Patents by Inventor Derek R. Palmer

Derek R. Palmer 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).

  • .alpha.-bromodiethylcarbonate
    Patent number: 4820857
    Abstract: The novel compound .alpha.-bromodiethylcarbonate, novel methods for the preparation thereof, its use in the preparation of 1-ethoxycarbonyloxyethyl esters of penicillins and cephalosporins, and improvements in the method for preparing such esters.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: April 11, 1989
    Assignee: Astra Lakemedel Aktiebolag
    Inventors: Derek R. Palmer, Robert G. Tyson
  • Pharmaceutical preparations containing (+)-cyanidan-3-ol derivatives, the use thereof, novel substituted (+)-cyanidan-3-ol derivatives, and processes for producing them
    Patent number: 4644011
    Abstract: Pharmaceutical preparations containing (+)-cyanidan-3-ol derivatives of the formula I ##STR1## wherein R' and R" are hydrogen, an unsubstituted or substituted hydrocarbon radical, or heterocyclic radical, halogen, formyl, free or functionally modified carboxyl, free or etherified or esterified hydroxyl, free, etherified or oxidized mercapto, unsubstituted or substituted sulfamoyl, acyl or unsubstituted or substituted amino, where however R' and R" cannot both be hydrogen simultaneously, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each hydrogen or an unsubstituted or substituted hydrocarbon radical, and R.sub.2 and R.sub.3 together can also be an unsubstituted or substituted methylene group, and R.sub.1 also an acyl group or an amidated carboxyl group; and therapeutically applicable salts of these compounds, as well as new compounds of these preparations.These pharmaceutical preparations are particularly valuable for treating liver and venous diseases.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: February 17, 1987
    Assignee: Zyma SA
    Inventors: Marc E. Ballenegger, Christian G. Rimbault, Alban I. Albert, Andre J. Weith, Pierre Courbat, Robert G. Tyson, Derek R. Palmer, David G. Thompson
  • Methods for the preparation of .alpha.-bromodiethylcarbonate
    Patent number: 4606865
    Abstract: The novel compound .alpha.-bromodiethylcarbonate, novel methods for the preparation thereof, its use in the preparation of 1-ethoxycarbonyloxyethyl esters of penicillins and cephalosporins, and improvements in the method for preparing such esters.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: August 19, 1986
    Assignee: Astra Lakemedel Aktiebolag
    Inventors: Derek R. Palmer, Robert G. Tyson