Prosecution Insights
Last updated: August 17, 2026

Examiner: LEONARD, ARTHUR S

Tech Center 1700 • Art Units: 1631 1633 1643 1651 1798

This examiner grants 51% of resolved cases

Performance Statistics

50.9%
Allow Rate
-14.1% vs TC avg
584
Total Applications
+50.5%
Interview Lift
1256
Avg Prosecution Days
Based on 513 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
15.4%
§102 Novelty
42.9%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18980456 Targeted CRISPR Delivery Platforms Non-Final OA University of Massachusetts
18612111 Targeted CRISPR Delivery Platforms Non-Final OA University of Massachusetts
18049724 COMPLEXES FOR GENE DELETION AND EDITING Final Rejection UNIVERSITY OF MASSACHUSETTS
18554139 COMPOSITIONS AND METHODS FOR DELIVERY OF THERAPEUTIC AGENTS TO ACCEPTOR CELLS Non-Final OA FLAGSHIP PIONEERING INNOVATIONS VI, LLC
18448499 KIT FOR PRODUCING ADENO-ASSOCIATED VIRUS, AND USE THEREOF Non-Final OA FUJIFILM Corporation
18282645 METHODS AND MATERIALS FOR TREATING PROPIONIC ACIDEMIA Non-Final OA Mayo Foundation for Medical Education and Research
17933023 METHODS FOR MODIFICATION OF TARGET NUCLEIC ACIDS Final Rejection BASF PLANT SCIENCE COMPANY GMBH
17933005 METHODS FOR MODIFICATION OF TARGET NUCLEIC ACIDS Final Rejection BASF Plant Science Company GmbH
17102291 Intrathecal Delivery of Recombinant Adeno-Associated Virus 9 Final Rejection OHIO STATE INNOVATION FOUNDATION
18163253 Methods and Compositions to Target and Treat Macrophages Non-Final OA Massachusetts Institute of Technology
17865375 Programmable Modification of DNA Final Rejection Massachusetts Institute of Technology
17831745 DELIVERY, USE AND THERAPEUTIC APPLICATIONS OF THE CRISPR-CAS SYSTEMS AND COMPOSITIONS FOR GENOME EDITING Final Rejection Massachusetts Institute of Technology
18547348 VIRAL VECTOR-BASED GENE THERAPY FOR OCULAR CONDITIONS Non-Final OA The Regents of the University of Colorado, A Body Corporate
18902038 POLYMER NANOPARTICLE COMPOSITIONS FOR NON-VIRAL GENE DELIVERY Final Rejection BATTELLE MEMORIAL INSTITUTE
18123413 METHOD AND SYSTEM FOR DESIGNING POLYNUCLEOTIDE SEQUENCES AND POLYNUCLEOTIDE SEQUENCES OBTAINED THEREBY Non-Final OA Ramot at Tel-Aviv University Ltd.
16959878 TRANSGENIC EUKARYOTIC ORGANISMS AND METHODS FOR GENDER SELECTION Final Rejection RAMOT AT TEL-AVIV UNIVERSITY LTD.

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