Patents by Inventor Alexander F. Orr

Alexander F. Orr 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).

  • 2-azetidineacetic acid and certain of its congeners
    Patent number: 4620866
    Abstract: 2-Azetidinylacetic acid and certain of its congeners and use thereof for sterilizing the male parts of wheat plants.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: November 4, 1986
    Assignee: Shell Oil Company
    Inventor: Alexander F. Orr
  • N-Formyl-3-carboxyazetidine and its use for sterilizing the male parts of wheat plants
    Patent number: 4569688
    Abstract: N-formyl-3-carboxyazetidine of the formula ##STR1## and use thereof for sterilizing the male parts of wheat plants.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: February 11, 1986
    Assignee: Shell Oil Company
    Inventors: Alexander F. Orr, David R. Clifford
  • Preparation of 1-benzylazetidin-3-ol
    Patent number: 4560507
    Abstract: 1-Benzylazetidin-3-ol, a precursor to 3-carboxyazetidine, is prepared by heating N-benzyl-3-amino-1-chloropropan-2-ol in an aqueous medium, optionally treating the resulting hydrochloride salt with an alkali metal base.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: December 24, 1985
    Assignee: Shell Oil Company
    Inventor: Alexander F. Orr
  • Herbicidal tetrahydrofuran derivatives
    Patent number: 4400198
    Abstract: Compounds of the general formula ##STR1## wherein each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or an optionally substituted alkyl, cycloalkyl or aryl group, or R.sup.1 and R.sup.2 together represent an optionally substituted alkylene group;each of X and Y independently represents one of the groups CR.sup.6 R.sup.7, C=O, C=N--Z, CH--NH.sub.2 ##STR2## in which n is 2 or 3;R.sup.6 represents a hydrogen atom, an optionally substituted alkyl or aryl group or a group of formula --OA in which A represents a hydrogen atom, a heterocyclyl group, an acyl group derived from a carboxylic or a substituted carbamic acid, or a group CR.sup.10 R.sup.11 R.sup.12 ;R.sup.7 represents a hydrogen atom or an optionally substituted alkyl or aryl group;Z represents a hydroxy, alkoxy, acyloxy, amino, alkylamino or dialkylamino group;R.sup.3 represents a hydrogen atom or an optionally substituted alkyl group;each of R.sup.4 and R.sup.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: August 23, 1983
    Assignee: Shell Oil Company
    Inventors: Alexander F. Orr, Michael D. Barker