Prosecution Insights
Last updated: October 27, 2026

Donna Michelle Nestor, USPTO Patent Examiner

Listed by the USPTO as NESTOR, DONNA MICHELLE

Tech Center 1600 • Art Units: 1621 1622 1626 1627 1629

This examiner grants 57% of resolved cases

Analysis

Donna Michelle Nestor is an examiner in Tech Center 1600 with 83 resolved cases. The examiner maintains an allowance rate of 56.6 percent in Art Unit 1621. This rate applies to a diverse group of companies, including Hoffmann-La Roche Inc. and Remix Therapeutics Inc., indicating the frequency of grants within this portfolio.

A notable metric is the interview lift of 44.2 percent. This figure suggests that interviews are associated with a significant increase in the probability of allowance compared to the 56.6 percent baseline. For firms like GOODWIN PROCTER LLP and LANDO & ANASTASI, LLP, requesting an interview may be a highly effective strategy to resolve outstanding rejections and clarify technical nuances.

The median days to allowance is 1161. This duration provides a benchmark for applicants like Novartis AG and MARSHALL, GERSTEIN & BORUN LLP when planning their prosecution strategy. Given the 44.2 percent lift associated with interviews, practitioners might use verbal communication to potentially move cases toward a resolution. The data from the 83 resolved cases suggests that direct engagement is a key factor in successful outcomes.

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

Performance Statistics

56.6%
Allow Rate
-3.4% vs TC avg
124
Total Applications
+44.2%
Interview Lift
1161
Avg Prosecution Days
Based on 83 resolved cases, 2023–2026

Rejection Statute Breakdown

3.2%
§101 Eligibility
15.6%
§102 Novelty
33.0%
§103 Obviousness
27.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18665776 SYNTHESIS OF 2'-(7,7-dimethyl-1'H,7H-spiro[furo[3,4-b]pyridine-5,4'-piperidin]-1'-yl)-1,3-dihydro-4'H-spiro[indene-2,5'-[1,3]oxazol]-4'-one Non-Final OA Hoffmann-La Roche Inc.
18479596 PROCESSES FOR MAKING BICYCLIC KETONE COMPOUNDS Final Rejection Hoffmann-La Roche Inc.
18982128 TABLET FORMULATION OF 2-FLUORO-N-METHYL-4-[7-(QUINOLIN-6-YLMETHYL)IMIDAZO[1,2-B][1,2,4]TRIAZIN-2-YL]BENZAMIDE Non-Final OA NOVARTIS AG
17623060 COMPOSITIONS AND METHODS OF TREATING LIVER CANCERS Final Rejection The Johns Hopkins University
18294191 MICROBIOCIDAL PYRAZOLE DERIVATIVES Non-Final OA SYNGENTA CROP PROTECTION AG
18577851 CDK19-SELECTIVE INHIBITORS, AND METHODS OF USE THEREOF Final Rejection THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
17995806 PI3 KINASE INHIBITORS AND USES THEREOF Non-Final OA Purdue Research Foundation
18262053 ARTEMISININ-PROTEASOME INHIBITOR CONJUGATES AND THEIR USE IN THE TREATMENT OF DISEASE Final Rejection CORNELL UNIVERSITY
18548716 COMPOUND AND RADIOACTIVE LABELING COMPOUND Final Rejection KYOTO UNIVERSITY

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Frequently Asked Questions

What is examiner Donna Michelle Nestor's allowance rate?

56.6% of resolved applications examined by Donna Michelle Nestor were allowed (83 resolved cases), compared with 46.0% across Art Unit 1621 over the last five years.

Does an interview help with examiner Donna Michelle Nestor?

This examiner's interview lift is +44.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Donna Michelle Nestor take to allow a patent?

Applications allowed by Donna Michelle Nestor took 1,161 days on average from filing to allowance.

Which art unit does examiner Donna Michelle Nestor work in?

Donna Michelle Nestor examines applications in Art Unit 1621 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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