Patents by Inventor Robert F. Farmer, III

Robert F. Farmer, III 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: 4391927
    Abstract: An erasable ink containing a thermoplastic block copolymer, pigment particles, and a solvent. In a preferred embodiment, an erasable ink requiring little or no pressurization is provided by employing a mixture of radial and linear block copolymers and a mixed solvent system falling within a specific range of solubility parameter. Polybutene and poly-alpha-methylstyrene are preferred additives to decrease smearing tendency.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: July 5, 1983
    Assignee: The Gillette Company
    Inventor: Robert F. Farmer, III
  • Patent number: 4304691
    Abstract: This invention deals with novel sulfated condensation products of ethylene oxide with bases formed by condensing propylene oxide with propylene glycol, and having a molecular weight of about 11.phi..phi. to 48.phi..phi.. The sulfated condensation products are useful as components in hair shampoo systems to provide an after-shampoo conditioning effect.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: December 8, 1981
    Assignee: The Gillette Company
    Inventors: Robert F. Farmer, III, Jacob J. Guth
  • Patent number: 4288427
    Abstract: This invention deals with novel sulfated copolymers of hydroxyethyl methacrylate and alkyl esters of acrylic acid and sulfated copolymers of hydroxyethyl acrylate and alkyl esters of methacrylic acid. The copolymers are useful as components in aqueous hair shampoo systems to provide an after-shampoo conditioning effect.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: September 8, 1981
    Assignee: The Gillette Company
    Inventors: Robert F. Farmer, III, Phillip E. Sokol, deceased
  • Patent number: 4186214
    Abstract: A synthetic polymer-based chewing gum having a prolonged flavor release due to the inclusion of molasses.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: January 29, 1980
    Assignee: The Gillette Company
    Inventors: Vernon J. Crouse, III, Robert F. Farmer, III
  • Patent number: 4171983
    Abstract: Ink compositions for use in capillary type writing instruments containing quaternary ammonium of the formula:RCH.sub.2 N(CH.sub.3).sub.3.sup.+ X.sup.-whereinR is --CH.sub.2 OH or --COOH, andX is --OH, --Cl, --Br, or --I.These ink compositions, when used in capillary type writing instruments, allow rejuvenation of writing points which have dried out from exposure to the atmosphere.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: October 23, 1979
    Assignee: The Gillette Company
    Inventors: Robert F. Farmer, III, Phillip E. Sokol
  • Patent number: 4049608
    Abstract: Novel copolymerizable esters of cinnamic acid or an .omega.-alkenoic acid of from 4 to 18 carbon atoms, such as undecylenic acid, with certain hydroxyalkane sulfonic acids, such as isethionic acid, are described together with processes of making them and copolymers thereof. These novel copolymerizable esters may be made by reaction of the .omega.-alkenoic or cinnamic acid with the hydroxyalkane sulfonic acid or a sultone, such as propane sultone. These novel ester are useful as copolymerizable surfactants in the emulsion polymerization of ethylenically unsaturated monomers; particularly for the production of self-stabilizing latices of polymeric materials possessing excellent mechanical stability and from which can be deposited films having improved adhesion, pigment wetting and bonding properties and greatly improved resistance to water.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: September 20, 1977
    Assignee: Alcolac Inc.
    Inventors: Robert Steckler, Fred Robinson, Robert F. Farmer, III