Patents by Inventor Curtis J. Crawford

Curtis J. Crawford 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).

  • Publication number: 20200000774
    Abstract: The invention relates to heterocyclic compounds consisting of a core nitrogen atom surrounded by three pendant groups, wherein two of the three pendant groups are preferably benzimidazolyl methyl and tetrahydroquinolyl, and the third pendant group contains N and optionally contains additional rings. The compounds bind to chemokine receptors, including CXCR4 and CCR5, and demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
    Type: Application
    Filed: April 10, 2019
    Publication date: January 2, 2020
    Inventors: Gary J. Bridger, Renato T. Skerlj, Al Kaller, Curtis Harwig, David Bogucki, Trevor R. Wilson, Jason B. Crawford, Ernest J. McEachern, Bem Atsma, Siqiao Nan, Yuanxi Zhou, Dominique Schols, Christopher Dennis Smith, Maria Rosaria Di Fluri
  • Patent number: 10322111
    Abstract: The invention relates to heterocyclic compounds consisting of a core nitrogen atom surrounded by three pendant groups, wherein two of the three pendant groups are preferably benzimidazolyl methyl and tetrahydroquinolyl, and the third pendant group contains N and optionally contains additional rings. The compounds bind to chemokine receptors, including CXCR4 and CCR5, and demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: June 18, 2019
    Assignee: GENZYME CORPORATION
    Inventors: Gary J. Bridger, Renato T. Skerlj, Al Kaller, Curtis Harwig, David Earl Bogucki, Trevor R. Wilson, Jason B. Crawford, Ernest J. McEachern, Bem Atsma, Siqiao Nan, Yuanxi Zhou, Dominique Schols, Christopher Dennis Smith, Maria Rosario DiFluri
  • Publication number: 20190168338
    Abstract: A device for distributing gas near a weld location includes a cap, a funnel, an inlet, and an aperture. The cap includes a sidewall and an annular lip, and defines a reservoir between the sidewall and the annular lip. The annular lip includes a proximal-most edge. The cap defines an opening, and defines a longitudinal axis. The funnel is disposed adjacent a distal end of the cap. The inlet is disposed in mechanical cooperation with the cap. The aperture is disposed through the sidewall of the cap and is in fluid communication with the inlet. The aperture is disposed distally of the proximal-most edge of the annular lip. Gas is configured to flow through the inlet, through the aperture and into the reservoir. The reservoir is configured to allow the gas to uniformly overflow the proximal-most edge of the annular lip and flow distally through the opening defined by the cap.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Inventors: CURTIS S. GERMAN, JAMES J. CRAWFORD, MICHAEL T. PIKE
  • Patent number: 6984173
    Abstract: The invention relates to a bonus feature in a slot machine. This bonus feature may be used in stand-alone slot machines as well as linked slot machines. The preferred embodiment is directed to a system of linked gaming machines. In one embodiment, each linked gaming machines operates like a conventional machine where the generation and display of certain combinations of symbols within a first group of combinations provide awards to the individual players whose machines generate such combinations. In addition to this normal mode of play, a bonus feature is added where the generation and display of combinations of symbols within a second group of combinations are used in the awarding of a bonus. In such a feature, the generation of a combination of symbols within the second group of combinations is used in a bonus award game. The display on each machine may be a video display that displays the main game as well as the bonus game. Since both games can be run using the same electrical circuitry (e.g.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: January 10, 2006
    Assignee: Multimedia Games, Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford
  • Patent number: 6270412
    Abstract: A method for operating a rotating reel type slot machine, or a video machine which depicts rotating reels, is described herein which allows a player to save in memory one or more symbols from one or more previous games and use those symbols in a current game to obtain a winning combination. In one embodiment, multiple sets of reels are employed, and saved symbols from a primary sets of reels may be used for any of said multiple sets of reels in subsequent games. In one embodiment, additional coins may be deposited to allow the use of saved symbols with additional reel sets. In another embodiment, a special symbol displayed by a first set of reels causes corresponding reels in second and third sets of reels to stop at the special symbol.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: August 7, 2001
    Assignee: Sigma Game, Inc.
    Inventors: Curtis J. Crawford, James P. Jackson
  • Patent number: 6168523
    Abstract: A system of linked gaming machines has each of the linked gaming machines connected to a common controller. In a normal mode of play, each of the linked gaming machines operates like a conventional machine where the generation of certain combinations of symbols provide awards to the individual players whose machines generate such combinations. In addition to this normal mode of play, a bonus feature is added where the generation of combinations of bonus symbols is used by a central controller to build up a pooled bonus value based upon the values of the combinations of bonus symbols generated by all the linked gaming machines. When a player hits a combination which causes the accumulated bonus value to meet or exceed a predetermined value, a bonus award is given to the player which caused the threshold to be exceeded.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: January 2, 2001
    Assignee: Sigma Game Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford
  • Patent number: 6012982
    Abstract: A system of linked gaming machines is disclosed where each of the linked gaming machines is connected to a common controller. In a normal mode of play, each of the linked gaming machines operates like a conventional machine where the generation of certain combinations of symbols provide awards to the individual players whose machines generate such combinations. In addition to this normal mode of play, a bonus feature is added where the generation of combinations of bonus symbols is used by a central controller to build up a pooled bonus value based upon the values of the combinations of bonus symbols generated by all the linked gaming machines. When a player hits a combination which causes the accumulated bonus value to meet or exceed a predetermined value, a bonus award is given to the player which caused the threshold to be exceeded.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 11, 2000
    Assignee: Sigma Game Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford
  • Patent number: 5997401
    Abstract: A method for operating a rotating reel type slot machine, or a video machine which depicts rotating reels, is described herein which allows a player to save in memory one or more symbols from one or more previous games and use those symbols in a current game to obtain a winning combination. The display glass of the slot machine contains an area for displaying the symbols which have been saved.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: December 7, 1999
    Assignee: Sigma Game, Inc.
    Inventor: Curtis J. Crawford
  • Patent number: 5580309
    Abstract: The preferred embodiment of the present invention operates on a system of interconnected gaming machines and selectively provides one or more active features to all of the gaming machines linked to the system. The enablement of the feature may be based on the combined results from previous plays on the individual gaming machines. The feature may be a bonus award for a specific displayed combination, an increased possibility for a winning combination, or any other feature which alters the normal operation of the gaming machines. The first machine to generate a winning game result to which the feature applies will be given an award based upon the feature. The feature is then disabled and the system returns to normal play mode until the feature is again enabled. Various other features are described.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: December 3, 1996
    Assignee: Sigma Game, Inc.
    Inventors: Robert J. Piechowiak, Curtis J. Crawford