Patents by Inventor Maurice J. Fitzgerald
Maurice J. Fitzgerald 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: 6148260Abstract: The present invention provides a network accessible service which integrates both a business directory and a map database. A user can search the business directory in a variety of methods, including using aspects of the map database (i.e., a radius) to quantify the search. The user can then obtain directions from a specified user location to a selected search result. All of this is conveniently accomplished through a single website access.Type: GrantFiled: June 29, 1999Date of Patent: November 14, 2000Assignee: Zip2Inventors: Elon Musk, Maurice J. Fitzgerald, II
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Patent number: 5944769Abstract: The present invention provides a network accessible service which integrates both a business directory and a map database. A user can search the business directory in a variety of methods, including using aspects of the map database (i.e., a radius) to quantify the search. The user can then obtain directions from a specified user location to a selected search result. All of this is conveniently accomplished through a single website access.Type: GrantFiled: November 8, 1996Date of Patent: August 31, 1999Assignee: Zip2 CorporationInventors: Elon Musk, Maurice J. Fitzgerald, II
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Patent number: 5795698Abstract: The present invention discloses a lithographic printing plate developable on a lithographic printing press equipped with means for delivering lithographic ink and aqueous fountain solutions to the printing plate, the lithographic printing plate having in order (a) a printing plate substrate; and (b) a photoresist photohardenable upon imagewise exposure to actinic radiation, the photoresist comprising (i) a macromolecular organic binder; (ii) a photopolymerizable ethylenically unsaturated monomer having at least one terminal ethylenic group capable of forming a high polymer by chain-propagated polymerization, (iii) a polymerization initiator activatable by actinic radiation, and (iv) an amphoteric hydrogen bond-forming developability stabilizer, the hydrogen bond-forming developability stabilizer being non-volatile miscible in the photoresist and soluble in said lithographic ink and fountain solutions; the amphoteric hydrogen bond-forming developability stabilizer possessing a strong hydrogen bond-forming funcType: GrantFiled: April 14, 1997Date of Patent: August 18, 1998Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Michael J. Jurek, Rong-Chang Liang, Richard J. Sugrue
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Patent number: 5607816Abstract: Described is the use of a plasticizing-permeation enhancing additive in negative-working, on-press developable lithographic printing plates. Briefly, a plasticizer, which is dispersible or soluble in press fountain and ink solutions and soluble in acrylic monomers and oligomers, are incorporated into a plate's photoresist at concentrations sufficient to enhance said resist's permeability to or diffusion by press solutions. Such additives make the photoresist more permeable to fountain solution prior to crosslinking, while being easily extracted with ink and fountain solution after crosslinking. In certain embodiments, a surfactant is added to facilitate the dispersion of hydrophobic remnants of removed resist material in the fountain solution, and thereby reduce scumming. Lithium salts may also be incorporated into the photoresist to disrupt hydrogen bonding of, for example, urethane acrylate polymers which tend to associate by hydrogen bonding.Type: GrantFiled: September 21, 1995Date of Patent: March 4, 1997Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, John M. Hardin, Frederick R. Kearney, Rong-Chang Liang
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Patent number: 5599650Abstract: The present invention provides a lithographic printing plate comprising a substrate and a photocurable polymeric photoresist, such as those based on free-radical initiated photocuring mechanisms. To constrain detrimental and undesired activity of excess free radicals, an embodiment of the printing plate is further provided with a free-radical regulating system. In a particular embodiment, the free-radical regulating system is provided as an overcoat, the overcoat being a light-transmissive overcoat and comprising a polymer having a pendant free-radical trapping group. A particular polymer for the overcoat has the formula ##STR1## wherein, m is from approximately 20% by weight to approximately 95% by weight, and n is from approximately 0% by weight to approximately 75% by weight. Capable of deactivating free-radicals actinically generated in the photoresist subsequent to exposure, the polymer is soluble in fountain or ink solution and incompatible with the photoresist.Type: GrantFiled: April 28, 1995Date of Patent: February 4, 1997Assignee: Polaroid CorporationInventors: Daoshen Bi, Maurice J. Fitzgerald, Frederick R. Kearney, Rong-Chang Liang, William C. Schwarzel, Tung-Feng Yeh
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Patent number: 5561029Abstract: The present invention sets forth the incorporation of a substituted 2-phenyl-4,6-bis (trichloromethyl)-1,3,5-triazine in photoresists of lithographic printing plates for the purpose of promoting their shelf-life, room light stability, and developability. The present invention provides a photocurable composition comprising at least a photopolymerizable ethylenically unsaturated monomer having at least one terminal ethylenic group and capable of forming a polymer upon exposure to actinic radiation; and an s-triazine capable of initiating free radical polymerization of the photopolymerizable ethylenically unsaturated monomer and being represented by the following general formula [I]: ##STR1## wherein R.sub.1 is either OR.sub.4 or NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 may or may not be identical with each other, either R.sub.5 or R.sub.6 may represent hydrogen, and wherein R.sub.4 and at least one of R.sub.5 and R.sub.Type: GrantFiled: April 28, 1995Date of Patent: October 1, 1996Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Frederick R. Kearney, Rong-Chang Liang, William C. Schwarzel, Donna J. Guarrera, John M. Hardin, John C. Warner
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Patent number: 5556924Abstract: A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl-.alpha.,.alpha.Type: GrantFiled: February 15, 1996Date of Patent: September 17, 1996Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Frederick R. Kearney, Rong-Chang Liang, William C. Schwarzel
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Patent number: 5514522Abstract: A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl-.alpha.,.alpha.Type: GrantFiled: April 27, 1995Date of Patent: May 7, 1996Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Frederick R. Kearney, Rong-Chang Liang, William C. Schwarzel
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Patent number: 4350759Abstract: A photosensitive silver halide emulsion wherein the emulsion binder comprises an allyl amine polymer or copolymer.Type: GrantFiled: March 30, 1981Date of Patent: September 21, 1982Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Thomas E. Platt
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Patent number: 4315071Abstract: A photosensitive silver halide emulsion wherein the emulsion binder comprises a styryl amine polymer or copolymer.Type: GrantFiled: March 30, 1981Date of Patent: February 9, 1982Assignee: Polaroid CorporationInventor: Maurice J. Fitzgerald
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Patent number: 4131471Abstract: A photosensitive silver halide emulsion wherein the silver halide peptizer comprises a halogenated acrylate polymer or copolymer.Type: GrantFiled: June 13, 1977Date of Patent: December 26, 1978Assignee: Polaroid CorporationInventor: Maurice J. Fitzgerald
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Patent number: 4120727Abstract: A photosensitive silver halide emulsion wherein the silver halide peptizer comprises a cyanoalkyl acrylate polymer or copolymer.Type: GrantFiled: June 13, 1977Date of Patent: October 17, 1978Assignee: Polaroid CorporationInventor: Maurice J. Fitzgerald
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Patent number: 4089688Abstract: A photosensitive silver halide emulsion preferably gelatin-free wherein the emulsion peptizer comprises an N-alkenyl carbamate polymer or copolymer.Type: GrantFiled: June 13, 1977Date of Patent: May 16, 1978Assignee: Polaroid CorporationInventor: Maurice J. Fitzgerald
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Patent number: 4022623Abstract: A photosensitive silver halide emulsion wherein the emulsion binder comprises a polyvinyl aminimide polymer or copolymer.Type: GrantFiled: October 28, 1975Date of Patent: May 10, 1977Assignee: Polaroid CorporationInventors: Maurice J. Fitzgerald, Henry S. Kolesinski, Lloyd D. Taylor