Patents by Inventor Alex Chen

Alex Chen 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: 20050114286
    Abstract: An apparatus, system, and method are provided for maintaining task prioritization and load balancing of I/O tasks on servers coupled by a plurality of communication channels. The apparatus includes a task controller for maintaining system resources on a failed target channel while resubmitting an unsuccessful task to a different channel. Also, the apparatus includes an upgrade module for upgrading a task prioritization level of a failed I/O task. Additionally, a load module is provided for balancing I/O tasks evenly across the plurality of communication channels according to a prioritization algorithm. The system includes the task controller and a device controller configured to interface with the task controller. The method includes a computer readable medium with computer readable code for selecting a channel, upgrading the prioritization level of a failed task, and maintaining resources on the failed channel while resubmitting the failed I/O task on a different channel.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Inventors: Angqin Bai, Alex Chen, James Chen, Theodore Harris
  • Publication number: 20050114857
    Abstract: Provided is a method, system and program for managing operation requests using different resources. In one embodiment, a first queue is provided for operations which utilize a first resource of a first and second resource. A second queue is provided for operations which utilize the second resource. An operation is queued on the first queue until the first resource is acquired. The first resource is released if the second resource is not also acquired. The operation is queued on the second queue when the first resource is acquired but the second resource is not. In addition, the first resource is released until the operation acquires both the first resource and the second resource.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Inventors: Alex Chen, Angqin Bai, Theodore Harris
  • Publication number: 20050045238
    Abstract: The present invention discloses a novel micro valve device, comprising a micro fluidic channel, which is formed by combining two hydrophobic plates, and the micro/nano structure on the wall surfaces of the channel are used to manipulate the mobility of the fluid in the channel. The function of the micro/nano structure mentioned above is to alter the micro or nano surface pattern on the wall surfaces of the channel. According to the relation between the surface pattern and the surface tension, the textured areas on the wall surfaces can change the mobility of the fluid in the channel. This effect is used as a switch in new types of micro valve devices for biomedical tests. Methods of making the micro valve device are described and include generating a micro/nano structure on the surfaces of the channel. The temporal control of different valve resistances can be achieved with different lengths, shapes, depths and materials of the micro/nano structures.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 3, 2005
    Inventors: Jing-Tang Yang, Jia-Hui Chen, Ker-Jer Huang, Alex Chen
  • Publication number: 20050032804
    Abstract: The dihydrogenphosphate salt of 4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro [1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine is a potent inhibitor of dipeptidyl peptidase-IV and is useful for the prevention and/or treatment of non-insulin dependent diabetes mellitus, also referred to as type 2 diabetes. The invention also relates to a crystalline monohydrate of the dihydrogenphosphate salt as well as a process for its preparation, pharmaceutical compositions containing this novel form and methods of use for the treatment of diabetes, obesity, and high blood pressure.
    Type: Application
    Filed: June 23, 2004
    Publication date: February 10, 2005
    Inventors: Stephen Cypes, Alex Chen, Russell Ferlita, Karl Hansen, Ivan Lee, Vicky Vydra, Robert Wenslow
  • Patent number: 6755100
    Abstract: A tool device includes a diagonally disposed groove and a channel formed in one end and communicating each other, and a latch pin and a button slidably received in the groove and the channel of the tool device. A spring may bias one end of the latch pin out and to engage into a tool member, and to detachably lock the tool device to the tool member. The latch pin may be easily disengaged from the tool member by depressing the button into the tool device. The button has a notch formed between two legs for slidably receiving the latch pin.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: June 29, 2004
    Assignee: Stanley Chiro International Ltd.
    Inventor: Alex Chen
  • Publication number: 20040118254
    Abstract: A tool device includes a diagonally disposed groove and a channel formed in one end and communicating each other, and a latch pin and a button slidably received in the groove and the channel of the tool device. A spring may bias one end of the latch pin out and to engage into a tool member, and to detachably lock the tool device to the tool member. The latch pin may be easily disengaged from the tool member by depressing the button into the tool device. The button has a notch formed between two legs for slidably receiving the latch pin.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventor: Alex Chen
  • Publication number: 20030126960
    Abstract: A socket includes a driving portion having an engaging hole formed by a peripheral wall which has a uniform thickness formed through the peripheral portion for avoiding the stress concentration problems occurred in the driving portion of the socket. The driving portion includes an inner peripheral surface and an outer peripheral surface parallel to each other for forming the uniform thickness of the peripheral wall of the socket. The inner peripheral surface and the outer peripheral surface each includes six curved surfaces and six rounded corners.
    Type: Application
    Filed: January 7, 2002
    Publication date: July 10, 2003
    Inventor: Alex Chen
  • Publication number: 20030073142
    Abstract: The present invention concerns the prophylaxis or therapy of immunoglobulin E-mediated disease conditions. The present invention discloses methods for identifying peptides that induce a cytotoxic T-lymphocyte response against immunoglobulin E. The present invention further discloses compositions that are able to elicit in a mammal a cytotoxic T-lymphocyte response to naturally processed and presented immunoglobulin E peptides, and methods for their use.
    Type: Application
    Filed: August 8, 2002
    Publication date: April 17, 2003
    Inventors: Swey-Shen Alex Chen, Yong-Min Yang, Theresa J. Barankiewicz, Zhong Chen
  • Patent number: 6507667
    Abstract: In a color digital imaging apparatus, a light source selector is provided for a user to select a proper illumination condition. When down loading the captured image in a computer system, a color correction function is performed at the computer system.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: January 14, 2003
    Assignee: Umax Data Systems, Inc.
    Inventors: Louis Hsieh, Alice Yang, Alex Chen
  • Patent number: 4978047
    Abstract: A device for facilitating the hammering of a nail including a substantially cylindrical outer casing having a first open end and a second open end. A striking pin having a first end with a rounded head provided thereon disposed to be struck by a hammer or the like. An inner tube is received in the outer casing and attached to the striking pin at a first end thereof. The inner tube is longitudinally slidable in the outer casing. Two flexible holding strips each having a concave portion are disposed to be pressed outwardly for receiving a nail to be hammered therebetween. A hammering pin is attached to a second end of the inner tube at a first end thereof. A second end of the hammering pin is disposed to abut the head of the nail to be hammered which is held by the concave portions of the two holding strips before hammering. Two springs are provided for repositioning the hammering pin, the inner tube and the striking pin after the hammering of the nail is completed.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: December 18, 1990
    Inventor: Alex Chen
  • Patent number: D436958
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: January 30, 2001
    Assignee: MacPower Peripherals Inc.
    Inventors: Tommy Chen, Alex Chen
  • Patent number: D499718
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: December 14, 2004
    Assignee: Hannspree, Inc
    Inventor: Alex Chen