Prosecution Insights
Last updated: April 19, 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
1666
Total Applications
-21.0%
Interview Lift
696
Avg Prosecution Days
Based on 1630 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
19.1%
§102 Novelty
44.6%
§103 Obviousness
17.5%
§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.
18283863 METHOD FOR PRODUCING FORM-II TYPE REDUCED COENZYME Q10 CRYSTAL OR CRYSTALLINE SOLID OF SAME, AND CRYSTALLIZING APPARATUS Non-Final OA KANEKA CORPORATION
17781328 NITRATES OF ETHERS OF GLYCEROL AND ETHANOL AS DIESEL CETANE IMPROVERS AND THE PRODUCTION PROCESS OF THE SAME Final Rejection Petróleo Brasileiro S.A. - Petrobras
18270360 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ALPHA-METHYLSTYRENE Non-Final OA Covestro Deutschland AG
18270384 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF BENZENE Non-Final OA Covestro Deutschland AG
17794322 COMPOSITION AND METHOD FOR PRODUCING SAME Non-Final OA DAICEL CORPORATION
18248565 COMPOSITION Final Rejection ADEKA CORPORATION
18276341 PROCESS AND PLANT FOR PRODUCING E-FUELS Non-Final OA TOPSOE A/S
18755473 Branched Alcohols Non-Final OA SCION Holdings LLC
18655285 Branched Products Non-Final OA SCION Holdings LLC
17928368 Branched Alcohols Non-Final OA SCION Holdings LLC
18108509 VITAMIN C PREPARATION Non-Final OA ONE INNOVATION LABS, LLC
18079344 VITAMIN C PREPARATION Non-Final OA ONE INNOVATION LABS, LLC
18558227 TERPINEOL WITH CONTROLLED OPTICAL ROTATION FROM GUM TERPENTINE OIL AND PROCESS THEREOF Non-Final OA HIMACHAL TEREPENE PRODUCTS PVT. LTD.
18550941 PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS Non-Final OA SPECIALTY OPERATIONS FRANCE
18550801 PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS Non-Final OA SPECIALTY OPERATIONS FRANCE
18550931 METHOD FOR PURIFYING VANILLIN OR DERIVATIVES THEREOF OBTAINED BY A BIOTECHNOLOGICAL METHOD Non-Final OA RHODIA OPERATIONS FRANCE
18251256 HYDROFORMYLATION REACTION PROCESSES Non-Final OA Dow Technology Investments LLC
18251009 PROCESSES TO IMPROVE CATALYTIC METAL ACCOUNTABILITY IN HYDROFORMYLATION PROCESSES Non-Final OA Dow Technology Investments LLC
18277158 METHOD FOR PRODUCING CYCLOHEXENONE COMPOUND Non-Final OA API CORPORATION
18260558 PROCESS FOR SEPARATING HEAVY BY-PRODUCTS AND CATALYST LIGAN FROM A VAPOUR STREAM COMPRISING ALDEHYDE Non-Final OA JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED
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

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month