Prosecution Insights
Last updated: October 26, 2026

Jonathan G Jelsma, USPTO Patent Examiner

Listed by the USPTO as JELSMA, JONATHAN G

Tech Center 2800 • Art Units: 1721 1722 1723 1795 2837

This examiner grants 70% of resolved cases

Analysis

JELSMA, JONATHAN G examines in tech center 2800 and art unit 1721. The record includes 930 resolved cases, a 69.9% allowance rate, and a median of 1139 days to allowance. The 14.7% interview lift provides a separate measure of interview-associated outcomes. Practitioners can use this profile to plan for the reported duration and to decide whether an interview is likely to add value to written arguments and amendments.

The principal companies are LG Energy Solution Ltd., Samsung SDI Co., Ltd., and Contemporary Amperex Technology Co., Limited. The associated firms are Womble Bond Dickinson US LLP, AJU IP Global PLLC, and CROWELL & MORING LLP. Their filings offer relevant examples for battery and energy-storage claim strategy in art unit 1721.

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

Performance Statistics

69.9%
Allow Rate
+1.9% vs TC avg
964
Total Applications
+14.7%
Interview Lift
1139
Avg Prosecution Days
Based on 930 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
23.5%
§102 Novelty
51.4%
§103 Obviousness
18.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18696603 Busbar Assembly Capable of Preventing Damage by Fire and Battery Pack Including the Same Non-Final OA LG Energy Solution, Ltd.
18689147 Tape for Electrode Including Adhesive Part Having Pattern Non-Final OA LG Energy Solution, Ltd.
18285811 Secondary Battery, Battery Pack and Device Including the Same Non-Final OA LG Energy Solution, Ltd.
18240811 Negative Electrode Including Lithium-Alkaline Earth Metal Alloy and Lithium Ion Secondary Battery Including the Same Final Rejection LG Energy Solution, Ltd.
18266992 LITHIUM SECONDARY BATTERY HAVING IGNITION SUPPRESSION STRUCTURE Non-Final OA LG ENERGY SOLUTION, LTD.
17922901 Protective Device for Battery Cells Final Rejection Bayerische Motoren Werke Aktiengesellschaft
18410642 ENERGY STORAGE SYSTEM AND FIRE PROTECTION METHOD FOR ENERGY STORAGE SYSTEM Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18484720 BATTERY PACK, METHOD FOR MANUFACTURING BATTERY PACK AND VEHICLE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18611040 BATTERY PACK Non-Final OA Samsung SDI Co., Ltd.
18419346 BATTERY PACK Non-Final OA Samsung SDI Co., Ltd.
18303343 POSITIVE ELECTRODE, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18308354 BUSBAR MODULE Non-Final OA Yazaki Corporation

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Frequently Asked Questions

What is examiner Jonathan G Jelsma's allowance rate?

69.9% of resolved applications examined by Jonathan G Jelsma were allowed (930 resolved cases), compared with 40.6% across Art Unit 1721 over the last five years.

Does an interview help with examiner Jonathan G Jelsma?

This examiner's interview lift is +14.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jonathan G Jelsma take to allow a patent?

Applications allowed by Jonathan G Jelsma took 1,139 days on average from filing to allowance.

Which art unit does examiner Jonathan G Jelsma work in?

Jonathan G Jelsma examines applications in Art Unit 1721 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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