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Inventor profile of:

John L. FEATHERSTONE

City:

El Centro, California

Country:

United States

Published Applications:

Last publication date:

2026-02-05

Top Assignees for applications by John L. FEATHERSTONE

The entities that hold a legal rights for patent applications filed by inventor FEATHERSTONE John L.:

Midamerican Energy Holdings Company 3 Omaha, NE United States
ENERGYSOURCE MINERALS LLC 3 San Diego, CA United States
ILIAD IP COMPANY, LLC 3 Carlsbad, CA United States
ENERGYSOURCE MINERALS LLC 2 Carlsbad, CA United States
Berkshire Hathaway Energy Company 1 Des Moines, IA United States
Ecolab USA Inc. 1 Naperville, IL United States

Recent patent applications by FEATHERSTONE John L.

John L. FEATHERSTONE from El Centro, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2026-02-05

US20260035310A1

Chemistry; metallurgy

PROCESS AND CIRCUIT FOR PRODUCING ENHANCED MANGANESE-ZINC FILTER CAKE COMPOSITIONS WITH REDUCED CHLORIDE CONCENTRATIONS

#2 | 2025-12-25

US20250389001A1

Chemistry; metallurgy

PROCESS FOR PRODUCING ENHANCED MANGANESE-ZINC GEOTHERMAL FILTER CAKE COMPOSITIONS

#3 | 2025-05-22

US20250162894A1

Chemistry; metallurgy

PROCESS FOR RECOVERY OF LITHIUM FROM A GEOTHERMAL BRINE

#4 | 2025-05-22

US20250162893A1

Chemistry; metallurgy

PROCESS FOR RECOVERY OF LITHIUM FROM A GEOTHERMAL BRINE

#5 | 2020-06-18

US20200189925A1

Chemistry; metallurgy

Process for recovery of lithium from a geothermal brine

#6 | 2020-06-18

US20200189924A1

Chemistry; metallurgy

SYSTEM FOR RECOVERY OF LITHIUM FROM A GEOTHERMAL BRINE

#7 | 2019-08-15

US20190248667A1

Chemistry; metallurgy

System and process for recovery of lithium from a geothermal brine

#8 | 2016-01-28

US20160023927A1

Chemistry; metallurgy

Hydrogen sulfide abatement in geothermal facilities

#9 | 2015-03-19

US20150076064A1

Performing operations; transporting

PROCESS FOR DEPLETING CALCIUM AND/OR IRON FROM GEOTHERMAL BRINES

#10 | 2013-07-25

US20130186809A1

Performing operations; transporting

CLARIFIER AND LAUNDER SYSTEMS

#11 | 2013-03-21

US20130068697A1

Chemistry; metallurgy

Process for depleting calcium and/or iron from geothermal brines

#12 | 2011-03-03

US20110049062A1

Performing operations; transporting

Method of removing iron and calcium from a geothermal brine

#13 | 2010-08-17

US10763357

Process for producing electrolytic manganese dioxide

InventorID:

146977 ⎘