Prosecution Insights
Last updated: October 26, 2026

Diem K Cao, USPTO Patent Examiner

Listed by the USPTO as CAO, DIEM K

Tech Center 2100 • Art Units: 2194 2196

This examiner grants 81% of resolved cases

Analysis

CAO, DIEM K works in tech center 2100 and art unit 2194. The profile records 685 resolved cases, an 80.6% allowance rate, and an 18.7% interview lift. The median days to allowance are 1257.

The listed companies are Dell Products L.P., Huawei Technologies Co., Ltd., and International Business Machines Corporation. The listed firms are BROADVIEW IP LAW, PC, Charney IP Law LLC, and Essential Patents Group, LLP. The allowance rate is favorable and the interview lift is positive, supporting a prosecution approach that combines disciplined written claim presentation with targeted examiner interviews.

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

Performance Statistics

80.6%
Allow Rate
+25.6% vs TC avg
714
Total Applications
+18.7%
Interview Lift
1257
Avg Prosecution Days
Based on 685 resolved cases, 2023–2026

Rejection Statute Breakdown

12.0%
§101 Eligibility
13.4%
§102 Novelty
47.9%
§103 Obviousness
19.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18832889 METHOD AND DEVICE FOR PROCESSING A TASK, ELECTRONIC DEVICE, AND STORAGE MEDIUM Non-Final OA Beijing Zitiao Network Technology Co., Ltd.
18476200 METHOD FOR LOADING COMPONENT OF APPLICATION AND RELATED APPARATUS Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
18452046 MULTI-CORE PROCESSOR, MULTI-CORE PROCESSOR PROCESSING METHOD, AND RELATED DEVICE Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
17501391 Configuring And Maintaining An Environment Using Configuration Templates Final Rejection PURE STORAGE, INC.
18109774 TECHNOLOGIES FOR COORDINATING DISAGGREGATED ACCELERATOR DEVICE RESOURCES Non-Final OA Intel Corporation
18666118 ENABLING COMPUTATIONAL STORAGE OPERATIONS THROUGH LEGACY CLIENT STORAGE INTERFACES Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18342006 PROVIDING DEDICATED MEMORY ASSIGNMENTS TO APPLICATIONS Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18086442 APPLICATION PROGRAMMING INTERFACE TO STORE INFORMATION IN A PLURALITY OF STORAGE LOCATIONS Final Rejection NVIDIA Corporation
18650517 APPLICATION PROGRAMMING INTERFACE MANAGEMENT IN AN INFORMATION PROCESSING SYSTEM Non-Final OA Dell Products L.P.
18478748 COMPOSED API REQUESTS WITH ZERO-SHOT LANGUAGE MODEL INTERFACES Non-Final OA Dell Products L.P.
18226893 Data Center Workload Orchestration Via A Data Center Monitoring And Management Operation Non-Final OA Dell Products L.P.
18762293 AUTO-SCALING COMPUTING RESOURCE INSTANCES OF A SERVICE FOR A PREDICTED WORKLOAD Non-Final OA ADOBE INC.

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Frequently Asked Questions

What is examiner Diem K Cao's allowance rate?

80.6% of resolved applications examined by Diem K Cao were allowed (685 resolved cases), compared with 68.9% across Art Unit 2194 over the last five years.

Does an interview help with examiner Diem K Cao?

This examiner's interview lift is +18.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Diem K Cao take to allow a patent?

Applications allowed by Diem K Cao took 1,257 days on average from filing to allowance.

Which art unit does examiner Diem K Cao work in?

Diem K Cao examines applications in Art Unit 2194 in Tech Center 2100 (Computing & Software).

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