Patents by Inventor Alexander C. Campbell

Alexander C. Campbell 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: 5593983
    Abstract: The invention is related to substituted 2.beta.-morpholino-androstane derivatives, bonded at their 2.beta.-position to the nitrogen of a group of formula I ##STR1## wherein R represents one to four substituents, each one independently selected from (1-4C) alkyl, phenyl and benzyl, or two at the same carbon atom being together --(CH.sub.2).sub.n -- wherein n is 2-6; and Y is O or S, or a pharmaceutically acceptable salt thereof. These steroids are very potent intravenous anaesthetics. The compounds have fast onset times and ideal `sleep duration` vs. `recovery to full coordination` profiles.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: January 14, 1997
    Assignee: Akzo Nobel N.V.
    Inventor: Alexander C. Campbell
  • Patent number: 5416079
    Abstract: The invention is related to a 21-chloro-pregnane derivative of the formula ##STR1## or pharmaceutically acceptable salts thereof. The compound has intravenous anaesthetic activity, short onset time and high potency.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: May 16, 1995
    Assignee: Akzo N.V.
    Inventor: Alexander C. Campbell
  • Patent number: 4569945
    Abstract: The invention is dealing with arylindane-1,3-diones of the formula: ##STR1## which can be used in the treatment of inflammatories, psoriasis and asthma.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: February 11, 1986
    Assignee: Akzo N.V.
    Inventors: Alexander C. Campbell, Donald F. M. Stevenson
  • Patent number: 4232042
    Abstract: The invention relates to novel compounds of general formula I: ##STR1## and salts, esters and amides thereof, in which R.sub.1 and R.sub.2 represent hydrogen, alkyl or alkenyl (1-4 C),R.sub.3 represents hydrogen, halogen, hydroxy, alkyl (1-4 C) or alkoxy (1-4 C),n has the value 0, 1 or 2 andALK is a saturated or unsaturated hydrocarbon radical with 3-12 carbon atoms, in which a straight carbon chain in between the benzene rings is present, containing 3-8 carbon atoms, andthe dotted line indicates an optional extra bond between the first and second carbon counted from the phenyl ring, in case of an extra bond the group R.sub.2 and one hydrogen attached to said second carbon being absent, having valuable hypocholesterolaemic and hypotriglyceriolaemic properties.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: November 4, 1980
    Assignee: Akzona Incorporated
    Inventors: Alexander C. Campbell, Colin L. Hewett, Filippus J. Zeelen