Prosecution Insights
Last updated: October 26, 2026

James Paul Shellhammer, USPTO Patent Examiner

Listed by the USPTO as SHELLHAMMER, JAMES PAUL

Tech Center 1700 • Art Units: 1617 1788 1793

This examiner grants 10% of resolved cases

Analysis

SHELLHAMMER, JAMES PAUL is assigned to tech center 1700 and art unit 1617. The profile includes 20 resolved cases, a 10.0% allowance rate, and a median of 1221 days to allowance. The interview lift is 18.8%, indicating a positive association between interviews and allowance outcomes.

MARS Incorporated, Ajinomoto Co., Inc., and Roquette Freres are the leading companies. The listed firms are Knobbe, Martens, Olson & Bear, LLP, Baker Botts L.L.P., and FBT Gibbons LLP. Because the case history is limited, practitioners should treat the metrics as preliminary and focus on application-specific claim analysis, with an interview used to pursue a defined prosecution objective.

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

Performance Statistics

10.0%
Allow Rate
-55.0% vs TC avg
93
Total Applications
+18.8%
Interview Lift
1221
Avg Prosecution Days
Based on 20 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
12.6%
§102 Novelty
50.2%
§103 Obviousness
24.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18288601 Instant Nutritious Rice Mixed with Mushroom Having Improved Taste, Nutrition, and Texture Final Rejection CJ CHEILJEDANG CORPORATION
18433372 Expression of Heme Biosynthesis and Heme Proteins in Edible Filamentous Fungi Non-Final OA The Regents of the University of California
18719427 BEER-TASTE BEVERAGE Final Rejection SUNTORY HOLDINGS LIMITED
18861782 Aquaculture Feed Non-Final OA Kyoto University

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Frequently Asked Questions

What is examiner James Paul Shellhammer's allowance rate?

10.0% of resolved applications examined by James Paul Shellhammer were allowed (20 resolved cases), compared with 34.1% across Art Unit 1617 over the last five years.

Does an interview help with examiner James Paul Shellhammer?

This examiner's interview lift is +18.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner James Paul Shellhammer take to allow a patent?

Applications allowed by James Paul Shellhammer took 1,221 days on average from filing to allowance.

Which art unit does examiner James Paul Shellhammer work in?

James Paul Shellhammer examines applications in Art Unit 1617 in Tech Center 1700 (Chemistry & Materials).

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