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).

  • Patent number: 6767559
    Abstract: 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: Grant
    Filed: July 15, 2002
    Date of Patent: July 27, 2004
    Assignee: Chattem Chemicals, Inc.
    Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
  • Publication number: 20020197333
    Abstract: 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: Application
    Filed: July 15, 2002
    Publication date: December 26, 2002
    Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
  • Patent number: 6444232
    Abstract: 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: Grant
    Filed: June 23, 2000
    Date of Patent: September 3, 2002
    Assignee: Chattem Chemicals, Inc.
    Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
  • Patent number: 6217729
    Abstract: 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: Grant
    Filed: April 8, 1999
    Date of Patent: April 17, 2001
    Assignee: United States Filter Corporation
    Inventors: Vadim Zolotarsky, David B. Blum, Mark J. Geusic, Irina Ivanter
  • Patent number: 6165343
    Abstract: 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: Grant
    Filed: February 9, 1999
    Date of Patent: December 26, 2000
    Assignee: Elcat, Inc.
    Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
  • Patent number: 6110506
    Abstract: 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: Grant
    Filed: December 30, 1999
    Date of Patent: August 29, 2000
    Assignee: Chattem Chemicals, Inc.
    Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
  • Patent number: 6048552
    Abstract: 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: Grant
    Filed: March 26, 1997
    Date of Patent: April 11, 2000
    Assignee: Chattem Chemicals, Inc.
    Inventors: Joel Swinson, Richard D. Giles, Jack Pitkin, Glenda Fleming, David B. Blum
  • Patent number: 5868911
    Abstract: 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: Grant
    Filed: June 12, 1997
    Date of Patent: February 9, 1999
    Assignee: Elcat, Inc.
    Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
  • Patent number: 5679239
    Abstract: 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: Grant
    Filed: October 8, 1996
    Date of Patent: October 21, 1997
    Assignee: Electrocatalytic, Inc.
    Inventors: David B. Blum, Rodney H. Sergent, Vadim Zolotarsky
  • Patent number: 4639470
    Abstract: 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: Grant
    Filed: December 20, 1985
    Date of Patent: January 27, 1987
    Assignee: Chem Systems, Inc.
    Inventors: R. Lawrence Mednick, David B. Blum
  • Patent number: 4567204
    Abstract: 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: Grant
    Filed: July 23, 1984
    Date of Patent: January 28, 1986
    Assignee: Chem Systems, Inc.
    Inventors: R. Lawrence Mednick, David B. Blum
  • Patent number: 4537876
    Abstract: 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: Grant
    Filed: November 29, 1983
    Date of Patent: August 27, 1985
    Inventors: David B. Blum, Abraham P. Gelbein