Prosecution Insights
Last updated: October 26, 2026

Caleen O Sullivan, USPTO Patent Examiner

Listed by the USPTO as SULLIVAN, CALEEN O

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

This examiner grants 89% of resolved cases

Analysis

SULLIVAN, CALEEN O works in tech center 2800 and art unit 1722. The record includes 1146 resolved cases, an allowance rate of 88.7%, and a median of 763 days to allowance. The large case record gives the favorable allowance outcome substantial support, while the median indicates a comparatively shorter path to allowance within the available data. These figures can inform portfolio timing and response planning.

Interviews are associated with an 11.4% lift, indicating a limited positive measure in the record. Fujifilm Corporation, Shin-Etsu Chemical Co., Ltd., and Applied Materials Inc. are the listed companies. Knobbe, Martens, Olson & Bear, LLP, GREENBLUM & BERNSTEIN, P.L.C., and JCIPRNET are the listed firms with recorded experience before this examiner.

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

Performance Statistics

88.7%
Allow Rate
+20.7% vs TC avg
1,171
Total Applications
+11.4%
Interview Lift
763
Avg Prosecution Days
Based on 1146 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
19.7%
§102 Novelty
60.4%
§103 Obviousness
5.6%
§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
18584952 PHOTOSENSITIVE COMPOSITION, TRANSFER FILM, PATTERN FORMING METHOD, METHOD FOR MANUFACTURING CIRCUIT WIRING, AND METHOD FOR MANUFACTURING TOUCH PANEL 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
18617380 MULTIPATTERNING WITH CROSSLINKABLE OVERCOAT Non-Final OA Tokyo Electron Limited
18498698 ENDPOINT DETECTION IN DRY DEVELOPMENT OF PHOTORESIST Non-Final OA Tokyo Electron Limited
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.
18630544 PHOTO-PATTERNABLE LATENT-CHEMISTRY INORGANIC MATERIALS Non-Final OA Meta Platforms Technologies, LLC
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.

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Frequently Asked Questions

What is examiner Caleen O Sullivan's allowance rate?

88.7% of resolved applications examined by Caleen O Sullivan were allowed (1,146 resolved cases), compared with 60.4% across Art Unit 1722 over the last five years.

Does an interview help with examiner Caleen O Sullivan?

This examiner's interview lift is +11.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Caleen O Sullivan take to allow a patent?

Applications allowed by Caleen O Sullivan took 763 days on average from filing to allowance.

Which art unit does examiner Caleen O Sullivan work in?

Caleen O Sullivan examines applications in Art Unit 1722 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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