Patents by Inventor John R. Clark

John R. Clark 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: 20020070816
    Abstract: A method and resulting formed device are disclosed wherein the method combines polysilicon surface-micromachining with metal electroplating technology to achieve a capacitively-driven, lateral micromechanical resonator with submicron electrode-to-resonator capacitor gaps. Briefly, surface-micromachining is used to achieve the structural material for a resonator, while conformal metal-plating is used to implement capacitive transducer electrodes. This technology makes possible a variety of new resonator configurations, including disk resonators and lateral clamped-clamped and free-free flexural resonators, all with significant frequency and Q advantages over vertical resonators. In addition, this technology introduces metal electrodes, which greatly reduces the series resistance in electrode interconnects, thus, minimizing Q-loading effects while increasing the power handling ability of micromechanical resonators.
    Type: Application
    Filed: August 23, 2001
    Publication date: June 13, 2002
    Inventors: Wan-Thai Hsu, John R. Clark, Clark T.-C. Nguyen
  • Patent number: 5491078
    Abstract: A leach solution comprises water, glucose and glucose oxidase. The oxidase acts upon the glucose to produce gluconic acid and hydrogen peroxide. The leach solution reacts with mineral elements and compounds to produce a leach reaction solution from which metal values can be obtained. The leach solution can also contain ascorbic acid, catalase, galactose, galactose oxidase and a salt such as water soluble metal cyanides and water soluble metal halides.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: February 13, 1996
    Inventor: John R. Clark
  • Patent number: 5428423
    Abstract: A method for making photographic cards by imprinting a message directly on the reverse side of a photograph, in a plurality of configurations including singular cards, cards in sheet form, cards in roll form and cards in a new and improved continuous form with tractor feed selvedge strips and perforations for separating the photographs from each other and from the selvedge strips. Each configuration of photographic cards is comprised of developed photographs having a photographic image surface (32) on one side and a message printed directly on an imprinting surface (34) which is the reverse side of the photographic paper material (30) using a computer (22) with a printer (24) attached and controlled by a software (20) program used by a computer operator (18) to create and edit messages and control the printing of said messages.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: June 27, 1995
    Inventor: John R. Clark
  • Patent number: 5385827
    Abstract: A method of geochemical prospecting where samples of soil, sediment and rock in a geological area are collected and each sample is contacted with a leach solution of water, glucose and glucose oxidase. The oxidase acts upon the glucose to produce gluconic acid and hydrogen peroxide. The leach solution reacts with manganese dioxide carrying trace metal elements and compounds in the samples to produce a leach reaction solution. The leach reaction solution and the residue of the said sample are separated, and the leach reaction solution is analyzed to determine the trace metal content present. From the analysis, the mineral content of the geological area is predicted.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: January 31, 1995
    Inventor: John R. Clark
  • Patent number: 5284890
    Abstract: The invention disclosed relates to an injection mouldable synthetic rubber composition which provides twenty-four hour protection from penetration by H-agent and as such is particularly suitable for use in gas masks. The novel rubber composition comprises a synthetic rubber such as bromobutyl rubber, carbon black and other appropriate additives.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: February 8, 1994
    Assignee: Her Majesty the Queen as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventors: John C. Collyer, John R. Clark
  • Patent number: 4647759
    Abstract: A laser weapon fire control computer apparatus for responding in real time to the escort/threat scenario that confronts the weapon. The first control computer apparatus compares the threat data with stored predicted scenarios to develop a firing strategy menu which takes into account the fact that the laser energy is instantaneously propagated to the target but requires a substantial amount of time to inflict damage. The fire control computer apparatus utilizes the weapon's status, dwell time, slew time and fuel limits to yield a weapon pointing sequence and weapon on-off times.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: March 3, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Richard H. Worsham, John R. Clark
  • Patent number: 4209431
    Abstract: Alkyl-substituted hydroquinone carbonate esters are provided which enhance the resistance of olefin polymers to oxidative and thermal degradation, as well as olefin polymer compositions containing such alkyl-substituted hydroquinone carbonate esters.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: June 24, 1980
    Assignee: Witco Chemical Corporation
    Inventors: John R. Clark, Michael H. Fisch
  • Patent number: PP9861
    Abstract: Description and specifications of a new and distinct blackberry variety which originated from seed produced by a hand pollinated cross of Arkansas Selection 791 (non-patented) and Arkansas Selection 1058 (non-patented) is provided. This new blackberry variety can be distinguished by its very large fruit size, erect canes, late ripening, long harvest period, and uniformly large fruits throughout the season.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: April 15, 1997
    Assignee: University of Arkansas
    Inventors: James N. Moore, John R. Clark