Patents by Inventor Piyush Narendra Zaveri
Piyush Narendra Zaveri 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).
-
Patent number: 7749394Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon wherein at least a portion of the plurality of filter particles is at least partially coated with silver or a silver-containing material. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.Type: GrantFiled: May 13, 2009Date of Patent: July 6, 2010Assignee: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7740766Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.Type: GrantFiled: May 13, 2009Date of Patent: June 22, 2010Assignee: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7740765Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3.Type: GrantFiled: May 13, 2009Date of Patent: June 22, 2010Assignee: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7614507Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.Type: GrantFiled: November 11, 2003Date of Patent: November 10, 2009Assignee: PUR Water Purification Products Inc.Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7614506Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles.Type: GrantFiled: June 18, 2003Date of Patent: November 10, 2009Assignee: PUR Water Purification Products Inc.Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7614508Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.Type: GrantFiled: November 11, 2003Date of Patent: November 10, 2009Assignee: PUR Water Purification Products Inc.Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Publication number: 20090230061Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3.Type: ApplicationFiled: May 13, 2009Publication date: September 17, 2009Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Wolley
-
Publication number: 20090218291Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.Type: ApplicationFiled: May 13, 2009Publication date: September 3, 2009Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Publication number: 20090218292Abstract: Disclosed is a method of providing portable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon wherein at least a portion of the plurality of filter particles is at least partially coated with silver or a silver-containing material. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.Type: ApplicationFiled: May 13, 2009Publication date: September 3, 2009Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 7108440Abstract: An applicator (10) for distributing a substance onto a target surface, said applicator including a first side (24) having a first internal surface (32) and a first external surface (31), a second side (26) having a second internal surface (34) and a second external surface (33) and a flexible film dosing reservoir (30) containing a product. The flexible film dosing reservoir (30) is disposed between said first external surface (31) of said first side (24) and said second internal surface (34) of said second side (26), said product adapted to be release via application of pressure to said reservoir (30).Type: GrantFiled: October 10, 2000Date of Patent: September 19, 2006Assignee: The Procter & Gamble CompanyInventors: Dana Paul Gruenbacher, James Herbert Davis, Thomas James Manske, Jr., Kevin Joe Fields, Piyush Narendra Zaveri, Gary Curtis Joseph, Dean Arthur Zimmerman
-
Patent number: 7021848Abstract: A semi-enclosed applicator (10) for distributing a substance onto a target surface is disclosed having a first side (24) having a first internal surface (32) and a first external surface (31); a second side (26) having a second internal surface (34) and a second external surface (33); an internal cavity (29) between the first and second internal surfaces that is externally accessible, and a temperature changing element. The flexible film pouch (30) contains a product located proximately to the first side (24).Type: GrantFiled: October 10, 2000Date of Patent: April 4, 2006Assignee: The Procter & Gamble CompanyInventors: Dana Paul Gruenbacher, James Herbert Davis, Kevin Joe Fields, Thomas James Manske, Jr., Piyush Narendra Zaveri, Gary Curtis Joseph
-
Patent number: 6811338Abstract: A disposable, semi-enclosed applicator for distributing a substance onto a target surface is disclosed. The applicator has a first side, a second side, and an internal cavity between the first and second sides. The applicator is provided with at least one opening so that the intemnal cavity is externally accessible. Further, the applicator has a ratio of absorbency of the second side to the first side of at about 1.5.Type: GrantFiled: March 27, 2002Date of Patent: November 2, 2004Assignee: The Procter & Gamble CompanyInventors: Thomas James Manske, Jr., Dana Paul Gruenbacher, James Herbert Davis, Gary Curtis Joseph, Piyush Narendra Zaveri
-
Publication number: 20040164018Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter mateial formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.Type: ApplicationFiled: November 11, 2003Publication date: August 26, 2004Applicant: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Publication number: 20040159596Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.Type: ApplicationFiled: November 11, 2003Publication date: August 19, 2004Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Publication number: 20030217963Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter mateial formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles.Type: ApplicationFiled: June 18, 2003Publication date: November 27, 2003Applicant: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Publication number: 20030217967Abstract: A process for producing a water filter material is provided. The process includes the steps of providing a plurality of mesoporous activated carbon particles, and treating said plurality of mesoporous activated carbon particles to produce a plurality of mesoporous activated carbon particles having a bulk oxygen percentage by weight of less than about 2.3%.Type: ApplicationFiled: June 18, 2003Publication date: November 27, 2003Applicant: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley, Thomas Joseph Wehmeier
-
Publication number: 20030096703Abstract: A process for producing a water filter material is provided. The process includes the steps of providing a plurality of carbon particles having a point of zero charge of less than about 7, wherein the sum of the mesopore and macropore volumes of the plurality of filter particles is greater than about 0.12 mL/g. The plurality of carbon particles are exposed to a converting agent and heated in a furnace after the step of exposing.Type: ApplicationFiled: August 23, 2001Publication date: May 22, 2003Applicant: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Biorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 6547063Abstract: An article for the delivery of personal care foams including a package comprising a container having flexible, deformable walls, an opening portion, a first sponge and a foaming composition. The package also includes at least one temperature changing element. The temperature changing element may include an anhydrous reaction, heats of solution, oxidation reactions, crystallization, electro-chemical heaters, zeolite-liquid systems and heats of neutralization. Further, the container may also include a second sponge.Type: GrantFiled: October 10, 2000Date of Patent: April 15, 2003Assignee: The Procter & Gamble CompanyInventors: Piyush Narendra Zaveri, Gary Curtis Joseph, Jennifer Sue Dwyer, James Anthony Wilson, Alic Anthony Scott, Dennis Eugene Kuhlman, Raymond Edward Bolich, Charlene Marie Stevenot
-
Publication number: 20030038084Abstract: A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing which is formed at least in part from a plurality of filter particles. The filter particles have a point of zero charge greater than about 7 and the sum of the mesopore and macropore volumes of the plurality of filter particles is greater than about 0.12 mL/g.Type: ApplicationFiled: August 23, 2001Publication date: February 27, 2003Applicant: The Procter & Gamble CompanyInventors: Michael Donovan Mitchell, Dimitrls Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
-
Patent number: 6484514Abstract: A temperature modifying system for heating or cooling a product including a flexible outer container containing a product and a self-enclosed temperature-changing element is disclosed. The temperature-changing element includes a flexible pouch at least partially immersed in said product. The flexible film pouch may have two components separated by a rupturable barrier that is adapted to burst under an application of pressure allowing the two components to combine or react in an exothermic or endothermic event. The flexible film pouch may alternatively include a saturated salt solution that generates as it drops out of solution.Type: GrantFiled: October 10, 2000Date of Patent: November 26, 2002Assignee: The Procter & Gamble CompanyInventors: Gary Curtis Joseph, Piyush Narendra Zaveri