Prosecution Insights
Last updated: April 19, 2026

Robert Lelkes, Patent Attorney

5 pending office actions • 5 clients

Portfolio Summary

5
Total Pending OAs
3
Final Rejections
2
Non-Final OAs

Client Portfolio (5 clients)

Client (Assignee)Pending OAs
Instrauction GmbH 1
Instrauction GmbH 1
Kronos International, Inc. 1
Hubergroup Deutschland GmbH 1
Chromatic 3D Materials, Inc. 1

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
18294612 REMOVAL OF VIRUSES FROM WATER BY FILTRATION Instrauction GmbH ALI, WAQAAS A 1777 Non-Final OA Feb 02, 2024
18574373 COMPOSITE MATERIAL FOR MECHANICAL FILTRATION AND CHEMICAL BINDING OF SUBSTANCES, BACTERIA AND VIRUSES FROM SOLUTIONS Instrauction GmbH NORRIS, CLAIRE A 1779 Non-Final OA Dec 27, 2023
18106325 COLOR-NEUTRAL RUTILE PIGMENT PARTICLE Kronos International, Inc. HEINCER, LIAM J 1767 Final Rejection Feb 06, 2023
17782340 PRINTING INK OR VARNISH COMPOSITION CONTAINING OXYMETHYLENE ETHER Hubergroup Deutschland GmbH BARZACH, JEFFREY EUGENE 1731 Final Rejection Jun 03, 2022
17535526 HEIGHT ADJUSTMENT IN A METHOD OF THREE DIMENSIONAL PRINTING Chromatic 3D Materials, Inc. DARNELL, BAILEIGH K 1743 Final Rejection Nov 24, 2021

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