Patents by Inventor Dwight L. Allen

Dwight L. Allen 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).

  • Elastomeric composition containing therapeutic agents and articles manufactured therefrom
    Patent number: 5019601
    Abstract: A novel elastomeric composition of matter comprises a rubber latex and a masterbatch comprising a therapeutic agent in a therapeutically effective amount, a carrier component, titanium dioxide, and clay. A process for the preparation of a novel elastomeric composition of matter containing a therapeutic agent includes the steps of preparaing a masterbatch containing a therapeutic agent, adding the masterbatch to a rubber latex and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multilayered.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: May 28, 1991
    Assignee: Cuno, Incorporated
    Inventor: Dwight L. Allen
  • Elastomeric composition containing therapeutic agents and articles manufactured therefrom
    Patent number: 5019378
    Abstract: A novel elastomeric composition of matter comprises a rubber latex and a masterbatch comprising a therapeutic agent in a therapeutically effective amount, a carrier component, titanium dioxide, and clay. A process for the preparation of a novel elastomeric composition of matter containing a therapeutic agent includes the steps of preparing a masterbatch containing a therapeutic agent, adding the masterbatch to a rubber latex and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multilayered.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: May 28, 1991
    Assignee: Cuno, Incorporated
    Inventor: Dwight L. Allen
  • Elastomeric composition containing therapeutic agents and articles manufactured therefrom
    Patent number: 4867968
    Abstract: A novel elastomeric composition of matter comprises a rubber latex and a masterbatch comprising a therapeutic agent in a therapeutically effective amount, a carrier component, titanium dioxide, and clay. A process for the preparation of a novel elastomeric composition of matter containing a therapeutic agent includes the steps of preparing a masterbatch containing a therapeutic agent, adding the masterbatch to a rubber latex and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multilayered.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: September 19, 1989
    Assignee: Florida-Kansas Health Care, Inc.
    Inventor: Dwight L. Allen
  • Silicone-containing elastomer and process for the preparation thereof
    Patent number: 4303595
    Abstract: A novel elastomeric composition of matter comprises a suitable elastomer, a masterbatch consisting of a silicone compound in an amount of from about 10 to about 50 parts by weight based upon the weight of the elastomer, titanium dioxide, and clay. A process for the preparation of a silicone-containing elastomeric composition of matter is provided and includes the steps of masterbatching a silicone compound, clay and titanium dioxide to form a dispersion, adding the dispersion to the elastomer and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multi-layered.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: December 1, 1981
    Assignee: Akron Catheter, Inc.
    Inventor: Dwight L. Allen
  • Silicone-containing elastomer and process for the preparation thereof
    Patent number: 4303596
    Abstract: A novel elastomeric composition of matter comprises a suitable elastomer, a masterbatch consisting of a silicone compound in an amount of from about 10 to about 50 parts by weight based upon the weight of the elastomer, titanium dioxide, and clay. A process for the preparation of a silicone-containing elastomeric composition of matter is provided and includes the steps of masterbatching a silicone compound, clay and titanium dioxide to form a dispersion, adding the dispersion to the elastomer and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multi-layered.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: December 1, 1981
    Assignee: Akron Catheter, Inc.
    Inventor: Dwight L. Allen
  • Silicone-containing elastomer and process for the preparation thereof
    Patent number: 4242287
    Abstract: A novel elastomeric composition of matter comprises a suitable elastomer, a masterbatch consisting of a silicone compound in an amount of from about 10 to about 50 parts by weight based upon the weight of the elastomer, titanium dioxide, and clay. A process for the preparation of a silicone-containing elastomeric composition of matter is provided and includes the steps of masterbatching a silicone compound, clay and titanium dioxide to form a dispersion, adding the dispersion to the elastomer and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multi-layered.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: December 30, 1980
    Assignee: Akron Catheter, Inc.
    Inventor: Dwight L. Allen