Methods for reducing soluble metal ions in diatomaceous earth filter aids

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9005687
APP PUB NO 20110223301A1
SERIAL NO

12724173

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for reducing the amount of beverage soluble metal ions in a diatomaceous earth filter aid is disclosed. The beverage soluble metal ions can be copper and/or iron. In the method, the diatomaceous earth filter aid is contacted with a hop compound selected from iso-alpha-acids, dihydroiso-alpha-acids, tetrahydroiso-alpha-acids, hexahydroiso-alpha-acids, alpha-acids, and beta-acids. The diatomaceous earth filter aid can also be contacted with and an acid other than the hop compound such as phosphoric acid. The iso-alpha-acids, dihydroiso-alpha-acids, tetrahydroiso-alpha-acids, hexahydroiso-alpha-acids, alpha-acids, or beta-acids bind the copper and iron metal ions and/or change the form of copper and iron in diatomaceous earth so the copper and iron are rendered substantially insoluble in a beverage such as beer. A method for filtering a beverage using the treated diatomaceous earth filter aid is also disclosed. A method for increasing the flavor stability of a malt beverage filtered with a diatomaceous earth filter aid is also disclosed.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MILLERCOORS LLC311 10TH STREET P O BOX 4030 GOLDEN CO 80401

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Casey, Gregory P Littleton, US 1 0
Dannenberg, Rhonda M Port Washington, US 1 0
Eplett,, III John T Wauwatosa, US 1 0
Laumann, Jacqueline A Wales, US 1 0
Ryder, David S Mequon, US 30 107
Saunders, Fran L Whitefish Bay, US 1 0
Ting, Patrick L Brookfield, US 22 293

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 Oct 14, 2022
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 14, 2026
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