Prosecution Insights
Last updated: April 19, 2026

Examiner: CONSTANTINE, CHARLES Z

Tech Center 1600 • Art Units: 1651 1657

This examiner grants 58% of resolved cases

Performance Statistics

58.4%
Allow Rate
-1.6% vs TC avg
441
Total Applications
+49.3%
Interview Lift
1230
Avg Prosecution Days
Based on 421 resolved cases, 2023–2026

Rejection Statute Breakdown

5.3%
§101 Eligibility
20.1%
§102 Novelty
31.2%
§103 Obviousness
27.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18269694 ATP-PRT VARIANT WITH REDUCED FEEDBACK INHIBITION BY HISTIDINE, AND HISTIDINE-PRODUCING STRAIN EXPRESSING SAME Final Rejection DAESANG CORPORATION
18255943 NOVEL SCHIZOCHYTRIUM SP. STRAIN AND POLYUNSATURATED FATTY ACID PRODUCTION METHOD USING SAME Final Rejection CJ CHEILJEDANG CORPORATION
18631396 METHOD TO SCREEN COMPOUNDS FOR ANTIFUNGAL ACTIVITY AND PHARMACEUTICAL COMPOSITIONS AND METHODS TO TREAT FUNGAL DISEASES BY INHIBITING SPORE GERMINATION Final Rejection Wisconsin Alumni Research Foundation
18576585 A GENETICALLY ENGINEERED BACTERIUM WITH LACZ INACTIVATION AND ITS USE IN PRODUCING HUMAN MILK OLIGOSACCHARIDES Non-Final OA SYNAURA BIOTECHNOLOGY (SHANGHAI) CO., LTD.
18544879 GLUCOSYL STEVIA COMPOSITION Non-Final OA PURECIRCLE SDN BHD
18142850 GLUCOSYL STEVIA COMPOSITION Final Rejection PURECIRCLE SDN BHD
18002292 SALMONELLA STRAIN FOR TREATING CANCER AND USE THEREOF Non-Final OA INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
17744136 METHODS AND SYSTEMS FOR GENERATING BIOLOGICAL MOLECULES Non-Final OA Machine Bio Inc.
18320182 System and Method for Liquid Culture of Anaerobic or Microaerophilic Microorganisms Non-Final OA NEOGEN FOOD SAFETY US HOLDCO CORPORATION
18135614 METHODS FOR SYNTHESIZING ANTICOAGULANT POLYSACCHARIDES Non-Final OA OPTIMVIA, LLC
16368330 METHODS AND PHARMACEUTICALS FOR TREATMENT OF VIRAL INFECTIONS OF THE EYE Final Rejection Okogen, Inc.
17874805 Universal Calibration Method for Assaying Enzymatic Inhibitors Final Rejection Diagnostica Stago

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