Patents Represented by Attorney, Agent or Law Firm Dunlap, Codding & Rogers, P.C.
  • Patent number: 7903910
    Abstract: An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a heater localized to each optical resonator. An optical input signal is coupled to one of the resonators making up the compound resonator to form an optical output signal. The center wavelength and shape of the output signal is optimized with a feedback loop using the temperature sensor to control the power dissipated in at least one of the localized heaters. The power dissipated in the remaining resonator heaters is set according to a predetermined function having as an input variable the power dissipated in the resonant heater under control of the said feedback loop.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 8, 2011
    Assignee: Infinera Corporation
    Inventors: Sai Chu, Frederick G. Johnson, Oliver King, Marcus Schuetz, Brent Little
  • Patent number: 7792403
    Abstract: The present invention relates to a waveguide structure, and methods for making the same. The waveguide structure has a polarization rotator for rotating the polarization of the electromagnetic signal, preferably by about ninety-degrees. In one embodiment, the polarization rotator has a midsection with a first level and a second level. The first level of the midsection has a width that decreases along the length of the first level, while the second level has a substantially constant width along the length of the second level. Further, the waveguide structure can include an input conditioning section and the output conditioning section to facilitate matching between the polarization rotator and other waveguide elements.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: September 7, 2010
    Assignee: Infinera Corporation
    Inventors: Brent E. Little, John Hryniewicz
  • Patent number: 7627203
    Abstract: Thermo-optical devices providing heater recirculation in an integrated optical device are described. The thermo-optical devices include at least one waveguide having a non-linear path length in thermal communication with a thermal device. Methods of fabrication and use are also disclosed.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: December 1, 2009
    Inventors: Wei Chen, Wenlu Chen
  • Patent number: 7565041
    Abstract: The present invention is directed to an on-chip symmetric optical circuit having one or more integrally fabricated polarization rotators forming a monolithic, solid state polarization independent symmetric circuit. The symmetric optical circuit has at least one integrally fabricated rotator positioned in a plane of symmetry of at least one optical fiber, waveguide or circuit path of the symmetric optical circuit. The folded symmetric optical circuit may be for example a Mach-Zehnder type optical circuit or an arrayed waveguide grating optical circuit.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: July 21, 2009
    Assignee: Infinera Corporation
    Inventors: Brent E. Little, Wei Chen
  • Patent number: 7523824
    Abstract: A flattened decorative bag having gussets which is convertible to a decorative bag for a basket which, when a basket is inserted therein, conforms to the shape of the basket. Methods of making and using a flattened decorative bag having gussets.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: April 28, 2009
    Assignee: Wanda M. Weder and William F. Straeter
    Inventor: Donald E. Weder
  • Patent number: 7519240
    Abstract: A wavelength independent multi-section optical coupler having at least three optical couplers, and at least two differential phase cells. Each optical coupler has two waveguides forming a coupling region having a net coupling value. The coupling value for each coupling region of the at least three optical couplers is different than the coupling values of the other two coupling regions. Each differential phase cell connects adjacent ones of said optical couplers. Each differential phase cell causes a differential phase shift in light signals traversing between the optical couplers, wherein the differential phase shifts of the differential phase cells, and the coupling value for each coupling region are chosen so as to minimize wavelength, and fabrication sensitivity of said wavelength independent multi-section optical coupler for a designed power splitting ratio.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: April 14, 2009
    Assignee: Infinera Corporation
    Inventors: Brent E. Little, Wei Chen
  • Patent number: 7426813
    Abstract: The present invention relates to an erectable and/or collapsible floral easel for holding a floral object, and more particularly but not by way of limitation, to an erectable or collapsible floral easel for holding a floral object. In one aspect, the present invention relates to a floral easel for holding and/or supporting a floral object. In yet another aspect, the present invention relates to methods of shipping a floral easel, methods of using a floral easel, methods of storing a floral easel, and methods of placing a floral object on a floral easel.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: September 23, 2008
    Assignee: Wanda M. Weder and William F. Staeter
    Inventor: Donald E. Weder
  • Patent number: 7410322
    Abstract: A vibrating trench compactor apparatus including a first frame, a second frame, and a compactor wheel. The first frame has an adapter plate connectable to a vehicle and a first arm and second arm extending from the adapter plate. A plurality of vibration dampening members are disposed through each arm. The second frame has a motor mounting plate and a first leg and a second leg extending from the motor mounting plate where the first and second leg are interconnected to the vibration dampening members. The compactor wheel is rotatably connected to the first leg and the second leg and a vibration motor is mounted to the motor mounting plate of the second frame for imparting vibrational movement to the compactor wheel via the second frame.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: August 12, 2008
    Inventor: Marvin A. Wallace
  • Patent number: 7403110
    Abstract: Alarm monitors comprising conventional personal computers respond automatically to an identified alarm sound by sending a notification signal via the Internet only when a special sound monitoring program is active.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: July 22, 2008
    Assignee: Innovalarm Corporation
    Inventors: David E. Albert, Kathryn Marie Albert
  • Patent number: 7400663
    Abstract: A method of growing and fabricating a group IV-VI semiconductor structure, for use in fabricating devices. In one embodiment, the group IV-VI semiconductor structure produced by the method of the present invention includes a group IV-VI material grown on a selected orientation of [110]. The devices fabricated can be a laser, detector, solar cell, thermal electrical cooling devices, etc. A laser device produced according to the present method will have a low threshold due to the lift-off of the energy degeneracy and low defect density. Growth on the [110] orientation also allows epitaxial growth of the semiconductor structure on a dissimilar substrate, which could improve the thermal dissipation and thus increase the operating temperature of the laser device.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 15, 2008
    Assignee: The Board of Regents of the University of Oklahoma
    Inventor: Zhisheng Shi
  • Patent number: 7398131
    Abstract: Method and system for controlling and monitoring the quality of concrete based on the concrete's maturity. Various embodiments of the present invention are discussed. First, Enhanced Maturity involves a maturity calibration method to account for the water-to-cementitious-materials ratio, air content, and gross unit weight of the concrete. Second, Moisture-Loss Maturity is a method for determining the appropriate time to terminate moisture-loss protection of concrete and concrete structures. Third, Improved Maturity is a method and system for determining the strength of curing concrete using improved maturity calculations. Fourth, SPC Maturity is a method that beneficially couples maturity measurements and calculations with Statistical Process Control (SPC) methods to enable rapid recognition of changes to the concrete mix and/or incompatibilities between the various components of the concrete mix.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: July 8, 2008
    Assignee: Nomadics, Inc.
    Inventors: Steven M. Trost, Michael Fox
  • Patent number: 7397043
    Abstract: A free-space standoff optical detection platform for any detection scheme based on spontaneous emissions, such as for example, fluorescence detection. More particularly, the present invention relates to a detection system having SPCE beads. In one embodiment, the SPCE beads are dielectric spheres coated with a thin metal layer, which supports surface plasmon resonance (SPR) at the operation wavelength. For fluorescence detection, fluorescence reporters can be coated outside of SPCE beads. Upon the presence of the analyte, the fluorescence reporter changes its emitting signal. The SPCE beads amplify the field strength of the excitation via the lens effect and SPR enhancement. The spontaneous emitting signal is collected via the coupling between the SPR and emission, which results high collection efficiency and signal-to-noise ratio. This surface plasmon-coupled emission (SPCE) signal propagates in the beads in a curved path dictated by the SPR condition.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: July 8, 2008
    Assignee: Nomadics, Inc.
    Inventor: Shiou-Jyh Ja
  • Patent number: 7393833
    Abstract: Chimeric proteins comprising soluble Tissue Factor (sTF) and another subunit (e.g., annexin V) are described. The proteins promote blood clotting and/or inhibit cancer by targeting sTF to specific receptors such as phosphatidyl serine (PS) on activated cells. These chimeric proteins are useful in treating patients with excessive bleeding due to inborn problems, drug therapy, trauma or surgery and/or as an anti-cancer therapy, for example by causing blood vessels feeding cancers to become clotted, thereby preventing adequate flow of blood to a tumor, which in turn will lead to tumor inhibition and death or may be used in a therapy to cause clotting within blood vessels that pose a threat in the subject in non-cancerous conditions.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: July 1, 2008
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Stuart E. Lind, Wei-Qun Ding, Roger G. Harrison
  • Patent number: 7389205
    Abstract: An oilfield equipment identifying apparatus comprising a computer loaded with an oilfield equipment database. A unique identification code is input into the computer for each piece of oilfield equipment in the drill string to form a reference in the oilfield equipment database to each piece of oilfield equipment in the drill string. A drilling monitoring device receives input signals indicative of at least one of rotating and non-rotating usage of the drill string and output signals to the computer wherein the computer continuously and automatically monitors the cumulative rotating usage and non-rotating usage of each piece of oilfield equipment identified in the drill string.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: June 17, 2008
    Assignee: Den-Con Electronics, Inc.
    Inventors: Lawrence A. Denny, Edward E. Patterson
  • Patent number: 7373042
    Abstract: A polarization sorter having an input, an output and a slowly varying region. The input has at least one input waveguide. The input waveguide supports at least one guided TE polarized mode of mode ranking mode-i-TE, and at least one guided TM polarized mode of mode ranking mode-j-TM. The output has at least two output waveguides. At least one output waveguide supports a TE polarized mode of mode ranking mode-i-TE, and at least one waveguide supports a TM polarized mode of mode ranking mode-j-TM. The slowly varying region couples the at least one input waveguide at the input to the at least two output waveguides at the output.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 13, 2008
    Assignee: Infinera Corporation
    Inventor: Brent E. Little
  • Patent number: 7370374
    Abstract: The invention is for safety goggles to protect eyes of a user of the safety goggles. The safety goggles include a lens and a frame with a bridge. A goggle chamber is formed between the lens and the face of the user. The safety goggles have a lower ventilation assembly that admits air one either side of the bridge. The safety goggles also includes an upper ventilation assembly at an upper portion of the frame. Air enters the goggle chamber through the lower ventilation assembly, heats near a nose of the user and exits the goggle chamber through the upper ventilation assembly. Each of the lower and upper ventilation assemblies cover a corresponding lower and upper air path in such a manner that allows air to pass through the corresponding air path while preventing solid projectiles and splashed liquid from having a direct line of trajectory to the eyes of the user.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: May 13, 2008
    Assignee: Jackson Products, Inc.
    Inventors: Frank P . Penque, Jr., Wayne P. Phillips, Alan W. Reichow, Karl Citek
  • Patent number: 7364042
    Abstract: A packaging material comprising a plurality of flexible strips of material integrally interconnected to one another along one end thereof so as to form a unitary mass and so that the strips of material are intertwineable with one another to form a resilient tuft. The strips of material interconnected via a border have a bonding material disposed thereon for bondingly connecting the packaging material to a container.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: April 29, 2008
    Assignee: Wanda M. Weder and William F. Straeter
    Inventor: Donald E. Weder
  • Patent number: 7364386
    Abstract: The present invention relates to removal of subsurface contaminants and methods of same. In more particular, but not by way of limitation, the present invention relates to an integrated method for remediating subsurface contaminants through the use of a low concentration surfactant solution (and methods of making and using novel surfactant solutions).
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: April 29, 2008
    Assignee: Surbec Environmental LLC
    Inventor: Bor-Jier Shiau
  • Patent number: 7361189
    Abstract: Prosthetic valves for regulating fluid flow are provided. The valves have at least one leaflet that includes a plurality of pores that allow a quantity of retrograde flow to pass through the leaflet when the valve is in a closed configuration.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: April 22, 2008
    Assignee: Cook Incorporated
    Inventors: Brian C. Case, Beth Ann Kirts, Thomas A. Osborne
  • Patent number: 7359593
    Abstract: An integrated optical mode transformer provides a low loss interconnection between an optical fiber and an integrated optic waveguide having a spot size different from that of the fiber. The mode transformer is comprised of two waveguide layers, an upper layer and a lower layer, with the upper layer being contiguous to the lower layer. The lower layer is the integrated optic waveguide layer forming the optical circuit. The input dimensions of the composite two-waveguide structure supports a fundamental mode that accepts all of the light present on the optical fiber. The upper waveguide layer is tapered down from an input width to an output width and then terminates in such a way that at the termination substantially all of the input optical power resides in the lower waveguide layer. The two-waveguide layer structure is fabricated by deposition and planarization techniques.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: April 15, 2008
    Assignee: Infinera Corporation
    Inventor: Brent E. Little