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Last updated: August 18, 2026

Examiner: GEISBERT, WILLIAM ADDISON

Tech Center 1700 • Art Units: 1779

This examiner grants 35% of resolved cases

Performance Statistics

34.8%

Allow Rate

-30.2% vs TC avg

59

Total Applications

+36.7%

Interview Lift

1221

Avg Prosecution Days

Based on 23 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%

§101 Eligibility

19.1%

§102 Novelty

54.8%

§103 Obviousness

22.2%

§112 Clarity

Currently Pending Office Actions

App #	Title	Status	Assignee
17892347	MULTI-STAGE VACUUM MEMBRANE DISTILLATION SYSTEM AND PROCESS	Final Rejection	King Fahd University of Petroleum & Minerals
18706825	WATER TREATMENT WITH PHOTOCATALYTIC TECHNOLOGY	Non-Final OA	The Regents of the University of California
18015645	METHOD FOR FLOTATION OF A SILICATE-CONTAINING IRON ORE	Non-Final OA	BASF SE
18011322	WATER TREATMENT APPARATUS, APPARATUS FOR PRODUCING ULTRAPURE WATER AND WATER TREATMENT METHOD	Non-Final OA	ORGANO CORPORATION
18499190	METHODS OF CALENDARING AND/OR LAMINATING FIBER WEBS	Final Rejection	Hollingsworth & Vose Company
17946452	REDOX SHUTTLE ASSISTED ELECTRODEIONIZATION	Final Rejection	Genesee Valley Innovations, LLC
17946003	CATION EXCHANGE MEMBRANES FROM STRUCTURED ORGANIC FILMS AND METHODS THEREOF	Final Rejection	Genesee Valley Innovations, LLC
17983494	SWIRL-TYPE DEMULSIFICATION AND DEHYDRATION DEVICE FOR OIL-WATER EMULSION	Final Rejection	CHONGQING TECHNOLOGY AND BUSINESS UNIVERSITY

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