Patents by Inventor Nelson P. Ayala

Nelson P. Ayala 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: 9993426
    Abstract: A pharmaceutical composition comprising bisacodyl [4,4?-(pyridine-2-ylmethylene)bis(4,1-phenylene) diacetate], a solvent, a buffer, and a polymer, methods and apparatus for delivery to a patient.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 12, 2018
    Assignee: C. B. Fleet Company, Inc.
    Inventors: Nelson P. Ayala, Ping Qiu, Debanjan Das, Dave Zimmerman
  • Publication number: 20170079911
    Abstract: A pharmaceutical composition comprising bisacodyl [4,4?-(pyridine-2-ylmethylene)bis(4,1-phenylene) diacetate], a solvent, a buffer, and a polymer, methods and apparatus for delivery to a patient.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 23, 2017
    Inventors: Nelson P. Ayala, Ping Qiu, Debanjan Das, Dave Zimmerman
  • Publication number: 20170056332
    Abstract: A pharmaceutical composition for the treatment of hemorrhoids, sheets, methods of making and using the same.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 2, 2017
    Inventors: Nelson P. Ayala, Ping Qiu, Debanjan Das
  • Patent number: 9526783
    Abstract: A composition for treating and preventing diaper rash comprises zinc oxide, dimethicone, mineral oil, a suspending agent, and an emulsifier. The emulsifier has a Hydrophile-Lipophile Balance number of at most 4.5 and the composition is sprayable. The suspending agent may be a hydrophobic clay.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 27, 2016
    Assignee: C.B. Fleet Company Incorporated
    Inventors: Debanjan Das, Ping Qiu, Nelson P. Ayala
  • Patent number: 5463098
    Abstract: A residue free, antiperspirant gel stick composition is disclosed which comprises an antiperspirant compound which is soluble in a diol, a normally liquid, water soluble diol, a gelling agent and a zinc glycinate in amount sufficient to control the pH of the gel stick at about 4.1 to about 5.0, the glycine to zinc mole ratio of the zinc glycinate added being about 2.0/1 to about 3.0/1. The process for preparing a diol soluble antiperspirant active useful in preparing the residue free gel stick is also disclosed and comprises reacting an antiperspirant compound with a water soluble, normally liquid diol in a water solution by heating for about 1 to about 100 hours at a temperature of about 50.degree. C. to about 110.degree. C.; adding a zinc glycinate to the reaction mixture and removing the water to recover a powdered antiperspirant active.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: October 31, 1995
    Inventors: Rocco Giovanniello, Nelson P. Ayala