Patents by Inventor Dennis K. Rohrbaugh

Dennis K. Rohrbaugh 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).

  • Process for the in-situ detoxification of aminoalkyl phosphonothiolates by hydrolysis
    Patent number: 5678243
    Abstract: A process for the detoxification or decontamination of aminoalkyl phosphonothiolates and more particularly, the chemical warfare agent VX and its analogs. The process comprises adding water to the chemical agent so that an hydrolysis reaction of the chemical agent with water occurs at specified molar ratios. In a preferred embodiment, the detoxification process is carried out in situ within the chemical agent storage containers in the field and includes mixing the contents of the container after adding the water. The mixing may be accomplished by shaking, rolling, tumbling or pumping.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: October 14, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Yu-Chu Yang, John B. Samuel, William T. Beaudry, Linda L. Szafraniec, Dennis K. Rohrbaugh
  • Method of chemical decontamination
    Patent number: 5143621
    Abstract: An improved method of decontaminating a solvent which contains mustard. The mprovement consists essentially of using polydivinylbenzene to absorb the said mustard.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 1, 1992
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Philip W. Bartram, Noel C. DiBona, James H. Buchanan, Dennis K. Rohrbaugh
  • VX adsorption from a chlorofluorocarbon solvent using a macroreticular strong acid resin
    Patent number: 5069797
    Abstract: A polydivinylbenezene macroreticular strong acid resin can effectively detaminate solutions containing organophosphorus chemical warfare agents such as o-ethyl S-(2-diisopropylaminoethyl) methylphosphonothiolate (VX).
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: December 3, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Philip W. Bartram, Noel C. DiBona, James H. Buchanan, Dennis K. Rohrbaugh