Patents by Inventor Donald Sutherland

Donald Sutherland 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: 11870818
    Abstract: A management server retrieves access logs associated with a plurality of identities and generates a plurality of behavioral scores for the plurality of identities. The behavioral score for a particular identity increases responsive to access approvals and decreases responsive to access denials for that particular identity. A proxy server receives a first request to access a resource associated with a first identity of the plurality of identities and determines a zero trust access policy for the resource. When a first behavioral score for the first identity satisfies a behavioral score threshold for the zero trust access policy, the proxy server provides the resource. The proxy server receives a second request to access the resource associated with a second identity. When a second behavioral score for the second identity fails to satisfy the behavioral score threshold, the proxy server performs an action defined in the zero trust access policy.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: January 9, 2024
    Assignee: CLOUDFLARE, INC.
    Inventors: Edwin Donald Sutherland, Sheril Nagoormeera
  • Publication number: 20070127617
    Abstract: A unique space propulsion engine is disclosed, which directly uses the kinetic energies of nuclear fission fragments to generate thrust. At the moment of fission, approximately 85% of the total energy produced is kinetic, contained within fission fragments traveling at 4% the speed of light. The propulsion of rockets and other space devices is conventionally accomplished by hurling mass overboard at high velocities, in accordance with the principles of Newton's third law of motion. An important parameter for quantifying propulsion performance is specific impulse (Isp). Propulsion technologies that support today's rocket missions are primarily based on chemical reactions to produce thrust, and are characterized by Isp values peaking at about 400 seconds.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 7, 2007
    Inventor: Donald Sutherland
  • Patent number: 7070767
    Abstract: A method and composition for controlling fossorial rodents are disclosed. The composition is a mixture of water, a foaming agent and a respiratory irritant. The respiratory irritant is preferably finely ground white mustard seeds. The mixture is aerated through a nozzle and pumped into the rodent burrow to exterminate the resident rodent.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: July 4, 2006
    Inventors: Donald Sutherland, David Schmunk
  • Publication number: 20060056570
    Abstract: A unique method to perform space propulsion is disclosed, which directly uses the kinetic energies of nuclear fission atom fragments to generate thrust. At the moment of fission, approximately 85% of the total energy is kinetic, contained within fission fragments traveling at 4% the speed of light. The propulsion of rockets and other space devices is conventionally accomplished by hurtling mass overboard at high velocities. An important parameter for quantifying propulsion performance is specific impulse (Isp). Propulsion technologies that support today's rocket missions are primarily based on chemical reactions to produce thrust, and are characterized by Isp values peaking at about 400 seconds. Advanced space concepts using nuclear energy to heat and exhaust a stored material might operate up to the 800 seconds range.
    Type: Application
    Filed: September 14, 2004
    Publication date: March 16, 2006
    Inventor: Donald Sutherland
  • Publication number: 20030152604
    Abstract: A method and composition for controlling fossorial rodents are disclosed. The composition is a mixture of water, a foaming agent and a respiratory irritant. The respiratory irritant is preferably finely ground white mustard seeds. The mixture is aerated through a nozzle and pumped into the rodent burrow to exterminate the resident rodent.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 14, 2003
    Inventors: Donald Sutherland, David Schmunk
  • Patent number: 6558684
    Abstract: A method and composition for controlling fossorial rodents are disclosed. The composition is a mixture of water, a foaming agent and a respiratory irritant. The respiratory irritant is preferably finely ground white mustard seeds. The mixture is aerated through a nozzle and pumped into the rodent burrow to exterminate the resident rodent.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: May 6, 2003
    Inventor: Donald Sutherland
  • Patent number: 4671506
    Abstract: An amusement device comprises a portable rotary carrousel which is occupant propelled. More particularly, the device comprises a housing anchored angularly on a base and an axle extending upwardly therefrom to accept and support an inclined carrousel. Individuals seated at opposite ends of the carrousel cause the axle to rotate by shifting their weight. Alternatively, the device may include a conventional automobile rear end differential to transmit rotary motion for operation of an external structure. The differential is anchored angularly on the base which has the housing and axle extending upwardly therefrom to accept and support the inclined carrousel. The differential may be operatively connected by a drive shaft, transmission, and universal joint to transmit rotary motion produced by the inclined carrousel for operation of the external structure.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: June 9, 1987
    Inventor: Donald Sutherland
  • Patent number: 4519602
    Abstract: An amusement device comprises a rotatable tub in combination with a cooperative rotary carrousel which is occupant propelled. More particularly, the device comprises a pair of conventional automobile rear end differentials anchored in the ground and spaced apart, operatively connected by a drive shaft and transmission. One differential is anchored angularly and has a housing and axle extending upwardly therefrom to accept and support an inclined carrousel. The other differential has a housing and axle extending vertically therefrom to support a hollow tub mounted atop a platform. Individuals seated at opposite ends of the carrousel cause the axle to rotate by shifting their weight. Rotation of the angular axle is transmitted through one differential, the transmission, a universal joint, the drive shaft, and to the other differential which causes the vertical axle and tub to rotate.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: May 28, 1985
    Inventor: Donald Sutherland