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Inventor profile of:

Roger JOHNS

City:

Houston, Texas

Country:

United States

Published Applications:

1

Last publication date:

2021-11-25

Top Assignees for applications by Roger JOHNS

The entities that hold a legal rights for patent applications filed by inventor JOHNS Roger:

SPM Oil & Gas PC LLC 1 Fort Worth, TX United States

Recent patent applications by JOHNS Roger

Roger JOHNS from Houston, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-11-25

US20210363029A1

Chemistry; metallurgy

Frac sand separator system

InventorID:

5249231 ⎘