Patents by Inventor Stephen Blum

Stephen 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: 10691820
    Abstract: A message distribution system replicates a collection of messages across multiple regional data centers. When any of the data centers receives a message for distribution from an authorized publisher, it transmits the message to each of the other data centers so that the collection of messages is immediately replicated among each data center. When any data center determines that a subscriber is connected to it, that data center determines which messages in the data collection the subscriber is authorized to receive, and it automatically sends those messages to the subscriber.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 23, 2020
    Assignee: PubNub Inc.
    Inventors: Stephen Blum, Todd Greene
  • Patent number: 9965640
    Abstract: A message distribution system replicates a collection of messages across multiple regional data centers. When any of the data centers receives a message for distribution from an authorized publisher, it transmits the message to each of the other data centers so that the collection of messages is immediately replicated among each data center. When any data center determines that a subscriber is connected to it, that data center determines which messages in the data collection the subscriber is authorized to receive, and it automatically sends those messages to the subscriber.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: May 8, 2018
    Assignee: PubNub Inc.
    Inventors: Stephen Blum, Todd Greene
  • Patent number: 9955444
    Abstract: A system synchronizes data across multiple data centers to geographically distributed clients may receive current versions of the objects (or portions of objects) from whatever data center is closest to the client. When one of the data centers receives an application object from a first client, it may save the application object in a data collection at that data center. It may also send the application object to other data centers so that the application object is replicated among each of the other data centers. Each of the data centers will relay the updates to the other data centers subscribing clients via various channels, while at least some of the data centers will make the updates available to clients who request the updates. Optionally, the data centers also may publish change notification messages to the channels.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 24, 2018
    Assignee: PubNub Inc.
    Inventors: Stephen Blum, Dara Kong, Aaron Levy, Bhagat Nainani, Jochen Roth, Jason Oster, Geremy Cohen
  • Publication number: 20120174032
    Abstract: The invention relates to a system and method for a computer game and social experience that captures people's emotions at specific moments during a live or pre-recorded event.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 5, 2012
    Applicant: Trusted Opionion, Inc.
    Inventors: Todd Greene, Stephen Blum, Alexey Chalimov
  • Patent number: 7763373
    Abstract: A method for producing an electrode arrangement for use in a fuel cell. The method includes providing a filament comprising a supporting core and a plurality of webs extending radially from the core, the filament forming a radially internal, electrically conductive first electrode; and pulling a woven stocking over the filament.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 27, 2010
    Assignee: 2S-Sophisticated Systems Limited
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Patent number: 7592091
    Abstract: A microreactor includes a filament comprising a supporting core having an axial length and a plurality of webs extending radially from the core and axially along said length. The filament forms a radially internal, electrically conductive first electrode. The microreactor also includes a radially external membrane having a radially internal envelope surface separated from the core by the webs, thereby forming flow channels in which a fuel component flows against the filament.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: September 22, 2009
    Assignee: 2S-Sophisticated Systems Limited
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Publication number: 20070072053
    Abstract: A microreactor includes a filament comprising a supporting core having an axial length and a plurality of webs extending radially from the core and axially along said length. The filament forms a radially internal, electrically conductive first electrode. The microreactor also includes a radially external membrane having a radially internal envelope surface separated from the core by the webs, thereby forming flow channels in which a fuel component flows against the filament.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 29, 2007
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Publication number: 20070072054
    Abstract: A microreactor includes a filament comprising a supporting core having an axial length and a plurality of webs extending radially from the core and axially along said length. The filament forms a radially internal, electrically conductive first electrode. The microreactor also includes a radially external membrane having a radially internal envelope surface separated from the core by the webs, thereby forming flow channels in which a fuel component flows against the filament.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 29, 2007
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Patent number: 7132190
    Abstract: A microreactor for use in an electrode system of a fuel cell includes a filament having a supporting core and a plurality of spokes extending radially from the core, the filament forming an electrode against which a fuel component flows. A membrane is supported on the spokes to form flow channels for the fuel component, the filament and the membrane supporting each other.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: November 7, 2006
    Assignee: 2S-Sophisticated Systems Limited
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Publication number: 20030059665
    Abstract: The aim of the invention is to provide a mechanically stable microreactor that can be subjected to high electrical loads and that is used in an electrode system of a fuel cell. To this end, a fuel component flows towards a filament (98) through at least one flow channel (102). Said filament is configured as a radially inner electroconducting electrode of the microreactor (97) and is linked with a radially outer membrane (101), the two structures supporting one another. The radially inner peripheral surface of the membrane (101), at least in some sections, is spaced apart from a supporting core (55) of the filament (98) by spokes (100), thereby forming at least one flow channel (102).
    Type: Application
    Filed: December 3, 2002
    Publication date: March 27, 2003
    Inventors: Stephen Blum, Robert Heggemann, Bernd Luhrs
  • Patent number: 6451856
    Abstract: The present invention relates to a method of feeding carnitine supplemented diets to sows during the period of gestation or during both gestation and lactation periods. The method enhances pork productivity by increasing litter and pig birth and weaning weights, reducing the number of stillborn pigs and increasing the number of pigs born alive in the subsequent reproductive cycle. Sow diets of this invention include carnitine, such as L-carnitine or L-carnitine salts. Carnitine is generally added to the swine feed formulation in the amount of from about 5 to about 5,000 ppm.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: September 17, 2002
    Assignees: Lonza Inc., Kansas State University Research Foundation
    Inventors: Stephen A. Blum, Kevin Q. Owen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Rene A. Blum, Robert E. Musser
  • Patent number: 6242487
    Abstract: The present invention relates to a method of feeding carnitine supplemented diets to sows during the period of gestation or during both gestation and lactation periods. The method enhances pork productivity by increasing litter and pig birth and weaning weights, reducing the number of stillborn pigs and increasing the number of pigs born alive in the subsequent reproductive cycle. Sow diets of this invention include carnitine, such as L-carnitine or L-carnitine salts. Carnitine is generally added to the swine feed formulation in the amount of from about 50 to about 5,000 ppm.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: June 5, 2001
    Assignees: Lonza, Inc., Kansas State University Research Foundation
    Inventors: Stephen A. Blum, Kevin Q. Owen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Rene A. Blum, Robert E. Musser
  • Patent number: 5525350
    Abstract: Improved animal diets for oral administration are provided which include a quantity of non-hydrolyzed, non-digested, naturally occurring protein supplemented with a minor amount of an additive selected from the group consisting of di- and tripeptides including an essential amino acid residue. The diets commonly include at least about 8% by weight of such intact protein, which may be derived from typical plant or animal sources. The preferred additive includes an essential amino acid residue selected from the group consisting of lysine, methionine, threonine, tryptophan, isoleucine and valine. Use of the di-and tripeptide additives of the invention gives increased nitrogen use by the animal, as compared with feeding of the amino acid constituents of the additives.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: June 11, 1996
    Assignees: Kansas State University Research Foundation, Lonza, Inc.
    Inventors: Jeffrey A. Hansen, Jim L. Nelssen, Stephen A. Blum, Mike D. Tokach, Robert D. Goodband
  • Patent number: 5374428
    Abstract: Improved animal diets for oral administration are provided which include a quantity of non-hydrolyzed, non-digested, naturally occurring protein supplemented with a minor amount of an additive selected from the group consisting of di- and tripeptides including an essential amino acid residue. The diets commonly include at least about 8% by weight of such intact protein, which may be derived from typical plant or animal sources. The preferred additive includes an essential amino acid residue selected from the group consisting of lysine, methionine, threonine, tryptophan, isoleucine and valine. Use of the di-and tripeptide additives of the invention gives increased nitrogen use by the animal, as compared with feeding of the amino acid constituents of the additives.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: December 20, 1994
    Assignee: Kansas State University Research Foundation
    Inventors: Jeffrey A. Hansen, Jim L. Nelssen, Stephen A. Blum, Mike D. Tokach, Robert L. Goodband
  • Patent number: 5192804
    Abstract: A feed composition containing L-carnitine and a high nutrient density diet is found to increase the lean-to-fat ratio of early weaned pigs. The L-carnitine is preferably reduced as the animal passes through its various stages of development, with initial concentrations ranging from 5 to 5000 ppm. In the finishing stage, less than 5 ppm of L-carnitine may advantageously be incorporated in the diet.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: March 9, 1993
    Assignees: Lonza Inc., Kansas State University Research Foundation, University of Georgia Research
    Inventors: Stephen A. Blum, Robert D. Goodband, Jim L. Nelssen, G. Larry Newton
  • Patent number: 5124357
    Abstract: Feed compositions containing at least 0.6% lysine, preferably between about 0.7 and 0.8% lysine, and between approximately 0.1 to 400 ppm, preferably between 5 and 50 ppm, L-carnitine produce greater weight gains and feed efficiency, and alter fat metabolism, as compared with the same diet in the absence of the carnitine when fed to the finishing pigs. The L-carnitine can also be administered as a feed supplement providing between 0.05 and 15 mg L-carnitine/kg body weight/day, most preferably between 0.1 and 2.0 mg L-carnitine/kg body weight/day. The effect of the carnitine is sex linked, with significantly greater weight gains and feed efficiency observed for gilts than for barrows.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: June 23, 1992
    Assignees: University of Georgia Research Foundation, Inc., Lonza Inc.
    Inventors: G. Larry Newton, Stephen A. Blum, Keith D. Haydon
  • Patent number: 5030657
    Abstract: Fish feed compositions supplemented with up to 0.5% L-carnitine, preferably between 0.01% to 0.3% L-carnitine, produce greater growth gains, decreased fat levels in tissues, and increased resistance to stress (ammonia toxicity) in fish, as compared to fish fed the same diet without supplemental carnitine.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: July 9, 1991
    Assignees: University of Georgia Research Foundation, Inc., Lonza Inc.
    Inventors: Gary J. Burtle, G. Larry Newton, Stephen A. Blum