Prosecution Insights
Last updated: October 26, 2026

Crystal L Hammond, USPTO Patent Examiner

Listed by the USPTO as HAMMOND, CRYSTAL L

Tech Center 2800 • Art Units: 2819 2838 2844 2845

This examiner grants 88% of resolved cases

Analysis

HAMMOND, CRYSTAL L has resolved 936 cases in Tech Center 2800 and Art Unit 2819. The allowance rate is 87.8%, while the median time to allowance is 727 days. The large resolved-case record makes these outcome measures useful for portfolio screening, although individual results will still depend on claim scope and technology.

The interview lift is 3.1%, indicating little measured change associated with interviews in this record. Practitioners may therefore place greater emphasis on written claim presentation and carefully targeted amendments unless case-specific circumstances support an interview. The listed companies are Huawei Technologies Co., Ltd., Denso Corporation, and Sumitomo Electric Industries Ltd. The listed firms are Anova Law Group, PLLC, Brooks Kushman P.C., and NGUYEN TARBET IP Law.

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

Performance Statistics

87.8%
Allow Rate
+19.8% vs TC avg
946
Total Applications
+3.1%
Interview Lift
727
Avg Prosecution Days
Based on 936 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
53.4%
§102 Novelty
38.3%
§103 Obviousness
2.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18629001 RADOME, STACKED PLATE AND COMPOSITE PLATE THAT ARE USED FOR RADOME, AND MANUFACTURING METHOD Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
19089844 OUTPUT POTENTIAL SWITCHING CIRCUIT Non-Final OA Denso Corporation
19120068 IN-VEHICLE CONTROL DEVICE Non-Final OA Sumitomo Electric Industries, Ltd.

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Frequently Asked Questions

What is examiner Crystal L Hammond's allowance rate?

87.8% of resolved applications examined by Crystal L Hammond were allowed (936 resolved cases), compared with 69.7% across Art Unit 2819 over the last five years.

Does an interview help with examiner Crystal L Hammond?

This examiner's interview lift is +3.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Crystal L Hammond take to allow a patent?

Applications allowed by Crystal L Hammond took 727 days on average from filing to allowance.

Which art unit does examiner Crystal L Hammond work in?

Crystal L Hammond examines applications in Art Unit 2819 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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