Prosecution Insights
Last updated: October 27, 2026

Samuel P Siefke, USPTO Patent Examiner

Listed by the USPTO as SIEFKE, SAMUEL P

Tech Center 1700 • Art Units: 1687 1732 1758 1772 1779 1797 1798

This examiner grants 63% of resolved cases

Analysis

SIEFKE, SAMUEL P works in tech center 1700 and art unit 1687. The profile records 1058 resolved cases, an allowance rate of 63.0%, and a median of 1237 days to allowance. The 17.8% interview lift is a meaningful percentage measure in relation to the allowance rate. The 1237-day median indicates that prosecution may remain extended even when the observed outcome is allowance.

The principal companies are Abbott Rapid Diagnostics International Unlimited Company, Robert Bosch GmbH, and Massachusetts Institute of Technology. The firms are Anova Law Group, PLLC, CASIMIR JONES, S.C., and DUANE MORRIS LLP - NY. The substantial case history supports use as a practical reference. Counsel can combine the recurring applicant and firm experience with early planning for timing and interview engagement.

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

Performance Statistics

63.0%
Allow Rate
-2.0% vs TC avg
1,096
Total Applications
+17.8%
Interview Lift
1237
Avg Prosecution Days
Based on 1058 resolved cases, 2023–2026

Rejection Statute Breakdown

1.6%
§101 Eligibility
38.1%
§102 Novelty
31.1%
§103 Obviousness
10.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18006445 MICROFLUIDIC ELECTROCHEMICAL ANALYTE DETECTORS Final Rejection Massachusetts Institute of Technology
18637148 SYSTEM AND METHOD FOR DEFORMING AND ANALYZING PARTICLES Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18715063 SAMPLE PREPARATION VALIDATION Non-Final OA Beckman Coulter, Inc.
17968598 MICROFLUIDIC CONNECTOR GROUP, MICROFLUIDIC DEVICE AND MANUFACTURING PROCESS THEREOF, IN PARTICULAR FOR A CARTRIDGE FOR SAMPLE PREPARATION AND MOLECULE ANALYSIS Non-Final OA STMICROELECTRONICS S.r.l.
17437948 APPARATUS FOR ANALYZING BIOLOGICAL SAMPLES Final Rejection RADIOMETER MEDICAL APS
18362751 TEXTURED WELL STRUCTURES FOR BIOSENSOR DEVICES Non-Final OA Analog Devices International Unlimited Company

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Frequently Asked Questions

What is examiner Samuel P Siefke's allowance rate?

63.0% of resolved applications examined by Samuel P Siefke were allowed (1,058 resolved cases), compared with 44.0% across Art Unit 1687 over the last five years.

Does an interview help with examiner Samuel P Siefke?

This examiner's interview lift is +17.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Samuel P Siefke take to allow a patent?

Applications allowed by Samuel P Siefke took 1,237 days on average from filing to allowance.

Which art unit does examiner Samuel P Siefke work in?

Samuel P Siefke examines applications in Art Unit 1687 in Tech Center 1700 (Chemistry & Materials).

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