Patents by Inventor Steven W. Baldwin

Steven W. Baldwin 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).

  • 18F-labeled choline analogs
    Patent number: 6630125
    Abstract: The present invention relates to 18F-labeled choline analogs and to methods of using same as imaging agents (for example, as positron emission tomography (PET) imaging agents) for the noninvasive detection and localization of neoplasms and pathophysiologies influencing choline processing in the body. The invention further relates to methods of synthesizing 18F-labeled choline analogs and to compositions comprising such analogs.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 7, 2003
    Assignee: Duke University
    Inventors: Timothy R. DeGrado, R. Edward Coleman, Steven W. Baldwin, David T. Price, Matthew D. Orr, Shuyan Wang
  • 18F-labeled choline analogs
    Publication number: 20020061279
    Abstract: The present invention relates to 18F-labeled choline analogs and to methods of using same as imaging agents (for example, as positron emission tomography (PET) imaging agents) for the noninvasive detection and localization of neoplasms and pathophysiologies influencing choline processing in the body. The invention further relates to methods of synthesizing 18F-labeled choline analogs and to compositions comprising such analogs.
    Type: Application
    Filed: April 30, 2001
    Publication date: May 23, 2002
    Inventors: Timothy R. DeGrado, R. Edward Coleman, Steven W. Baldwin, David T. Price, Matthew D. Orr, Shuyan Wang
  • Paper conditioner with articulating back-up/transfer rollers
    Patent number: 5937258
    Abstract: A paper conditioner to control image dependent curl which uses one or more counter-rotating transfer rollers which are initially spaced from their respective back-up rollers in the intercopy gap, and which come together as the lead edge enters the nip area, and separates when the trail edge is about to pass. This permits the rollers to have a less demanding runout tolerance by bringing the rollers together when the sheet is in the nip, and then articulating the rollers apart in the intercopy gap.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 10, 1999
    Assignee: Xerox Corporation
    Inventors: Thomas Acquaviva, Alan G. Schlageter, William Brant, James M. Cassidy, Jr., Joseph S. Vetromile, Prashant K. Phadnis, Steven W. Baldwin, John Lombino, Lawrence D. Dipzinski
  • Cleaning brush having fibers of different lengths
    Patent number: 5923940
    Abstract: An apparatus and printing machine that contain a cleaner brush with long sweeper fibers orientated along the overall width of the brush, and having a greater length than the majority of fibers of the brush to remove the particles that adhere to the cleaner housing and thus, prevent toner droppings.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: July 13, 1999
    Assignee: Xerox Corporation
    Inventors: Steven W. Baldwin, Dennis G. Gerbasi, Thomas A. Prentiss, David R. Stookey, Bruce E. Thayer, Ralph J. Weber, Matthew P. Daniels, James J. Teich, Moritz P. Wagner
  • Method and apparatus for testing a connection between digital processing modules, such as in digital printing
    Patent number: 5809226
    Abstract: The physical integrity of a large-scale hardware connection between two modules, such as in the context of high-speed digital printing, is tested by entering a diagnostic mode in which single-instruction handshake routines are repeatedly sent from one module to another through a parallel bus. Each handshake routine activates all of the communication lines in the bus. If a sending module does not receive the expected response to the single-instruction handshake routine within a predetermined time, the sending module causes an audible signal to be emitted. Service personnel can manually manipulate various cables, connectors, and sockets forming a hardware connection while the system is in diagnostic mode, to isolate the location of a hardware fault.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: September 15, 1998
    Assignee: Xerox Corporation
    Inventors: Steven W. Baldwin, William M. OuYang, James R. York, Wayne Cheng, Ronald E. McGarvey, Ana M. Perez, Carolina Creus, Vernon W. Ulrich
  • Roll member wear indicator
    Patent number: 5428437
    Abstract: A roll member, typically for use in a sheet transport system, including a body portion that is susceptible to wear, wherein a visually distinguishable wear indicator is provided for indicating a predetermined amount of wear in the body of the roll member.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: June 27, 1995
    Assignee: Xerox Corporation
    Inventors: Daniel L. Carter, Steven W. Baldwin, Richard F. Scarlata
  • Carrageeman-immobilized esterase
    Patent number: 5262313
    Abstract: Carrageenan-immobilized enzymes are prepared that are stable and retain high activity toward substrates when used in substantially water-immiscible organic solvents. The carrageenan-immobilized enzymes are preferably prepared by introducing droplets of an enzyme/carrageenan solution into a chilled alcohol saturated with a potassium salt and hardening the droplets in the alcohol. The alcohol is selected from n-butanol, benzyl alcohol, crotyl alcohol, n-propanol, isopropanol and sec-butanol. Reactions catalyzed by a .kappa.-carrageenan-immobilized esterase include steroselective transesterifications and hydrolysis reactions.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: November 16, 1993
    Assignee: Andcare, Inc.
    Inventors: Barbara S. Kitchell, Robert W. Henkens, Philip Brown, Steven W. Baldwin, Charles H. Lochmuller, John P. O'Daly