Patents by Inventor David B. Blum
David B. Blum 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: 6767559Abstract: The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixed in aqueous solutions. In addition, the present invention provides processes for preparing the suspensions which comprise admixing the DASC compositions of the present invention with aqueous solutions. Finally, the present invention provides processes for preparing the DASC compositions of the present invention.Type: GrantFiled: July 15, 2002Date of Patent: July 27, 2004Assignee: Chattem Chemicals, Inc.Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
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Publication number: 20020197333Abstract: The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixed in aqueous solutions. In addition, the present invention provides processes for preparing the suspensions which comprise admixing the DASC compositions of the present invention with aqueous solutions. Finally, the present invention provides processes for preparing the DASC compositions of the present invention.Type: ApplicationFiled: July 15, 2002Publication date: December 26, 2002Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
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Patent number: 6444232Abstract: The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixed in aqueous solutions. In addition, the present invention provides processes for preparing the suspensions which comprise admixing the DASC compositions of the present invention with aqueous solutions. Finally, the present invention provides processes for preparing the DASC compositions of the present invention.Type: GrantFiled: June 23, 2000Date of Patent: September 3, 2002Assignee: Chattem Chemicals, Inc.Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
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Patent number: 6217729Abstract: The present invention provides an improved anode formulation and an improved method of manufacture. More specifically, the invention provides a tri-layer anode having an improved service life when used, for example, for steel strip electrogalvinizing. In one embodiment of the invention, the anode is comprised of a titanium substrate which is roughened and heat treated and subsequently coated with a first coating of iridium oxide/tantalum oxide. After the anode is heat treated, it is next coated, preferably by an electrodeposition process with a second coating of platinum. Finally, the anode is coated with a third coating of iridium oxide/tantalum oxide and subsequently heat treated.Type: GrantFiled: April 8, 1999Date of Patent: April 17, 2001Assignee: United States Filter CorporationInventors: Vadim Zolotarsky, David B. Blum, Mark J. Geusic, Irina Ivanter
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Patent number: 6165343Abstract: The present invention provides a process for generating an aqueous solution containing at least one active bromine compound comprising the steps of: electrolyzing an aqueous solution containing bromide ions until bromate ions are formed in said aqueous solution; and introducing to the aqueous solution containing bromate ions an acid to generate an aqueous solution containing at least one active bromine compound. The present invention also provides an apparatus for generating an aqueous solution containing at least one active bromine compound. The aqueous solution containing the active bromine compound(s) generated using the process and apparatus of the present invention may be used for water treatment and the recovery of precious metals such as gold.Type: GrantFiled: February 9, 1999Date of Patent: December 26, 2000Assignee: Elcat, Inc.Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
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Patent number: 6110506Abstract: The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixed in aqueous solutions. In addition, the present invention provides processes for preparing the suspensions which comprise admixing the DASC compositions of the present invention with aqueous solutions. Finally, the present invention provides processes for preparing the DASC compositions of the present invention.Type: GrantFiled: December 30, 1999Date of Patent: August 29, 2000Assignee: Chattem Chemicals, Inc.Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
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Patent number: 6048552Abstract: The present invention provides DASC compositions, which upon introduction into aqueous solutions, form stable, non-gritty suspensions. The present invention also provides stable, non-gritty suspensions comprising the DASC compositions of the present invention admixed in aqueous solutions. In addition, the present invention provides processes for preparing the suspensions which comprise admixing the DASC compositions of the present invention with aqueous solutions. Finally, the present invention provides processes for preparing the DASC compositions of the present invention.Type: GrantFiled: March 26, 1997Date of Patent: April 11, 2000Assignee: Chattem Chemicals, Inc.Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
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Patent number: 5868911Abstract: The present invention provides a process for generating an aqueous solution containing at least one active bromine compound comprising the steps of: electrolyzing an aqueous solution containing bromide ions until bromate ions are formed in said aqueous solution; and introducing to the aqueous solution containing bromate ions an acid to generate an aqueous solution containing at least one active bromine compound. The present invention also provides an apparatus for generating an aqueous solution containing at least one active bromine compound. The aqueous solution containing the active bromine compound(s) generated using the process and apparatus of the present invention may be used for water treatment and the recovery of precious metals such as gold.Type: GrantFiled: June 12, 1997Date of Patent: February 9, 1999Assignee: Elcat, Inc.Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
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Patent number: 5679239Abstract: The present invention provides a process for generating an aqueous solution containing at least one active bromine compound comprising the steps of: electrolyzing an aqueous solution containing bromide ions so that bromate ions are formed in said aqueous solution; and introducing to the aqueous solution containing bromate ions an acid to generate an aqueous solution containing at least one active bromine compound. The present invention also provides an apparatus for generating an aqueous solution containing at least one active bromine compound. The aqueous solution containing the active bromine compound(s) generated using the process and apparatus of the present invention may be used for water treatment and the recovery of precious metals such as gold.Type: GrantFiled: October 8, 1996Date of Patent: October 21, 1997Assignee: Electrocatalytic, Inc.Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
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Patent number: 4639470Abstract: Methanol is made in a liquid-phase methanol reactor by entraining a methanol-forming catalyst in an inert liquid and contacting said entrained catalyst with a synthesis gas comprising hydrogen and carbon monoxide.Type: GrantFiled: December 20, 1985Date of Patent: January 27, 1987Assignee: Chem Systems, Inc.Inventors: R. Lawrence Mednick, David B. Blum
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Patent number: 4567204Abstract: Methanol is made in a liquid-phase methanol reactor by entraining a methanol-forming catalyst in an inert liquid and contacting said entrained catalyst with a synthesis gas comprising hydrogen and carbon monoxide.Type: GrantFiled: July 23, 1984Date of Patent: January 28, 1986Assignee: Chem Systems, Inc.Inventors: R. Lawrence Mednick, David B. Blum
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Patent number: 4537876Abstract: A method for activating a methanol synthesis catalyst is disclosed. In this method, the catalyst is slurried in an inert liquid and is activated by a reducing gas stream. The activation step occurs in-situ. That is, it is conducted in the same reactor as is the subsequent step of synthesizing methanol from a methanol gas stream catalyzed by the activated catalyst still dispersed in a slurry.Type: GrantFiled: November 29, 1983Date of Patent: August 27, 1985Inventors: David B. Blum, Abraham P. Gelbein