Prosecution Insights
Last updated: October 26, 2026

Sharon A Polk, USPTO Patent Examiner

Listed by the USPTO as POLK, SHARON A

Tech Center 2800 • Art Units: 2853

This examiner grants 92% of resolved cases

Analysis

Sharon A. Polk has 877 resolved cases in Tech Center 2800 and Art Unit 2853. The profile records a 91.6% allowance rate and a median of 671 days to allowance. Interviews are associated with a 5.9% lift in the allowance rate. The case volume and allowance record give applicants a substantial prosecution history against which to consider response sequencing and expected examination activity.

The leading companies are Seiko Epson Corporation, Canon Inc., and Brother Kogyo Kabushiki Kaisha. The leading firms are WORKMAN NYDEGGER, Studebaker Brackett PLLC, and KENEALY VAIDYA LLP. For practitioners, the profile supports attention to efficient claim presentation and early identification of issues that may affect allowance timing.

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

Performance Statistics

91.6%
Allow Rate
+23.6% vs TC avg
893
Total Applications
+5.9%
Interview Lift
671
Avg Prosecution Days
Based on 877 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
28.4%
§102 Novelty
43.5%
§103 Obviousness
19.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19170537 PRINTING CASSETTE INCLUDING PRINTING TAPE ROLL AND FIRST CASE HAVING FIRST OUTER SURFACE, SECOND OUTER SURFACE, THIRD OUTER SURFACE AND FOURTH OUTER SURFACE Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
18955382 PRINTING METHOD AND PRINTING APPARATUS Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19079907 EXPOSURE HEAD Non-Final OA CANON KABUSHIKI KAISHA
19049774 PRINTING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19087740 LIQUID EJECTION DEVICE AND CONTROL METHOD FOR LIQUID EJECTION DEVICE Non-Final OA SEIKO EPSON CORPORATION
19057570 RECORDING DEVICE AND CUTTER UNIT Non-Final OA SEIKO EPSON CORPORATION
19001781 PRINTING APPARATUS Non-Final OA SEIKO EPSON CORPORATION
18969196 INKJET RECORDING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
18945084 MAINTENANCE DEVICE AND INKJET RECORDING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.

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Frequently Asked Questions

What is examiner Sharon A Polk's allowance rate?

91.6% of resolved applications examined by Sharon A Polk were allowed (877 resolved cases), compared with 72.7% across Art Unit 2853 over the last five years.

Does an interview help with examiner Sharon A Polk?

This examiner's interview lift is +5.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sharon A Polk take to allow a patent?

Applications allowed by Sharon A Polk took 671 days on average from filing to allowance.

Which art unit does examiner Sharon A Polk work in?

Sharon A Polk examines applications in Art Unit 2853 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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