John C Proudley

US Patent:

48370380, Jun 6, 1989

Filed:

Feb 2, 1988

Appl. No.:

7/151507

Inventors:

John C. Proudley - Delaware OH
William S. Symbolik - Marysville OH

Assignee:

Nestec SA - Vevey

International Classification:

A23F 520

US Classification:

426428

Abstract:

Caffeine-containing vegetable materials are decaffeinated by contacting the vegetable materials with a substantially laminar flow of a fatty material having a superficial velocity of at least about 10. times. 10. sup. -3 m/sec. Recycling of the fatty material may be also carried out in one or more extraction vessels.

US Patent:

51398028, Aug 18, 1992

Filed:

Mar 20, 1992

Appl. No.:

7/855143

Inventors:

Richard T. Liu - Worthington OH
John C. Proudley - Delaware OH

Assignee:

Nestec S.A. - Vevey

International Classification:

A23F 308

US Classification:

426263

Abstract:

Green and Oolong tea leaves are oxidized to alter the organoleptic and aesthetic characteristics of aqueous extracts obtained therefrom and to provide extracts which have minimal turbidity, particularly when cooled. The oxidation reaction is performed on leaves which contain moisture only in an amount such that the oxidation reaction occurs at localized sites on and within the tea leaf structure.

US Patent:

51301547, Jul 14, 1992

Filed:

Feb 19, 1992

Appl. No.:

7/838523

Inventors:

Richard T. Liu - Worthington OH
John C. Proudley - Delaware OH

Assignee:

Nestec S.A. - Vevey

International Classification:

A23F 308

US Classification:

426312

Abstract:

Black tea leaves are oxidized to provide treated leaves from which aqueous tea extracts which have minimal turbidity, particularly when cooled, may be obtained. The oxidation reaction is performed on black tea leaves which contain moisture only in an amount such that the oxidation reaction occurs at localized sites on and within the tea leaf structure.

US Patent:

52503178, Oct 5, 1993

Filed:

Jun 30, 1992

Appl. No.:

7/906707

Inventors:

Richard T. Liu - Worthington OH
John C. Proudley - Delaware OH

Assignee:

Nestec S.A. - Vevey

International Classification:

A23F 308

US Classification:

426597

Abstract:

Black tea leaves are oxidized to provide treated leaves from which aqueous tea extracts which have minimal turbidity, particularly when cooled, may be obtained. The oxidation reaction is performed on black tea leaves which contain moisture only in an amount such that the oxidation reaction occurs at localized sites on and within the tea leaf structure.