Patents by Inventor Ronald S. Perry

Ronald S. Perry 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: 4127382
    Abstract: A process for scavenging free formaldehyde from cellulosic-containing articles, such as textile materials, which process comprises contacting the cellulosic-containing textile material containing free formaldehyde with a formaldehyde scavenger which comprises a heterocyclic compound free of carbonyl groups, and containing an NH group, with the ring made up of nitrogen or carbon atoms, the ring being unsaturated or, when fused to a phenyl group, being unsaturated or saturated, and the NH group bonded to a carbon or nitrogen atom which is directly bonded by a double bond to a carbon or nitrogen atom.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: November 28, 1978
    Inventor: Ronald S. Perry