Patents by Inventor David Kenneth MacFarlane
David Kenneth MacFarlane 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: 6437863Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: April 5, 2000Date of Patent: August 20, 2002Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6330341Abstract: Methods and apparatus for determining accurate hair color classifications and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a color measuring instrument to arrive at Hunter L, a and b for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.Type: GrantFiled: September 29, 1997Date of Patent: December 11, 2001Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6314372Abstract: Methods and apparatus for determining accurate hair color classifications and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a color measuring instrument to arrive at Hunter L, a and b values for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.Type: GrantFiled: June 7, 1996Date of Patent: November 6, 2001Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6308088Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: October 26, 1999Date of Patent: October 23, 2001Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson MacFarlane, David Kenneth MacFarlane, Fred W. Billmeyer, Jr.
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Patent number: 6157445Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: September 29, 1997Date of Patent: December 5, 2000Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6129664Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: September 29, 1997Date of Patent: October 10, 2000Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6128516Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: September 29, 1997Date of Patent: October 3, 2000Assignee: Chromatics Color Sciences International Inc.Inventors: Darby Simpson Macfarlane, David Kenneth Macfarlane, Fred W. Billmeyer, Jr.
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Patent number: 6067504Abstract: Methods and apparatus for determining accurate hair color classificatinos and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a color measuring instrument to arrive at Hunter L, a and b values for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.Type: GrantFiled: June 8, 1995Date of Patent: May 23, 2000Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson MacFarlane, David Kenneth MacFarlane, Fred W. Billmeyer, Jr.
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Patent number: 5671735Abstract: A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as hyperbilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject.Type: GrantFiled: May 9, 1994Date of Patent: September 30, 1997Assignee: Chromatics Color Sciences International, Inc.Inventors: Darby Simpson MacFarlane, David Kenneth MacFarlane, Fred W. Billmeyer, Jr.