Patents by Inventor Douglass N. Schmidt

Douglass N. Schmidt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6011016
    Abstract: The present invention relates to a stable, tasteless fat soluble vitamin emulsion composition which can be sprayed on foodstuffs at room temperature, particularly ready-to-eat breakfast cereal, for the purpose of vitamin fortification of said foodstuffs.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: January 4, 2000
    Assignee: BASF Corporation
    Inventors: Douglass N. Schmidt, Melissa Mack
  • Patent number: 5254551
    Abstract: A flour fortification formulation comprises riboflavin in an amount of 0.5 to 10 weight percent. The riboflavin is in the form of a riboflavin granulate which exhibits a flowability index of from 75 to 750, an average granule size of from 50 microns to 300 microns. Furthermore, the granules comprise riboflavin in an amount of from 75 weight percent to 99.5 weight percent.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: October 19, 1993
    Inventors: Paula S. Kirk, Douglass N. Schmidt
  • Patent number: 4710519
    Abstract: The subject invention relates to a process for preparing acetaminophen powders by spray drying the acetaminophen in the presence of various excipients. Preferably a lubricant is incorporated into the acetaminophen powder during the spray drying process or after the spray drying process by passing the spray dried acetaminophen powder through a fluidized bed dryer which contains a lubricant.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: December 1, 1987
    Assignee: BASF Corporation
    Inventors: Jeffrey L. Finnan, Rudolph E. Lisa, Douglass N. Schmidt
  • Patent number: 4605666
    Abstract: The subject invention relates to a process for preparing a powder containing a water-soluble vitamin which is directly compressible into a tablet prepared by spray drying (a) an aqueous slurry of a water-soluble vitamin and a binder; (b) preferably an adsorbent; and (c) a lubricant. Particularly useful water-soluble vitamins are ascorbic acid, sodium ascorbate, and calcium ascorbate. The unique feature of the process is that the lubricant is spray dried along with the other components.The invention also relates to powders prepared by this process. The powders are directly compressible into tablets and will not demix.
    Type: Grant
    Filed: October 23, 1984
    Date of Patent: August 12, 1986
    Assignee: BASF Corporation
    Inventors: Douglass N. Schmidt, Jeffrey L. Finnan, Rudolph E. Lisa
  • Patent number: 4603143
    Abstract: Vitamin-active powders which are more free-flowing and stable, than conventional fat-soluble vitamin powders are prepared utilizing special silicon-containing materials which are predominately in the form of substantially discrete agglomerates. The agglomerates are such that preferably 50 percent of the total have a minimum length, width, or both of 300 microns.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: July 29, 1986
    Assignee: BASF Corporation
    Inventor: Douglass N. Schmidt
  • Patent number: 4533674
    Abstract: The subject invention relates to a vitamin C powder prepared by (a) spray drying an aqueous slurry of ascorbic acid and binder in the presence of an absorbent in amounts such that the resulting powder will contain at least 90 percent by weight of ascorbic acid, no more than 9 percent by weight of binder, from 0.2 to 2 percent by weight of absorbent; and blending from 0.2 to 5 percent by weight of a lubricant into the powder prepared by step (a). Preferably microcrystalline cellulose and mixtures of microcrystalline cellulose and hydroxypropylmethycellulose are used as the binder.The resulting sugar and starch free vitamin C powder prepared by this process will be free flowing, have an ascorbic acid content of at least 90 percent by weight, be color stable under use conditions, will contain a lubricant, and is directly compressible into tablets which have acceptable hardness, friability, color stability, and disintegration times.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: August 6, 1985
    Assignee: BASF Wyandotte Corporation
    Inventors: Douglass N. Schmidt, Jeffrey L. Finnan, Rudolph E. Lisa
  • Patent number: 4532133
    Abstract: Vitamin A palmitate compositions stable against crystallization at low temperatures are prepared by blending therewith a monoterpene such as dl-limonene. Vitamin A active concentrates prepared utilizing low temperature stabilized vitamin A palmitate are prepared by blending therewith an acceptable feed or food grade emulsifier.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: July 30, 1985
    Assignee: BASF Wyandotte Corporation
    Inventor: Douglass N. Schmidt
  • Patent number: 4486435
    Abstract: Encapsulated vitamin powders coated with a hydrophobic silica have improved free-flowing properties making these powders more suitable for direct tableting preparation.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: December 4, 1984
    Assignee: BASF Wyandotte Corporation
    Inventors: Douglass N. Schmidt, Jeffrey L. Finnan, Rudolph E. Lisa
  • Patent number: 4395422
    Abstract: Spray dried vitamin E powders comprising 50 to 56 percent by weight vitamin E, 1 to 25 percent by weight hydrolyzed gelatin and 20 to 30 percent by weight caseinate. The resulting powders can be directly compressed into tablets of improved hardness and friability.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: July 26, 1983
    Assignee: BASF Wyandotte Corporation
    Inventors: Douglass N. Schmidt, Frank Fischetti, Jr.