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Class Information
Number: 426/427
Name: Food or edible material: processes, compositions, and products > Processes > Extraction utilizing liquid as extracting medium > Removing caffein or tannin
Description: Processes for the treatment of a material to selectively remove a portion or substantially all of the caffeine or tannin.


Sub-classes under this class:

Class Number Class Name Patents
426/428 Utilizing organic liquid 54


Patents under this class:
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Patent Number Title Of Patent Date Issued
7312199 Process for the production of (-)-epigallocatechin gallate Dec. 25, 2007
7279184 Methods and compositions comprising Ilex Oct. 9, 2007
7022367 Oolong tea beverage and process of producing the same Apr. 4, 2006
6544581 Process for extraction, purification and enrichment of polyphenolic substances from whole grapes, grape seeds and grape pomace Apr. 8, 2003
6510949 Filter material having adjustable wettability and method for its manufacture Jan. 28, 2003
6506304 Method for the regeneration of supercritical extractant Jan. 14, 2003
6506430 Oak aged alcoholic beverage extract and accelerated whisky maturation method Jan. 14, 2003
6344226 Process for producing an extract of an accelerated oak aged alcoholic concentrate Feb. 5, 2002
6210679 Method for isolation of caffeine-free catechins from green tea Apr. 3, 2001
6132788 Oak aged alcoholic beverage extract Oct. 17, 2000
5989557 Process for extracting polyphenol fractions of tea and compositions produced therewith Nov. 23, 1999
5827560 Process for producing cold water soluble tea extract Oct. 27, 1998
5728634 Caffeine adsorbent liquid filter Mar. 17, 1998
5702747 Process for decaffeinating aqueous caffeine-containing extracts Dec. 30, 1997
5658571 Process for extraction and use of fenugreek (Trigonella foenumgraecum) Aug. 19, 1997
5603830 Caffeine adsorbent liquid filter with integrated adsorbent Feb. 18, 1997
5490884 Method and system for extracting a solute from a fluid using dense gas and a porous membrane Feb. 13, 1996
5338575 Process for the quasi-continuous decaffeination of raw coffee Aug. 16, 1994
5288511 Supercritical carbon dioxide decaffeination of acidified coffee Feb. 22, 1994
5266342 Method for decaffeinating coffee materials including a reverse osmosis permeate recycle Nov. 30, 1993
5208056 Process for decaffeinating raw coffee May. 4, 1993
5178899 Method for processing taste-modifier Jan. 12, 1993
5153015 Decaffeinating coffee and tea Oct. 6, 1992
5147674 Method for continuously decaffeinating raw coffee Sep. 15, 1992
5139799 Ultra-sonic removal of xanthines from cocoa beans Aug. 18, 1992
5135766 Process for the decaffeination of raw coffee Aug. 4, 1992
5114728 Process for decaffeinating green coffee beans May. 19, 1992
5089280 Process for decaffinating green coffee beans Feb. 18, 1992
5087468 Process for aromatization of treated tea Feb. 11, 1992
5018540 Process for removal of basic materials May. 28, 1991
5011594 Process for the continuous extraction of mixtures of organic substances with supercritical solvents Apr. 30, 1991
4976979 Process for the decaffeination of tea Dec. 11, 1990
4956176 Solids-fluid contacting apparatus with screen at fluid outlet Sep. 11, 1990
4938977 Process for the production of decaffeinated tea Jul. 3, 1990
4929462 Method and apparatus for continuous contact of supercritical fluid with particulate solids May. 29, 1990
4911941 Method for decaffeinating coffee with a supercritical fluid Mar. 27, 1990
4885181 Process for decaffeinating green coffee Dec. 5, 1989
4877631 Process for recovering caffeine absorbed in activated carbon, and a process for decaffeinating coffee Oct. 31, 1989
4861607 Removal of xanthine stimulants from cocoa Aug. 29, 1989
4832951 Method of infusion extraction May. 23, 1989
4820537 Method for decaffeinating coffee with a supercritical fluid Apr. 11, 1989
4818552 Process for recovering caffeine adsorbed to activated carbon Apr. 4, 1989
4767634 Coffee decaffeination with caffeic acid Aug. 30, 1988
4755391 Removal of methylxanthines from cacao materials Jul. 5, 1988
4728525 Process for the decaffeination of green coffee Mar. 1, 1988
4714617 Procedure for segregation of mixture of substances containing organic components Dec. 22, 1987
4548827 Separate recovery of caffeine and coffee solids adsorbed on activated carbon Oct. 22, 1985
4547378 Roasted coffee extract decaffeination method Oct. 15, 1985
4545998 Multi-phase liquid solvent decaffeination Oct. 8, 1985
4508743 Caffeine adsorption Apr. 2, 1985

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