Patents by Inventor Pedro Rodriguez

Pedro Rodriguez 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).

  • Patent number: 5562740
    Abstract: Disclosed is a process for making reduced odor individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C.sub.2 -C.sub.9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. The individualized cellulosic fibers are then contacted with a strong alkaline solution and strong oxidizing agent to reduce the odor and increase the brightness. Preferably, the crosslinking agent is citric acid, and preferably, between about 1.0 weight % and about 12.0 weight % of the crosslinking agent reacts to form the intrafiber crosslink bonds. Preferably, the alkaline solution is an aqueous solution of sodium hydroxide, and preferably, about 0.09 weight % of the sodium hydroxide, on a dry fiber weight basis, is applied to the crosslinked fibers.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: October 8, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Jeffery T. Cook, Walter D. Daniels, Pedro A. Rodriguez, Peter A. Graef, Clifford R. Bolstad, William L. Duncan
  • Patent number: 5525441
    Abstract: A high density cell stack is provided utilizing strips of flexible cathode material and flexible anode materials folded over each other at right angles. A suitable anode material is lithium and a suitable cathode material is manganese dioxide. The disclosed cell stacks are rapidly manufactured to provide high density cells with good mechanical stability and good stability against shorting.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: June 11, 1996
    Assignee: Power Conversion, Inc.
    Inventors: Thomas B. Reddy, Pedro Rodriguez
  • Patent number: 4494481
    Abstract: Solid absorbent materials, having adsorbed thereto from about 50 ppm to about 3000 ppm of a soluble salt of a transition metal of Group Ib or Group IIb of the periodic table of the elements, when used as animal litter products, effectively prevent the development of urine odors.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: January 22, 1985
    Assignee: The Procter & Gamble Company
    Inventors: Pedro A. Rodriguez, James B. Edwards, Fred M. Habermehl
  • Patent number: 4005024
    Abstract: A rinse aid composition containing an organosilane and a low molecular weight monofunctional organic acid is capable of imparting soil release benefits to cooking utensils and tableware rinsed therewith. Food soils adhere to such surfaces less strongly, thereby making them easier to clean. The inclusion of the monofunctional organic acid insures that objectionable spotting or filming does not form on the rinsed objects.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: January 25, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Pedro A. Rodriguez, David C. Heckert, David M. Watt, Jr.