Patents by Inventor Robert W. Sweger

Robert W. Sweger 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).

  • Aerosol composition containing silicone-based fluid and improved spray system
    Patent number: 6358893
    Abstract: An aerosol composition includes an admixture of: (a) at least one silicone-based fluid and (b) at least one fluorine-containing propellant that is soluble in the silicone-based fluid. In a preferred embodiment, the propellant includes a hydrofluorocarbon, in particular 1,1,1,2-tetrafluoroethane. An aerosol spray system includes: (a) a container; (b) the aerosol composition described above disposed within the container; (c) a metering device; and (d) a spray head. An aerosol lubricating composition includes the composition described above, wherein the silicone-based fluid is a lubricant. A method of lubricating, includes: (a) directing a container containing the lubricating composition described above at an article in need of lubrication; and (b) spraying the lubricating composition at the article.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: March 19, 2002
    Assignee: Stoner, Inc.
    Inventors: Harry T. Zechman, III, Robert W. Sweger
  • Paper products using starches modified with amino-multicarboxylates
    Patent number: 5500087
    Abstract: Amino-multicarboxylate starch ether derivatives are provided having the following structure: ##STR1## wherein St-O represents a starch molecule,R is H or CH.sub.3 ;R' is H, CH.sub.3 or COOH;M is a cation;n is 2 or 3; andR" is H or alkyl of 1 to 18 carbon atoms.These starch derivatives are particularly useful as retention and strength aids in papermaking.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 19, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Karen A. Bernard, John Tsai, Robert L. Billmers, Robert W. Sweger
  • Cosmetic compositions containing amino-multicarboxylate modified starch
    Patent number: 5482704
    Abstract: Cosmetic skin and hair care compositions are provided containing amino-multicarboxylate starch derivatives as thickeners or emulsion stabilizers and which have the following formulas: ##STR1## wherein St-O represents a starch molecule;R is H or CH.sub.3 ;R' is H, CH.sub.3 or COOH;M is a cation;n is 2 or 3; andR" is H or alkyl of 1 to 18 carbon atoms. These compositions have good rheological properties and have excellent aesthetic properties of feel and appearance.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: January 9, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Robert W. Sweger, John J. Tsai, Joseph Pasapane, Karen A. Bernard
  • Starches modified with amino-multicarboxylates
    Patent number: 5455340
    Abstract: Amino-multicarboxylate starch ether derivatives are provided having the following structure: ##STR1## wherein St-O represents a starch molecule,R is H or CH.sub.3 ;R' is H, CH.sub.3 or COOH;M is a cation;n is 2 or 3; andR" is H or alkyl of 1 to 18 carbon atoms.These starch derivatives are particularly useful as retention and strength aids in papermaking.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: October 3, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Karen A. Bernard, John Tsai, Robert L. Billmers, Robert W. Sweger