Prosecution Insights
Last updated: October 01, 2026

Examiner: SULLIVAN, CALEEN O

Tech Center 2800 • Art Units: 1722 1795 2812 2896 2899

This examiner grants 89% of resolved cases

Analysis

Caleen O. Sullivan works within Tech Center 2800 and Art Unit 1722. The examiner has managed 1142 resolved cases in this unit. An allowance rate of 88.6 percent indicates the share of cases that result in a patent. Practitioners can use the 11.4 percent interview lift to assess the impact of a meeting. This lift shows that the probability of allowance is higher when an interview occurs. The 11.4 percent figure is a comparison to the baseline allowance rate of 88.6 percent.

The median time to allowance is 762 days. This 762-day duration represents the time required to reach an allowance. Art Unit 1722 is the specific group where these 1142 resolved cases were examined. Tech Center 2800 is the administrative division for this examiner. Practitioners can use these metrics to plan for the duration of the prosecution process. The data indicates the frequency of grants and the impact of direct communication with the examiner during the application cycle.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

88.6%
Allow Rate
+20.6% vs TC avg
1,148
Total Applications
+11.4%
Interview Lift
762
Avg Prosecution Days
Based on 1142 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
19.5%
§102 Novelty
60.4%
§103 Obviousness
5.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18603775 METHOD FOR INSPECTING TREATMENT LIQUID AND METHOD FOR PRODUCING TREATMENT LIQUID Non-Final OA FUJIFILM Corporation
18418331 ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE FILM, PATTERN FORMING METHOD, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE Non-Final OA FUJIFILM Corporation
18418023 ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE FILM, PATTERN FORMING METHOD, METHOD FOR MANUFACTURING ELECTRONIC DEVICE, RESIN, AND METHOD FOR MANUFACTURING RESIN Non-Final OA FUJIFILM Corporation
18268340 METHOD FOR MANUFACTURING SEMICONDUCTOR INTEGRATED CIRCUIT, METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE, AND EXPOSURE APPARATUS Non-Final OA NIKON CORPORATION
18765710 ADVANCED-PACKAGING HIGH-VOLUME-MODE DIGITAL-LITHOGRAPHY-TOOL Non-Final OA Applied Materials, Inc.
18581290 EUV SENSITIVE METAL OXIDE MATERIAL AS UNDERLAYER FOR THIN CAR TO IMPROVE PATTERN TRANSFER Non-Final OA Applied Materials, Inc.
18617380 MULTIPATTERNING WITH CROSSLINKABLE OVERCOAT Non-Final OA Tokyo Electron Limited
18615346 METHOD FOR PATTERNING MASK LAYER USING METAL-CONTAINING RESIST Non-Final OA Tokyo Electron Limited
18498698 ENDPOINT DETECTION IN DRY DEVELOPMENT OF PHOTORESIST Non-Final OA Tokyo Electron Limited
18411376 REFLECTIVE MASK BLANK, REFLECTIVE MASK, METHOD OF MANUFACTURING REFLECTIVE MASK BLANK, AND METHOD OF MANUFACTURING REFLECTIVE MASK Non-Final OA AGC Inc.
18411594 NANOTUBE-BASED PELLICLE FOR EXTREME ULTRAVIOLET LITHOGRAPHY AND RELATED MANUFACTURING METHOD Non-Final OA KOREA ELECTRONICS TECHNOLOGY INSTITUTE
18562685 METROLOGY SYSTEMS, TEMPORAL AND SPATIAL COHERENCE SCRAMBLER AND METHODS THEREOF Non-Final OA ASML Holding N.V.
18598857 ONIUM SALT MONOMER, POLYMER, CHEMICALLY AMPLIFIED RESIST COMPOSITION AND PATTERNING PROCESS Non-Final OA Shin-Etsu Chemical Co., Ltd.
18205125 RESIST COMPOSITION AND PATTERN FORMING PROCESS Non-Final OA Shin-Etsu Chemical Co., Ltd.
18291740 RESIST COMPOSITION AND RESIST FILM FORMING METHOD USING SAME Non-Final OA MITSUBISHI GAS CHEMICAL COMPANY, INC.
18383612 MASSIVE MEASUREMENT SAMPLING USING MULTIPLE CHUCKS AND OPTICAL COLUMNS Non-Final OA KLA Corporation
18575890 HIGH REFRACTIVE INDEX PHOTORESIST COMPOSITION Non-Final OA Dow Silicones Corporation

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