Patents Examined by Paul Leiberman
  • Patent number: 5672575
    Abstract: A contact lens cleaning solution containing an enzyme having proteolytic activity and a surfactant, and optionally also a chelating agent and urea, and a method of cleaning contact lenses utilizing this solution are described. The solution and method effectively remove deposits of proteinaceous material, mucins, lipids and calcium located either on or beneath the surface of the lens.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: September 30, 1997
    Assignee: Alcon Laboratories, Inc.
    Inventor: Rolf Schafer
  • Patent number: 5665687
    Abstract: A skin-cleansing composition in the form of an oil-in-water emulsion. This emulsion comprises an emulsifying agent of hydrophilic/lipophilic balance below about 12 and lipid grains containing a cleansing agent. The invention composition constitutes a "3 in 1" product, which simultaneously allows cleansing, scrubbing and care of the skin.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: September 9, 1997
    Assignee: L'Oreal
    Inventors: Carine Khayat, Didier Candau
  • Patent number: 4978462
    Abstract: Aqueous compositions comprising water having dispersed therein (A) a cationic compound which is substantive to water rinse on textile fabrics and (B) a mixture of (i) a siloxane composed of at least 90% of RSiQ.sub.3/2 units, in which R is alkyl having from 1 to 8 carbon atoms, and optionally units selected from ##EQU1## units, in which R' is phenyl or a 1 to 4 carbon alkyl group, and C.sub.6 H.sub.5 SiO.sub.3/2 units and (ii) a polydiorganosiloxane.The compositions are useful as fabric conditioners in domestic and commercial laundry operations.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: December 18, 1990
    Assignee: Dow Corning Limited
    Inventor: Julie H. Sheppard
  • Patent number: 4813976
    Abstract: Disclosed is a process for making emery boards comprising the steps of providing a substrate selected from the group consisting of wood, cardboard and plastic sheets having first and second surfaces; adhesively applying abrasive paper on at least one surface of said substrate; forming on said abrasive surface a uniform film comprising a lubricant and a humectant selected from the groups consisting of lubricant and humectant polyethylene glycols by applying a film of a solution comprising said lubricant and humectant on said surface and drying said surface, said film being sufficiently thin so as not to impart a greasy feeling to the touch on said emery board nor interfere with the abrasive action of said board; and cutting out emery boards from said surface in the desired shape.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: March 21, 1989
    Assignee: The Cook Bates Company
    Inventor: Myron Barchas