Patents by Inventor Malcolm Scott Singer

Malcolm Scott Singer 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).

  • N-alkyl or alkoxy-N'-substituted hydrocarbyl urea
    Patent number: 4111683
    Abstract: Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' being hydrogen or halogen, Z is halogen and X is halogen, hydroxy, alkoxy, acetoxy, carbethoxyalkoxy, phenoxy, alkylthio, carbethoxyalkylthio, phenylthio, phosphono, dithiophosphonoxy, phosphoramido, isocyanato, isothiocyanato, alkyl- and dialkylthiocarbamoylthio, alkyl- and dialkylcarbamoyloxy, alkylsulfonyl, etc., have herbicidal activity.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: September 5, 1978
    Assignee: Chevron Research Company
    Inventor: Malcolm Scott Singer
  • Herbicidal 1-alkanoyloxy-haloethyl urea
    Patent number: 4012225
    Abstract: Herbicidal compounds of the formula ##STR1## wherein R is alkyl, cycloalkyl or phenyl substituted with up to 2 fluorine, chlorine, bromine, trifluoromethyl, nitro, lower alkoxy, lower alkyl, or phenoxy, phenylthio or phenylsulfonyl substituted with up to 2 fluorine or chlorine atoms; R.sup.1 is hydrogen or alkyl; R.sup.2 is alkyl; Z is halogen; Y is hydrogen or Z; and R.sup.3 is hydrogen or alkyl.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: March 15, 1977
    Assignee: Chevron Research Company
    Inventor: Malcolm Scott Singer
  • Herbicidal substituted-haloethyl urea
    Patent number: 4007033
    Abstract: Herbicidal compounds of the formula ##STR1## wherein R is alkyl, cycloalkyl or phenyl substituted with up to 2 fluorine, chlorine, bromine, trifluoromethyl, nitro, lower alkoxy, lower alkyl or phenoxy, phenylthio or phenylsulfonyl substituted with up to 2 fluorine or chlorine atoms; R.sup.1 is hydrogen or alkyl; R.sup.2 is alkyl; Z is halogen; Y is hydrogen or Z; and X is alkoxy, carbalkoxyalkoxy, alkylthio, carbalkoxyalkylthio or phenylthio substituted with up to 2 fluorine, chlorine, bromine or lower alkyl groups.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: February 8, 1977
    Assignee: Chevron Research Company
    Inventor: Malcolm Scott Singer