took 1,608 days on average from filing to allowance.

Which art unit does examiner Peter Paras Jr. work in?

Peter Paras Jr. examines applications in Art Unit 1632 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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