Patents by Inventor JoAnn Domanski
JoAnn Domanski 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).
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Patent number: 10920081Abstract: A leuco dye pastel marking device for use with a substrate treated with an activator of the leuco dye, such that drawing upon the substrate will reveal a color, but drawing on a normal surface will have no visible effect. A solvent such as dimethyl adipate is used to store the leuco dye in a longer-lived, more stable, solid form, and varying hardnesses and consistencies may be achieved by the addition of 12 hydroxystearic acid and ethyl cellulose. The substrate may be treated selectively with the activator such that a texture, image, or hidden message is revealed by the application of the leuco dye pastel to the substrate. One or more substrates and one or more leuco dye pastel marking devices may be presented to a child as a coloring book with pastels that only visibly mark the coloring book and no other surface.Type: GrantFiled: February 7, 2020Date of Patent: February 16, 2021Assignee: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Publication number: 20200180333Abstract: A leuco dye pastel marking device for use with a substrate treated with an activator of the leuco dye, such that drawing upon the substrate will reveal a color, but drawing on a normal surface will have no visible effect. A solvent such as dimethyl adipate is used to store the leuco dye in a longer-lived, more stable, solid form, and varying hardnesses and consistencies may be achieved by the addition of 12 hydroxystearic acid and ethyl cellulose. The substrate may be treated selectively with the activator such that a texture, image, or hidden message is revealed by the application of the leuco dye pastel to the substrate. One or more substrates and one or more leuco dye pastel marking devices may be presented to a child as a coloring book with pastels that only visibly mark the coloring book and no other surface.Type: ApplicationFiled: February 7, 2020Publication date: June 11, 2020Applicant: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Patent number: 10597537Abstract: A leuco dye pastel marking device for use with a substrate treated with an activator of the leuco dye, such that drawing upon the substrate will reveal a color, but drawing on a normal surface will have no visible effect. A solvent such as dimethyl adipate is used to store the leuco dye in a longer-lived, more stable, solid form, and varying hardnesses and consistencies may be achieved by the addition of 12 hydroxystearic acid and ethyl cellulose. The substrate may be treated selectively with the activator such that a texture, image, or hidden message is revealed by the application of the leuco dye pastel to the substrate. One or more substrates and one or more leuco dye pastel marking devices may be presented to a child as a coloring book with pastels that only visibly mark the coloring book and no other surface.Type: GrantFiled: April 13, 2018Date of Patent: March 24, 2020Assignee: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Publication number: 20190315967Abstract: A leuco dye pastel marking device for use with a substrate treated with an activator of the leuco dye, such that drawing upon the substrate will reveal a color, but drawing on a normal surface will have no visible effect. A solvent such as dimethyl adipate is used to store the leuco dye in a longer-lived, more stable, solid form, and varying hardnesses and consistencies may be achieved by the addition of 12 hydroxystearic acid and ethyl cellulose. The substrate may be treated selectively with the activator such that a texture, image, or hidden message is revealed by the application of the leuco dye pastel to the substrate. One or more substrates and one or more leuco dye pastel marking devices may be presented to a child as a coloring book with pastels that only visibly mark the coloring book and no other surface.Type: ApplicationFiled: April 13, 2018Publication date: October 17, 2019Applicant: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Patent number: 8822374Abstract: A color-changing marking system, including a color-changing marking medium and a substrate. The color-changing marking medium has a nominal color and includes a color developer activator and/or color former leuco dye. The substrate includes a treated portion on which a color former leuco dye and/or color developer activator has been applied. Application of the color-changing marking medium to an untreated portion of the substrate causes the color-changing marking medium to create marks of the nominal color. Application of the color-changing marking medium to the treated portion of the substrate causes the color-changing marking medium to create marks of a changed color in response to a chemical or mechanical reaction between the leuco dye and the activator. The marking medium may a crayon, colored pencil, marker ink or paint.Type: GrantFiled: January 6, 2012Date of Patent: September 2, 2014Assignee: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Publication number: 20130178362Abstract: A color-changing marking system, including a color-changing marking medium and a substrate. The color-changing marking medium has a nominal color and includes a color developer activator and/or color former leuco dye. The substrate includes a treated portion on which a color former leuco dye and/or color developer activator has been applied. Application of the color-changing marking medium to an untreated portion of the substrate causes the color-changing marking medium to create marks of the nominal color. Application of the color-changing marking medium to the treated portion of the substrate causes the color-changing marking medium to create marks of a changed color in response to a chemical or mechanical reaction between the leuco dye and the activator. The marking medium may a crayon, colored pencil, marker ink or paint.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Applicant: NOCOPI TECHNOLOGIES, INC.Inventors: Terry W. Stovold, JoAnn Domanski
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Patent number: 8053494Abstract: An invisible ink, a method for preparing an invisible ink, and an invisible ink product are disclosed herein. An invisible ink comprising a first ink combined with a second ink is applied to a print medium. The first ink comprises a color developer activator without a color former leuco dye and the second ink comprises a color former leuco dye without a color developer activator. The first ink is prepared with a polyvinyl alcohol binder, dispersant/surfactant, and a wetting agent. The second ink is prepared with a polyvinyl alcohol binder, grind aid, dispersant/surfactant and defoamer. Heat generated by rubbing and/or scratching the invisible ink on the print medium activates the color former leuco dye and activator to change the color on the printing medium.Type: GrantFiled: January 10, 2008Date of Patent: November 8, 2011Assignee: Nocopi Technologies, Inc.Inventors: Terry W. Stovold, JoAnn Domanski
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Publication number: 20100059984Abstract: A method and system of document authentication comprise applying a neutralizer security ink to a paper document to be authenticated, the neutralizer security ink neutralizing a reactant in the paper document. A color changing security ink is applied to the paper document to be authenticated at least to an area where the neutralizer security ink was applied, the color changing security ink having a first security color and a second security color. A test solution is applied to the paper document to be authenticated at least on the area where the neutralizer security ink and color changing security ink have both been applied. The application of the test solution to the area where the neutralizer security ink and color changing security ink have both been applied causes the color changing security ink to change from the first security color to the second security color.Type: ApplicationFiled: September 8, 2008Publication date: March 11, 2010Applicant: NOCOPI TECHNOLOGIES, INC.Inventors: JoAnn Domanski, Richard J. Selah
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Publication number: 20080113862Abstract: An invisible ink, a method for preparing an invisible ink, and an invisible ink product are disclosed herein. An invisible ink comprising a first ink combined with a second ink is applied to a print medium. The first ink comprises a color developer activator without a color former leuco dye and the second ink comprises a color former leuco dye without a color developer activator. The first ink is prepared with a polyvinyl alcohol binder, dispersant/surfactant, and a wetting agent. The second ink is prepared with a polyvinyl alcohol binder, grind aid, dispersant/surfactant and defoamer. Heat generated by rubbing and/or scratching the invisible ink on the print medium activates the color former leuco dye and activator to change the color on the printing medium.Type: ApplicationFiled: January 10, 2008Publication date: May 15, 2008Applicant: Nocopi Technologies, Inc.Inventors: Terry Stovold, JoAnn Domanski
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Publication number: 20030056673Abstract: Method for producing unobtrusive ornamental visual effects for design configurations and point of reference patterns which enhance the aesthetics and functional criteria of paper and other printable substrates.Type: ApplicationFiled: September 21, 2001Publication date: March 27, 2003Inventors: John J. Klumpp, JoAnn Domanski