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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
MacDonald; John Gavin
Address:
Decatur, GA
No. of patents:
76
Patents:


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Patent Number Title Of Patent Date Issued
7592020 Personal care products with visual indicator of vaginitis September 22, 2009
There is provided a personal care product having a body side liner, a baffle and an indicator strip with two ends. The indicator has an amine sensitive dye near at least one end. The indicator extends from the target area just below the liner to just above the baffle such that the dy
7582485 Method and device for detecting ammonia odors and helicobacter pylori urease infection September 1, 2009
The invention provides a breath testing device which visually indicates the presence of ammonia in a patient's breath, in particular ammonia from helicobacter pylori urease infection. The breath testing device comprises a visual indicating agent which changes color in response to ammonia
7578997 Metal ion modified high surface area materials for odor removal and control August 25, 2009
This invention relates to high surface area materials, such as nanoparticles, that are coated with metal ions. These modified nanoparticles have active sites that bind various gases and/or odorous compounds, thereby removing these compounds from a medium such as air or water. Metal i
7568251 Process for dyeing a textile web August 4, 2009
In a process for dyeing a textile web having a first face and a second face opposite the first face, dye is applied to the textile web and the dyed web is then immersed in a flowing treatment liquid with the textile web in a generally open configuration. A contact surface of an ultrasoni
7488520 High surface area material blends for odor reduction, articles utilizing such blends and methods February 10, 2009
A package comprising a paper product, a packaging material that encloses the paper product and defines a headspace therebetween, and metal modified nanoparticles having an effective particle diameter of less than about 500 nanometers is provided. The metal modified nanoparticles are
7438875 Method for reducing odor using metal-modified silica particles October 21, 2008
A method for reducing odor is provided. In one embodiment, the method comprises modifying the surface of silica particles with a transition metal so that the silica particles are bonded to the transition metal through a covalent or coordinate bond. The method further comprises contac
7413550 Visual indicating device for bad breath August 19, 2008
The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4'-bis(dimethylamino)-benzhydrol (Michle
7399608 Microbial detection and quantification July 15, 2008
A method for semi-quantitatively or quantitatively detecting the presence of a microbe in a sample is provided. The method utilizes a test dye that undergoes a detectable color change in the presence of one or more microbes. For example, in one embodiment, the test dye is a solvatoch
7371456 Nanoparticle based inks and methods of making the same May 13, 2008
The present invention provides nanoparticle based recording mediums, inks and ink compositions, methods of making nanoparticle based recording mediums and inks, nanoparticles and methods for making nanoparticles, methods for stabilizing colorants against electromagnetic radiation (in
7300770 Detection of microbe contamination on elastomeric articles November 27, 2007
An elastomeric article that contains a chromogen that undergoes a detectable change in color in the presence of one or more microbes is provided. For example, in one embodiment, the chromogen is a solvatochromic dye (e.g., Reichardt's dye) that undergoes a color change in the presenc
7282349 Solvatochromatic bacterial detection October 16, 2007
Solvatochromic dyes are used herein to indicate the presence of bacteria by incorporating them into various substrates such as films, woven and nonwoven fabrics, paper towels, coform and airlaid materials and bonded carded webs. These dyes change color in response to a change in polarity
7280441 Visual indicator chronograph and the use of the same October 9, 2007
A timer indicator or chronograph is described. The chronograph functions according to chromatographic principles to develop a perceptible visual image or pattern on an indicator panel or display area, which serves as a means to monitor the relative amount of time that elapses. The ch
7141518 Durable charged particle coatings and materials November 28, 2006
This invention concerns coatings having high surface area materials and at least one metal ion adsorbed onto the high surface area material as well as substrates having the coating and methods of applying the coating. The substrates may be films, woven fabrics or may be nonwoven fabrics.
7053029 Use indicating soap May 30, 2006
There is provided a soap that contains an indicator that produces an observable change after a period of time to show that sufficient cleaning has been done or to indicate the thoroughness of the cleaning. The soap is preferably made from two components that produce a color and/or vi
7030176 Recording medium with nanoparticles and methods of making the same April 18, 2006
The present invention provides recording media comprising nanoparticles, methods of stabilizing recording media against electromagnetic radiation (including ultraviolet radiation and radiation in the visible wavelength range), methods for enhancing the substrate independent durability
6939492 Method for making fibrous web materials September 6, 2005
Disclosed herein is a method for making fibrous web materials which may be used in or as absorbent core materials for absorbent products. The method involves providing loose fibers, entraining the fibers in a moving airstream, treating the fibers with an energy-activatable pre-polymer
6780896 Stabilized photoinitiators and applications thereof August 24, 2004
Zinc-complex photoiniators and applications therefore are disclosed. The zinc-complex photoinitiators of the present invention include various pendent groups which serve to protect the compound from hydrolysis. In this manner, the stability of the photoinitiator is increased. The pho
6503559 Neonanoplasts and microemulsion technology for inks and ink jet printing January 7, 2003
The present invention relates to colorant compositions containing neonanoplasts. The colorant compositions exhibit improved color brightness and brilliance due to the incorporation of one or more colorants in the neonanoplasts. The colorant compositions may be printed onto virtually any
6368396 Colorants, colorant stabilizers, ink compositions, and improved methods of making the same April 9, 2002
The present invention relates to a family of new porphine compounds for use as colorants and/or colorant stabilizers. The new porphine compounds may be used alone as a magenta dye or may be used in combination with one or more colorants to provide light stability to colorants. The presen
6342305 Colorants and colorant modifiers January 29, 2002
The present invention relates to a substrate having therein or thereon a composition containing, at least one molecular includant. In one embodiment, the molecular includant comprises a cyclodextrin. The present invention also relates to the substrate further comprising at least one
6277897 Photoinitiators and applications therefor August 21, 2001
The present invention is directed to new, energy-efficient photoinitiators in the form of .alpha.-amino enol ether compounds. The present invention is also directed to a method of generating reactive species, which includes exposing one or more photoinitiators to radiation to form one or
6265458 Photoinitiators and applications therefor July 24, 2001
The present invention is directed to new, energy-efficient, photoinitiators having the following general formula: ##STR1##wherein of X.sub.1 is a conjugated system such as one or more aryl groups or substituted aryl groups; Z.sub.1 is --O, --S, an alkyl group having from one to six c
6242057 Photoreactor composition and applications therefor June 5, 2001
A method of generating reactive species which includes exposing a wavelength specific photoreactor composition to radiation, in which the wavelength specific photoreactor composition comprises one or more wavelength-specific sensitizers associated with one or more reactive species-ge
6235095 Ink for inkjet printers May 22, 2001
An improved ink suitable for ink jet printing comprising, a mixture of a colorant, an arylketoalkene stabilizing compound or a photoreactor, and a liquid vehicle, wherein the colorant is light-stable. When the photoreactor is combined with a wavelength-selective sensitizer to form a
6211383 Nohr-McDonald elimination reaction April 3, 2001
A reaction for eliminating a functional group alpha to a carbonyl group. The reaction can be used to dehydrate a compound having an alcohol group alpha to a carbonyl group by reacting the compound in a non-aqueous non-polar solvent in the presence of an effective amount of a transition
6210516 Process of enhanced chemical bonding by electron seam radiation April 3, 2001
Permanent surface modification of polypropylene nonwoven fabrics is achieved through electron beam radiation induced chemical bonding. The electron beam energy levels suitable for such chemical bonding are between about 5 KeV to about 110 KeV at the surface of the fabric facing the e
6168655 Colorant stabilizers January 2, 2001
The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so t
6168654 Colorant stabilizers January 2, 2001
The present invention is directed to compositions containing a colorant and at least one porphine. The present invention includes an ink set of one or more inks which have substantially identical light fastness properties. One or more of the inks of the ink set includes a colorant and at
6127073 Method for concealing information and document for securely communicating concealed information October 3, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6120949 Photoerasable paint and method for using photoerasable paint September 19, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6099628 Colorant stabilizers August 8, 2000
The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so t
6090236 Photocuring, articles made by photocuring, and compositions for use in photocuring July 18, 2000
A method of generating reactive species which includes exposing a polymolecular photoreactor to radiation, in which the polymolecular photoreactor comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. The sensitizer absorbs energy an
6071979 Photoreactor composition method of generating a reactive species and applications therefor June 6, 2000
A method of generating reactive species which includes exposing a wavelength specific photoreactor to radiation, in which the wavelength specific photoreactor comprises a wavelength-specific sensitizer associated with one or more reactive species-generating photoinitiators. Also desc
6066439 Instrument for photoerasable marking May 23, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6063551 Mutable dye composition and method of developing a color May 16, 2000
One embodiment of the present invention is a method and composition comprising a novel pre-dye molecule that is colorless and stable to ordinary light. The pre-dye molecule is capable of forming a color when exposed to certain wavelengths of electromagnetic radiation. A second embodi
6060223 Plastic article for colored printing and method for printing on a colored plastic article May 9, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6060200 Photo-erasable data processing forms and methods May 9, 2000
A data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. The form is composed of a sheet of carrier material and plurality of indicia-receiving locations. The indicia-receiving locations are defined by
6054256 Method and apparatus for indicating ultraviolet light exposure April 25, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6033465 Colorants and colorant modifiers March 7, 2000
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also impart
6017661 Temporary marking using photoerasable colorants January 25, 2000
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways,
6017471 Colorants and colorant modifiers January 25, 2000
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also impart
6008268 Photoreactor composition, method of generating a reactive species, and applications therefor December 28, 1999
A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with one or more reactive species-generating photoinitiators. Also described are method
5908495 Ink for ink jet printers June 1, 1999
An improved ink suitable for ink jet printing comprising, a mixture of a colorant, an arylketoalkene stabilizing compound or a photoreactor, and a liquid vehicle, wherein the colorant is light-stable. When the photoreactor is combined with a wavelength-selective sensitizer to form a
5891229 Colorant stabilizers April 6, 1999
The present invention is directed to compositions containing a colorant and at least one porphine. The present invention includes an ink set of one or more inks which have substantially identical light fastness properties. One or more of the inks of the ink set includes a colorant and at
5885337 Colorant stabilizers March 23, 1999
The present invention comprises colorant stabilizers and a colorant composition which includes a colorant and a colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant does not fade when exposed to electromagnetic radiation such as su
5865471 Photo-erasable data processing forms February 2, 1999
A data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. The form is composed of a sheet of carrier material and plurality of indicia-receiving locations. The indicia-receiving locations are defined by
5858586 Digital information recording media and method of using same January 12, 1999
A digital information recording media which includes a recording layer comprising a light-stable colored composition which composition is mutable or decolorizable upon exposure to a specific wavelength of ultraviolet radiation. The light-stable colored composition includes a colorant and
5855655 Colorant stabilizers January 5, 1999
The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so t
5854147 Non-woven web containing antimicrobial siloxane quaternary ammonium salts December 29, 1998
A non-woven web having antimicrobial properties made from a melt-extrudable thermoplastic composition. The thermoplastic composition includes a thermoplastic polyolefin and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general
5853883 Polyolefin fibers containing antimicrobial siloxane quaternary ammonium salts December 29, 1998
Fibers having antimicrobial properties made from a melt-extrudable thermoplastic composition. The thermoplastic composition includes a thermoplastic polyolefin and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general class
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