Patents by Inventor Kurt Hofer, Jr.

Kurt Hofer, Jr. 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: 4042632
    Abstract: New antistatic compounds of formula ##STR1## WHEREIN R.sub.1 is alkyl optionally interrupted by 1 or 2 S, SO or SO.sub.2 moieties or 1 COO moiety, any alkyl(ene) being optionally hydroxyl-substituted; cycloalkyl; alkylcycloalkyl; or a mono- or polyoxyalkylene group terminated by alkyl, optionally alkyl-substituted phenyl or phenylalkyl:,n is 1 or 2;m is an integer 1 to 7;R.sub.2 is (m + 1) valent alkylene optionally interrupted by 1 or 2 O, S, SO or SO.sub.2 moieties; bivalent benzene, cyclohexane, biphenyl, diphenyloxide, -sulphide, -sulphoxide, -sulphone or -methane, 2,2-diphenylpropane, bis-cyclohexylmethane or 2,2-bis-cyclohexylpropane, or a (m + 1) valent mono- or polyoxyalkylene group containing R.sub.2 ;and each R.sub.3, independently, has one of the meanings given for R.sub.1, or is hydrogen or phenyl, naphthyl or phenylalkyl optionally substituted on the aromatic nucleus; a group ##STR2## having the above meanings; or a group ##STR3## in which R.sub.
    Type: Grant
    Filed: August 6, 1975
    Date of Patent: August 16, 1977
    Assignee: Sandoz Ltd.
    Inventors: Kurt Hofer, Sr., Kurt Hofer, Jr.