Patents by Inventor Peter C. Foller
Peter C. Foller 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: 7097304Abstract: Certain, non-limiting embodiments of the disclosure provide ophthalmic elements and devices comprising an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of an ophthalmic element or substrate. Further, according to certain non-limiting embodiments, the at least partial coating adapted to polarize at least transmitted radiation comprises at least one at least partially aligned dichroic material. Other non-limiting embodiments of the disclosure provide methods of making ophthalmic elements and devices comprising forming an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of the ophthalmic element or substrate. Optical elements and devices and method of making the same are also disclosed.Type: GrantFiled: October 12, 2005Date of Patent: August 29, 2006Assignee: Transitions Optical Inc.Inventors: Anil Kumar, Peter C. Foller
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Patent number: 7097303Abstract: Certain, non-limiting embodiments of the disclosure provide ophthalmic elements and devices comprising an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of an ophthalmic element or substrate. Further, according to certain non-limiting embodiments, the at least partial coating adapted to polarize at least transmitted radiation comprises at least one at least partially aligned dichroic material. Other non-limiting embodiments of the disclosure provide methods of making ophthalmic elements and devices comprising forming an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of the ophthalmic element or substrate. Optical elements and devices and method of making the same are also disclosed.Type: GrantFiled: January 14, 2004Date of Patent: August 29, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Anil Kumar, Peter C. Foller
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Patent number: 7044599Abstract: Certain, non-limiting embodiments of the disclosure provide ophthalmic elements and devices comprising an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of an ophthalmic element or substrate. Further, according to certain non-limiting embodiments, the at least partial coating adapted to polarize at least transmitted radiation comprises at least one at least partially aligned dichroic material. Other non-limiting embodiments of the disclosure provide methods of making ophthalmic elements and devices comprising forming an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of the ophthalmic element or substrate. Optical elements and devices and method of making the same are also disclosed.Type: GrantFiled: October 12, 2005Date of Patent: May 16, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Anil Kumar, Peter C. Foller
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Patent number: 7044600Abstract: Certain, non-limiting embodiments of the disclosure provide ophthalmic elements and devices comprising an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of an ophthalmic element or substrate. Further, according to certain non-limiting embodiments, the at least partial coating adapted to polarize at least transmitted radiation comprises at least one at least partially aligned dichroic material. Other non-limiting embodiments of the disclosure provide methods of making ophthalmic elements and devices comprising forming an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of the ophthalmic element or substrate. Optical elements and devices and method of making the same are also disclosed.Type: GrantFiled: October 12, 2005Date of Patent: May 16, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Anil Kumar, Peter C. Foller
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Patent number: 6152986Abstract: A method of enriching chlorine gas is described, which method comprises: (a) providing a supported ceramic membrane having a feed side and a permeate side; (b) bringing a feed gas comprising chlorine gas and contaminant gas into contact with the feed side of the ceramic membrane; (c) removing a gaseous permeate depleted in chlorine from the permeate side of the ceramic membrane; and (d) recovering a gas enriched in chlorine from the feed side of the ceramic membrane. The supported ceramic membrane has pore diameters in the range of from 3 angstroms to 12 angstroms. Preferably, the supported ceramic membrane is a substantially cylindrical supported ceramic membrane having a substantially cylindrical internal coaxial passage.Type: GrantFiled: July 7, 1999Date of Patent: November 28, 2000Assignee: PPG Industries Ohio, Inc.Inventor: Peter C. Foller
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Patent number: 5997716Abstract: Described is a method of electrochemically converting .alpha.-halohydrins, e.g., 1-chloro-2-hydroxypropane and 1,3-dichloro-2-hydroxypropane, to epoxides, e.g., propylene oxide and epichlorohydrin. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and an anion exchange membrane, (2) an anode compartment containing an anode assembly comprising either (a) a hydrogen consuming gas diffusion anode and a current collecting electrode or (b) a hydrogen consuming gas diffusion anode which is fixedly held between a hydraulic barrier and a current collecting electrode, and (3) an intermediate compartment separated from the catholyte and anode compartments by the anion exchange membrane and either (i) the hydrogen consuming gas diffusion anode or (ii) the hydraulic barrier respectively. An aqueous solution of .alpha.Type: GrantFiled: July 9, 1998Date of Patent: December 7, 1999Assignee: PPG Industries Ohio, Inc.Inventors: David G. Roberts, Peter C. Foller, Robert H. Tang, Yingchao Zhang
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Patent number: 5997715Abstract: Describes a method of electrochemically converting .alpha.-halohydrins, e.g., 1-chloro-2-hydroxypropane and 1,3-dichloro-2-hydroxypropane, to epoxides, e.g., propylene oxide and epichlorohydrin. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and anion exchange membrane, (2) an anolyte compartment containing an anode assembly comprising an anode and a cation exchange membrane, and (3) an intermediate compartment partitioned from the catholyte and anolyte compartments by the anion and cation exchange membranes respectively. An aqueous solution of .alpha.-halohydrin is charged to the catholyte compartment, while hydrogen halide solutions are charged to the intermediate and anolyte compartments. Direct current is passed through the electrolytic cell and an aqueous solution comprising epoxide is removed from the catholyte compartment.Type: GrantFiled: July 9, 1998Date of Patent: December 7, 1999Assignee: PPG Industries Ohio, Inc.Inventors: David G. Roberts, Peter C. Foller, Robert H. Tang, Yingchao Zhang, James R. Franks
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Patent number: 5980724Abstract: Described is a method of electrochemically converting .alpha.-halohydrins, e.g., 1-chloro-2-hydroxypropane and 1,3-dichloro-2-hydroxypropane, to epoxides, e.g., propylene oxide and epichlorohydrin. An electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and a bipolar ion exchange membrane, (2) an anode compartment containing an anode assembly comprising either (a) a hydrogen consuming gas diffusion anode and a current collecting electrode or (b) a hydrogen consuming gas diffusion anode which is fixedly held between a hydraulic barrier and a current collecting electrode, and (3) at least one pair of intermediate compartments separating the catholyte and anode compartments and separated from each other by an anion exchange membrane. The following are introduced into the cell: a first aqueous conductive electrolyte solution into the catholyte compartment; hydrogen gas into the anode compartment; an aqueous solution of .alpha.Type: GrantFiled: July 9, 1998Date of Patent: November 9, 1999Assignee: PPG Industries Ohio, Inc.Inventors: David G. Roberts, Peter C. Foller, Robert H. Tang, Yingchao Zhang
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Patent number: 5972195Abstract: Describes a method of electrochemically converting .alpha.-halohydrin, e.g., 1-chloro-2-hydroxypropane and 1,3-dichloro-2-hydroxypropane, to epoxide, e.g., propylene oxide and epichlorohydrin. An aqueous solution of .alpha.-halohydrin is charged to the catholyte compartment of an electrolytic cell, which contains a cathode, hydrogen gas is charged to the anode compartment of the cell, which contains an anode assembly comprising a hydrogen consuming gas diffusion anode fixedly held between a current collecting electrode and an anion exchange membrane. The catholyte and anode compartments of the cell are separated by the anion exchange membrane. An aqueous solution containing epoxide is removed from the catholyte compartment.Type: GrantFiled: July 9, 1998Date of Patent: October 26, 1999Assignee: PPG Industries Ohio, Inc.Inventors: David G. Roberts, Peter C. Foller, Robert H. Tang, Yingchao Zhang
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Patent number: 5906722Abstract: Describes a method of electrochemically converting amine hydrohalide, e.g., ethyleneamine hydrochloride, into free amine, e.g., free ethyleneamine. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and an anion exchange membrane, (2) an anode compartment containing an anode assembly comprising either (a) a hydrogen consuming gas diffusion anode and a current collecting electrode or (b) a hydrogen consuming gas diffusion anode which is fixedly held between a hydraulic barrier and a current collecting electrode, and (3) an intermediate compartment separated from the catholyte and anode compartments by the anion exchange membrane and either (i) the hydrogen consuming gas diffusion anode or (ii) the hydraulic barrier respectively.Type: GrantFiled: August 18, 1997Date of Patent: May 25, 1999Assignee: PPG Industries, Inc.Inventors: Peter C. Foller, David G. Roberts, Robert H. Tang
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Patent number: 5904829Abstract: Describes a method of electreochemically converting amine hydrohalide, e.g., amine hydrochloride, into free amine, e.g., free ethyleneamine. An electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and a bipolar ion exchange membrane, (2) an anode compartment containing an anode assembly comprising either (a) a hydrogen consuming gas diffusion anode and a current collecting electrode or (b) a hydrogen consuming gas diffusion anode which is fixedly held between a hydraulic barrier and a current collecting electrode, and (3) at least one pair of intermediate compartments separating the catholyte and anode compartments and separated from each other by an anion exchange membrane.Type: GrantFiled: August 18, 1997Date of Patent: May 18, 1999Assignee: PPG Industries, Inc.Inventors: Peter C. Foller, David G. Roberts, Robert H. Tang
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Patent number: 5900133Abstract: Describes a method of electrochemically converting amine hydrohalide, e.g., ethyleneamine hydrochloride, into free amine, e.g., free ethyleneamine. A three compartment electrolytic cell is provided having (1) a catholyte compartment containing a cathode assembly comprising a cathode and anion exchange membrane, (2) an anolyte compartment containing an anode assembly comprising an anode and a cation exchange membrane, and (3) an intermediate compartment separated from the catholyte and anolyte compartments by the anion and cation exchange membranes respectively. An aqueous solution of amine hydrohalide is charged to the catholyte compartment, while hydrogen halide solutions are charged to the intermediate and anolyte compartments. Direct current is passed through the electrolytic cell and an aqueous solution comprising free amine is removed from the catholyte compartment.Type: GrantFiled: August 18, 1997Date of Patent: May 4, 1999Assignee: PPG Industries, Inc.Inventors: Peter C. Foller, David G. Roberts, Robert H. Tang, James R. Franks
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Patent number: 5882501Abstract: Describes a method of electrochemically converting amine hydrohalide, e.g., ethyleneamine hydrochloride, into free amine, e.g., free ethyleneamine, by charging an aqueous solution of amine hydrohalide to the catholyte compartment of an electrolytic cell, which contains a cathode, charging hydrogen gas to the anode compartment of the cell, which contains an anode assembly comprised of a hydrogen consuming gas diffusion anode fixedly held between a current collecting electrode and an anion exchange membrane. The catholyte and anode compartments of the cell are separated by the anion exchange membrane. An amine hydrohalide solution containing free amine is removed from the catholyte compartment.Type: GrantFiled: August 18, 1997Date of Patent: March 16, 1999Assignee: PPG Industries, Inc.Inventors: Peter C. Foller, David G. Roberts, Robert H. Tang
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Patent number: 5250162Abstract: A method of reducing Ti(IV) to Ti(III) in which the Ti(IV) in acid solution is fed to an electrochemical cell having a semi-hydrophobic gas diffusion anode to which hydrogen gas is supplied. A current is passed through the cell to effect the electrochemical reduction and the Ti(III) is recovered for use as a re-attack solution in titanium dioxide pigment production or for use in indirect organic reductions. Ti(III) salts may also be recovered for use, for example, in the reduction of organic compounds.Type: GrantFiled: January 29, 1992Date of Patent: October 5, 1993Assignee: Metallgesellschaft AGInventors: Peter C. Foller, Ravi Vora, Robert J. Allen
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Patent number: 5102632Abstract: A two-stage method of recovering the noble metal content of a mixture of noble metals, for example, platinum, palladium, and rhodium, this mixture being, for example, comprises on or throughout a pellet or on or throughout a ceramic monolith of a spent catalyst, the method comprising first reductive chlorination at an elevated temperature by a gaseous chlorinating agent in the presence of a reducing agent (preferably the reducing agents sulfur dioxide and carbon monoxide in stages); minimizing the amount of aluminum trichloride formed from either washcoat or underlying ceramic chlorination, and separating the aluminum trichloride or other washcoat chlorides from the products of chlorination of the noble metals, as by sublimation of the former in a reducing atmosphere at a temperature below the vaporization temperatures of the latter, thereby recovering the noble metal chlorides in a concentrated form.Type: GrantFiled: December 21, 1990Date of Patent: April 7, 1992Assignee: Metallgesellschaft AktiengesellschaftInventors: Robert J. Allen, Peter C. Foller, James Giallombardo
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Patent number: 4595469Abstract: Disclosed is a process for the production of gaseous hydrogen chloride and aqueous alkali metal hydroxide from brine, utilizing an electrolytic cell containing a hydroxyl ion producing cathode and a gaseous hydrogen chloride producing hydrogen-consuming gas anode. Brine is fed to the anolyte compartment of the cell while alkali metal hydroxide is removed from the catholyte compartment of the cell, and gaseous hydrogen chloride is removed from the gaseous side of the hydrogen-consuming gas anode.Type: GrantFiled: February 5, 1985Date of Patent: June 17, 1986Assignee: Chevron Research CompanyInventor: Peter C. Foller
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Patent number: 4560443Abstract: Disclosed is a gaseous diffusion anode and a process for the production of gaseous hydrogen chloride in an electrolytic cell.Type: GrantFiled: December 5, 1983Date of Patent: December 24, 1985Assignee: Chevron Research CompanyInventor: Peter C. Foller
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Patent number: 4541989Abstract: Electrolytic cell and method of use thereof is provided for the production of ozone. The cell comprises at least one inert glassy carbon, lead dioxide or platinum anode, and at least one air cathode for reducing oxygen and electrolyte comprising tetrafluoroborate anions.Type: GrantFiled: January 27, 1983Date of Patent: September 17, 1985Assignee: Oxytech, Inc.Inventor: Peter C. Foller
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Patent number: 4477322Abstract: Disclosed is a gaseous diffusion anode and a process for the production of gaseous hydrogen chloride in an electrolytic cell.Type: GrantFiled: May 31, 1983Date of Patent: October 16, 1984Assignee: Chevron Research CompanyInventor: Peter C. Foller
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Patent number: 4375395Abstract: In electrolytic cells for producing ozone, the ozone current efficiencies can be enhanced by providing electrodes, and especially anodes, fabricated from glassy carbon. Cells including such glassy carbon electrodes are capable of producing ozone at very high current efficiencies utilizing aqueous electrolytes of highly electronegative fluoro-anions.Type: GrantFiled: May 21, 1981Date of Patent: March 1, 1983Inventors: Peter C. Foller, Mark L. Goodwin, Charles W. Tobias