Patents by Inventor Stephen A. Kubica

Stephen A. Kubica 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).

  • Cigarette and soluble cigarette filter therefor
    Patent number: 5497793
    Abstract: A filter cigarette includes a tobacco smoke filter having a core of an expanded starch material which is biodegradable and readily soluble in water. The filter material is preferably formed of high amylose content cornstarch or potato starch extruded at a moisture content of between 10% and 21% at a temperature between 150.degree. to 250.degree. C.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: March 12, 1996
    Inventor: Stephen A. Kubica