Patents by Inventor Richard C. Baron

Richard C. Baron 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).

  • Polymeric compositions useful in oxygen permeable contact lenses
    Patent number: 5346978
    Abstract: Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: September 13, 1994
    Assignee: Polymer Technology Corporation
    Inventors: Richard C. Baron, Scott D. Rothenberger
  • Polymeric compositions useful in oxygen permeable contact lenses
    Patent number: 5177168
    Abstract: Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: January 5, 1993
    Assignee: Polymer Technology Corp.
    Inventors: Richard C. Baron, Scott D. Rothenberger
  • Polymeric compositions useful in oxygen permeable contact lenses
    Patent number: 5032658
    Abstract: Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: July 16, 1991
    Assignee: Polymer Technology Corporation
    Inventors: Richard C. Baron, Scott D. Rothenberger
  • Synthetic polymers by polyisocyanate polyaddition process
    Patent number: 4328322
    Abstract: Synthetic polymers and a process for their preparation by a polyisocyanate polyaddition reaction are described. Synthetic polymers are provided by the reaction of a polyisocyanate with substantially an equivalent amount of an oligomeric para-, meta- or di-meta-aminobenzoic acid ester or amide having the formula ##STR1## wherein n is an integer of from 2 to 4; each x is one or two; each benzoyl nucleus is para-, meta- or di-meta- amino-substituted; each Z is ##STR2## and G is an n-valent radical which may be obtained by the removal of hydroxyl or amino groups from an n-valent oligomeric polyol or polyamine having a molecular weight of from about 400 to about 6,000. Useful synthetic polymeric products can be simply and effectively provided by reaction of the polyisocyanate and the oligomeric aminobenzoic acid ester or amide reactants without the requirement of additional curative or chain-extending agents.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: May 4, 1982
    Assignee: Polaroid Corporation
    Inventor: Richard C. Baron
  • Polyurethane elastomers prepared from diamine curing agents
    Patent number: 3932360
    Abstract: Diamine cured polyurethane products are prepared by combining an isocyanate terminated urethane prepolymer with a compound of the formula: ##SPC1##Wherein X is a 2-12 carbon alkylene or cycloalkylene group.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: January 13, 1976
    Assignee: Polaroid Corporation
    Inventors: Leon D. Cerankowski, Neil Mattucci, Richard C. Baron