Patents Represented by Attorney, Agent or Law Firm James A. Poulos, III
  • Patent number: 6676492
    Abstract: A planatizing equipment has solid abrasive particles suspended in a liquid suspension. The solid abrasive particles have on their outer surfaces tiny, hard but brittle working edges and points. The liquid suspension medium and the solid abrasive particles have nearly the same density to prevent the brittle working edges and paints from sufficiently contacting and damaging each other. This significantly lengthens the useful life of the solid abrasive particles.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: January 13, 2004
    Inventor: Chou H. Li
  • Patent number: 6610549
    Abstract: A ferroelectric cell, particularly one integrated on a silicon substrate, comprising an amorphous barrier layer interposed between the ferroelectric stack and the silicon. Preferably, the ferroelectric stack includes conductive metal oxide electrodes sandwiching the ferroelectric layer. The metal oxide may act as a templating layer to crystallographically orient the ferroelectric layer. Alternatively, the electrodes and ferroelectric layer may be polycrystalline. The amorphous barrier layer may be composed of an intermetallic alloy, such as Ti3Al, a metal-metalloid, such as Pd—Si, a combination of early and later transition metals, such as Ti—Ni, and other related compound metal systems, such as (Ti, Zr)—Be, that form amorphous metals.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: August 26, 2003
    Assignee: University of Maryland, College Park
    Inventors: Sanjeev Aggarwal, Ramamoorthy Ramesh
  • Patent number: 6599781
    Abstract: A method of mass-producing a solid state device comprises supplying a solid state material substrate; providing two adjacent semiconductor pockets on the substrate; and forming a gate layer less than 3 to 40 Angstroms thick. The gate layer has atomically smooth major surfaces, and perfectly bonded onto the substrate to bridge a gap between the two semiconductor pockets.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: July 29, 2003
    Inventor: Chou H. Li
  • Patent number: 5251981
    Abstract: The invention relates to thermocouples which are formed from a junction of ruthenium oxide (RuO.sub.2) and iridium oxide (IrO.sub.2). The resulting thermocouple produces a typical electrical output of about 4.5 .mu.V/k at 40.degree. C. to about 4.1 .mu.v/K at 200.degree. C. The thermocouples are extremely resistant to corrosion and thus may be used for direct contact with corrosive environments such as halide containing acids, cyanides, chlorates or peroxides. Because the thermocouples can directly contact the environment, they are 100 to 1000 times faster than commercially available sheathed sensors.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: October 12, 1993
    Assignee: United States of America, as Represented by the Secretary of Commerce
    Inventor: Kenneth G. Kreider
  • Patent number: PP13878
    Abstract: The present invention is a new and distinct thorny blackberry cultivar named ‘Chesapeake’, which is capable of producing very large fruit in the spring midseason, the fruit being much larger and similarly durable than that of the standard cultivars. The cultivar is characterized by moderate suckering ability, recurved thorns and its very flavorful fruit which is edible even when the fruit is immature.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: June 17, 2003
    Assignees: University of Maryland, Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry J. Swartz, Joseph A. Fiola, Herbert D. Stiles, Brian R. Smith