Prosecution Insights
Last updated: May 29, 2026

Examiner: WITHERSPOON, SIKARL A

Tech Center 1600 • Art Units: 1621 1622 1671 1692

This examiner grants 86% of resolved cases

Performance Statistics

86.1%
Allow Rate
+26.1% vs TC avg
1,672
Total Applications
-20.4%
Interview Lift
632
Avg Prosecution Days
Based on 1645 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
8.2%
§102 Novelty
61.3%
§103 Obviousness
5.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18264160 ORGANIC TERTIARY OR QUATERNARY AMMONIUM SALTS AS CATALYSTS IN THE FORMATION OF GAMMA, DELTA-UNSATURATED KETONES Non-Final OA DSM IP ASSETS B.V.
17919939 PROCESS FOR THE PREPARATION OF ALPHA,OMEGA-ALKANEDIOL MONONITRATE Final Rejection DSM IP ASSETS B.V.
17794322 COMPOSITION AND METHOD FOR PRODUCING SAME Non-Final OA DAICEL CORPORATION
18279862 PRODUCTION EQUIPMENT AND PRODUCTION METHOD FOR CUMENE HYDROPEROXIDE Non-Final OA Sumitomo Chemical Company, Limited
18276341 PROCESS AND PLANT FOR PRODUCING E-FUELS Non-Final OA TOPSOE A/S
18550801 PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS Non-Final OA SPECIALTY OPERATIONS FRANCE
18550941 PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS Non-Final OA SPECIALTY OPERATIONS FRANCE
18277158 METHOD FOR PRODUCING CYCLOHEXENONE COMPOUND Non-Final OA API CORPORATION
18210862 TRANS-CYCLOOCTENES WITH HIGH REACTIVITY AND FAVORABLE PHYSIOCHEMICAL PROPERTIES Non-Final OA UNIVERSITY OF DELAWARE
18198809 Branched Aldehyde Production Non-Final OA SCION Holdings LLC
17928368 Branched Alcohols Non-Final OA SCION Holdings LLC
18251256 HYDROFORMYLATION REACTION PROCESSES Non-Final OA Dow Technology Investments LLC
18108509 VITAMIN C PREPARATION Non-Final OA ONE INNOVATION LABS, LLC
18079344 VITAMIN C PREPARATION Non-Final OA ONE INNOVATION LABS, LLC
18154917 INTERMEDIATE, PREPARING METHOD THEREOF, AND METHOD OF PREPARING DRUG Non-Final OA Heron Neutron Medical Corp.
18002673 USE OF HIGH MOLECULAR WEIGHT HYALURONIC ACID AS OCULAR TRANSPORTING VEHICLE Final Rejection I.COM MEDICAL GMBH
17907414 USE OF CONJUGATES COMPRISING TUMOUR-SELECTIVE LIGANDS AND GROUPS CAPABLE OF RELEASING CARBON MONOXIDE (CO), FOR EXERTING IMMUNOMODULATORY EFFECTS IN CANCER TREATMENT Non-Final OA Faculdade de Medicina da Universidade de Lisboa

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