Patents by Inventor Ronald W. Citkowski

Ronald W. Citkowski 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).

  • Tape and wrapping materials with edge-finding feature
    Patent number: 7252880
    Abstract: A flexible material such as a transparent tape includes a material which enhances the visibility of a newly formed edge. The material can include a fluorescent dye disposed in the tape, or can be a material which reacts with oxygen, moisture or some other component of the ambient atmosphere to render the edge more visibly evident.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: August 7, 2007
    Inventors: John G. Posa, Ronald W. Citkowski
  • Tape and wrapping materials with edge-finding feature
    Publication number: 20040234732
    Abstract: A flexible material such as a transparent tape includes a material which enhances the visibility of a newly formed edge. The material can include a fluorescent dye disposed in the tape, or can be a material which reacts with oxygen, moisture or some other component of the ambient atmosphere to render the edge more visibly evident.
    Type: Application
    Filed: June 24, 2004
    Publication date: November 25, 2004
    Inventors: John G. Posa, Ronald W. Citkowski
  • Tape and wrapping materials with edge-finding feature
    Patent number: 6767628
    Abstract: A flexible material such as a transparent tape includes a material which enhances the visibility of a newly formed edge. The material can include a fluorescent dye disposed in the tape, or can be a material which reacts with oxygen, moisture or some other component of the ambient atmosphere to render the edge more visibly evident.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 27, 2004
    Inventors: John G. Posa, Ronald W. Citkowski
  • Tellurium imaging composition
    Patent number: 4340662
    Abstract: This application relates to an imaging composition employing a tellurium compound sensitive to activating radiation. Such imaging compositions have been disclosed in a number of earlier patents, such as U.S. Pat. Nos. 4,142,896, 4,066,460 and 4,106,939. This application discloses improvements in masked reducing agents for such compositions.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: July 20, 1982
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Stanford R. Ovshinsky, Leon F. Hines, Ronald W. Citkowski, Terry T. Yu
  • Imaging and recording of information utilizing tellurium tetrahalide
    Patent number: 4066460
    Abstract: Selected areas of a layer comprising a tellurium tetrahalide imaging material, exemplified by tellurium tetrachloride, are subjected to the imaging effect of imaging energy, and of developing energy causing a chemical change in the tellurium tetrahalide imaging material in the imaged areas accompanied by a change in the detectable characteristic of the imaged areas. The aforesaid imaging material is extended in a matrix of a film-forming material together with a sensitizer. The application of the energy is advantageously effected in two steps, an imaging step employing imaging energy and producing a latent image, followed by a development step employing developing energy and producing the detectable recorded information or image.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: January 3, 1978
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Yew C. Chang, Stanford R. Ovshinsky, Ronald W. Citkowski