Removal of dissolved selenium from aqueous solutions

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9963360
SERIAL NO

15026871

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Processes for treating aqueous solutions to remove dissolved selenium species, for example in the presence of an excess of sulphate anions, which include the use of strongly basic anion exchange resins, or co-precipitation and adsorption of the selenate (and selenite) with mixed ferrous and ferric iron, or combinations thereof. Co-precipitation and adsorption of selenate may take place in an electrolytic cell in the presence of ferrous and/or ferric iron.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BQE WATER INCSUITE 250 - 900 HOWE STREET VANCOUVER V6Z 2M4

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kratochvil, David Vancouver, CA 5 19
Littlejohn, Patrick Vancouver, CA 1 9
Mohammadi, Farzad Vancouver, CA 1 9
Sanguinetti, David Vancouver, CA 1 9

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 8, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 8, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00